AS9202 and Boston BOS to Seattle SEA Flights. Other flights departing from Boston BOS: AA1414, B6569, DL1410, B6365. Other flights arriving at Seattle SEA: DL372, UA1399, AS1307, WN799. All flights connecting Boston BOS to Seattle SEA. All flight schedules from General Edward Lawrence Logan International , Massachusetts , USA to Seattle Tacoma International , Washington , USA . This route is operated by 4 airline (s), and the flight time is 6 hours and 45 minutes. The distance is 2502 miles. USA. Each day, there are between 9 and 12 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 13m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 76 flights. The most frequent day of departure is Sunday, when 16% of all weekly flights depart. The Federal Aviation Administration lifted a ground stop for all Alaska Airlines flights Wednesday after grounding the planes earlier as a result of a computer problem …The cheapest prices found with in the last 7 days for return flights were $53 and $39 for one-way flights to Seattle for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 15 - Wed, May 22. PHX. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston. Find the best flights fast, track prices, and book with confidence. We offer Round Trip starting at $257 and One-Way flights starting at $129. Find Last Minute Deals on flights from BOS to SEA with Hot Rate Discounts! Save up to 40% on Cheap Flights from Boston (BOS) to Seattle (SEA). Distance from Boston to Seattle (Logan International Airport – Seattle–Tacoma International Airport) is 2496 miles / 4016 kilometers / 2169 nautical miles. See also a map, estimated flight duration, carbon dioxide emissions and …The flight time from Seattle to Boston is 5 hours, 16 minutes. The time spent in the air is 4 hours, 46 minutes. These numbers are averages. In reality, it varies by airline with JetBlue being the fastest taking 5 hours, 11 minutes, and Alaska the slowest taking 5 …Feb 4, 2024 · Find the best deals on flights from Boston Logan International (BOS) to Seattle / Tacoma International (SEA). Compare prices from hundreds of major travel agents and airlines, all in one search. View airport information for Seattle (SEA) Compare cheap flights to Seattle with Alaska Airlines. Enjoy our low prices and generous experience. Book the lowest fares on Seattle flights today.Cheap Flights from Boston to San Francisco (BOS-SFO) Prices were available within the past 7 days and start at $98 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Boston to San Francisco with no change fee on ...All dates and times are local for the airport listed. Gates and times are subject to change. For the most current information, check the airport monitors. Search for a topic... Find the flight status for a specific Delta Air Lines flight and receive real-time notifications via …Washington ». Seattle ». First Class. $261. Seattle. Search and compare first class flight deals to Seattle. Fly from San Francisco from $327, from Ontario from $387, from Los Angeles from $454. Book your first class tickets to Seattle.from. Boston (MA) Cheap flights from Boston (MA) to Seattle from £138.99. Boston (MA) (United States) - Seattle (United States) return flights from £292.99. From 04/06/2024 …First Class. $367. Boston. Search and compare first class flight deals to Boston. Fly from Washington, D.C. from $319, from Washington, D.C. from $338, from Chicago from $387. Book your first class tickets to Boston.Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. … Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from £85 one-way. Flex your dates to find the best BOS-SEA ticket prices. Sun, 8 Dec SEA - BOS with United. 1 stop. from £204. Seattle. £204 per passenger.Departing Wed, 23 Oct, returning Sat, 26 Oct.Return flight with United.Outbound indirect flight with United, departs from Boston Logan International on Wed, 23 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from ... Unless our flight has been listed as "cancelled" we suggest you always check-in for the original scheduled departure time of your flight. Check the status of your United Airlines flight by searching by route or flight …Take a look at the list of non stop flights and flights with layovers from Boston to Seattle with the lowest price of $47. The fastest direct flight takes 6h and the fastest connecting – 7h 26m. *Departure and arrival times - local.Book the lowest fares on Seattle flights today! Find low-fare American Airlines flights to Seattle. Enjoy our travel experience and great prices. Book the lowest fares on Seattle flights today! ... Boston (BOS) to. Seattle (SEA) 05/06/24 - 05/13/24. from. $251* Updated: 5 hours ago. Round trip. I. Economy. See Latest Fare. Columbus (CMH) to ...Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston. Find the best flights fast, track prices, and book with confidence. My dates are flexible. SHOW FARES. Include Nearby Airports. Search for a Delta flight round-trip, multi-city or more. You choose from over 300 destinations worldwide to find a flight that fits your schedule. from. Boston (MA) Cheap flights from Boston (MA) to Seattle from £138.99. Boston (MA) (United States) - Seattle (United States) return flights from £292.99. From 04/06/2024 (Tuesday) - 12/06/2024 (Wednesday). Check for the dates with the lowest prices and find the cheapest rates. All flight schedules from General Edward Lawrence Logan International , Massachusetts , USA to Seattle Tacoma International , Washington , USA . This route is operated by 4 airline (s), and the flight time is 6 hours and 45 minutes. The distance is 2502 miles. USA. Feb 4, 2024 · Find the best deals on flights from Boston Logan International (BOS) to Seattle / Tacoma International (SEA). Compare prices from hundreds of major travel agents and airlines, all in one search. Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Sat, Apr 27 - … My dates are flexible. SHOW FARES. Include Nearby Airports. Search for a Delta flight round-trip, multi-city or more. You choose from over 300 destinations worldwide to find a flight that fits your schedule. There are 4 airlines that fly nonstop from Boston to Seattle. They are: Alaska Airlines, Delta, Hainan Airlines and JetBlue. The cheapest price of all airlines flying this route was found with JetBlue at $133 for a one-way flight. On average, the best prices for this route can be found at Alaska Airlines.All dates and times are local for the airport listed. Gates and times are subject to change. For the most current information, check the airport monitors. Search for a topic... Find the flight status for a specific Delta Air Lines flight and receive real-time notifications via …The total flight duration from Seattle, WA to Boston, MA is 4 hours, 45 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like SEA to BOS. It covers the entire time on a typical commercial flight including take-off and landing.Flights from Seattle to Boston via Chicago Midway Ave. Duration 7h 30m When Saturday Estimated price $220 - $700 Flights from Seattle to Providence via Chicago Midway Ave. Duration 7h 15m When Monday to Friday Estimated price $230 - $750 Flights from Seattle to Providence via Baltimore Ave. Duration 12h 10m WhenB789. Arrived / Gate Arrival. Sun 05:40PM EST. 08:30PM PST Sun. Boston Logan Intl (KBOS) - Seattle-Tacoma Intl (KSEA) - Flight Finder - Find and track any flight (airline or private) -- search by origin and destination.The best one-way flight to Boston from Seattle in the past 72 hours is $104. The best round-trip flight deal from Seattle to Boston found on momondo in the last 72 hours is $233. The fastest flight from Seattle to Boston takes 5h 15m. Direct flights go from Seattle to Boston every day. There is 1 airport near Boston: Boston Logan Intl (BOS)Jan 28, 2024 · Flights from Spirit Airlines typically cost $377.91 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Boston to Seattle on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport. BOS - Boston Logan - Signature Flight Support 240 Prescott St, Boston, MA 02128 View Airport; Charter to Boston Private Jet Charter Boston to Seattle Local Seattle Airports SEA - Seattle Tacoma International - 2400 S 170th St, SeaTac, WA 98158, USA View Airport; Charter to SeattleThe two airlines most popular with KAYAK users for flights from San Diego to Boston are Alaska Airlines and Delta. With an average price for the route of $417 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $373 and an overall rating of 8.0.Purchase a flight up to 331 days in advance. You can now purchase flights as far out as 331 days from the date of booking at any time. Our flight schedules will automatically extend day-by-day. Check out our Best Fare Finder to see if we have flights scheduled during your desired dates for a chosen route. See flight availability.Flight Status & Notifications. All fields required. Search by. From City or Airport. To City or Airport. Departure Date Selected Departure date 2024AprilWednesday24. Open calender and then use pageup and pagedown to navigate between months and alt + pageup and alt + pagedown for years.She was the No. 1 overall pick by Seattle in the 2002 WNBA draft and played 19 seasons. She retired after the 2022 season as the league's all-time assists leader …Track JetBlue (B6) #498 flight from Seattle-Tacoma Intl to Boston Logan Intl. Flight status, tracking, and historical data for JetBlue 498 (B6498/JBU498) including scheduled, estimated, and actual departure and arrival times.Round-trip One-way. Mon 4/22. Mon 4/29. 1 adult, Economy. Find deals. We work with more than 300 partners to bring you better travel deals. The best prices from …Reportedly, Air India may deploy Boeing 777-9 for its likely nonstop service to India from Dallas and Los Angeles. A fleet of new widebody B777-9 planes will join Air India starting from the end of 2024, as part of the US$34-billion deal with Boeing. Currently, IndianEagle.com has best deals for LAX, Seattle and Dallas to India flights by ...Flights from Boston to Seattle. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Boston to Seattle. Find the best flights fast,... Airfares from $125 One Way, $226 Round Trip from Boston to Seattle. Prices starting at $226 for return flights and $125 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Boston to Seattle flight time & Flights Info. Flight Time. 6 hours 21 minutes. Earliest Flight. 06:30⇒09:50. Latest Flight. 19:59⇒23:22. Direct Flight Price.Flights from Sun Country Air traveling this route typically cost $397.79 RT. This price is typically 78% cheaper than other airlines that offer Seattle to Boston flights. When booking this route, the cheapest RT price found was $138.The calculation of flight time is based on the straight line distance from BOS to SEA ("as the crow flies"), which is about 2,495 miles or 4 016 kilometers. Your trip begins at Boston Logan International Airport in Boston, Massachusetts. It ends at Seattle-Tacoma International Airport in Seattle, Washington.May 7, 2024. today. Home. Flights. To United States. Boston to Seattle. Lowest fares from Boston to Seattle. From. location_on. compare_arrows. To. … Book Cheap Nonstop & Direct Flights from Boston to Seattle: Search and compare airfares on Tripadvisor to find the best nonstop and direct flights for your trip from Boston to Seattle. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for non stop and direct flights going to and from your destination. Use Google Flights to find cheap departing flights to Boston and to track prices for specific travel dates for your next getaway. Compare flight deals to Seattle from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from £102 one-way. Flex your dates to find the best BOS-SEA ticket prices. We offer Round Trip starting at $257 and One-Way flights starting at $129. Find Last Minute Deals on flights from BOS to SEA with Hot Rate Discounts! Save up to 40% on Cheap Flights from Boston (BOS) to Seattle (SEA).Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. … The cheapest return flight ticket from Houston to Seattle found by KAYAK users in the last 72 hours was for $119 on Frontier, followed by Spirit Airlines ($157). One-way flight deals have also been found from as low as $75 on Frontier and from $94 on Spirit Airlines. Cheap Flights from Boston to Seattle Paine Field Intl. Airport (BOS-PAE) Prices were available within the past 7 days and start at $215 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.Prices were available within the past 7 days and start at $39 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Looking for cheap flights to Seattle? Book now to earn airline miles in addition to our OneKeyCash rewards and receive alerts if flight prices ...Find and book cheap flights from Logan Intl. Airport to Seattle - Tacoma Intl. Airport with Expedia. Compare prices, dates, airlines and deals for one-way or roundtrip flights from …AS459 and Boston BOS to Seattle SEA Flights. Flight AS459 is code-shared by 5 airlines using the flight numbers AA9302, DE5235, JL6357, KE6222, TN2335. Other flights departing from Boston BOS: AA1467, AA1509, DL5843, WN3047. Other flights arriving at Seattle SEA: DL143, AS767, DL697, DL3953. 08/15/24 - 08/23/24. from. $ 568*. Viewed: 15 hours ago. From. Boston (BOS) To. Seattle (SEA) Roundtrip. Find and book cheap flights from Logan Intl. Airport to Seattle - Tacoma Intl. Airport with Expedia. Compare prices, dates, airlines and deals for one-way or roundtrip flights from …Flying time between cities. Travelmath provides an online flight time calculator for all types of travel routes. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a ...Cheap JetBlue flights from USA to Seattle. Check out some of the cheapest JetBlue flights we've come across from USA to Seattle. Deals update often to give you more flight options matching your criteria. Wed 5/8 7:30 pm JFK - SEA. Nonstop 6h 19m JetBlue. Fri 5/10 11:59 pm SEA - JFK. Nonstop 5h 21m JetBlue. Deal found 4/18 $217.Cheap Seattle to Boston flights in April & May 2024. Listed are some of the best fares we've found on flights departing from Seattle to Boston in 2024. Check back regularly for other flight deals. jue. 2/5 9:05 p.m. SEA - BOS. Nonstop 5h 31m JetBlue. mié. 8/5 4:25 p.m. BOS - SEA. Nonstop 6h 05m JetBlue.1 stop. Wed, 1 May BOS - SEA with United. 1 stop. from $395. Boston.$454 per passenger.Departing Wed, 1 May, returning Tue, 7 May.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 1 May, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston …Flights from Spirit Airlines typically cost $377.91 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Boston to Seattle on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport.Compare cheap flights and find tickets from Boston (BOS) to Seattle (SEA). Book directly with no added fees. Skyscanner. Help; English (UK) EN Australia $ AUD AUD ($) Flights. Hotels. Car Hire. Cheap Flights from Boston to Seattle ... Add nearby airports. Depart. Return. Cabin Class & Travellers 1 adult, Economy. Direct flights only. Search ... Atlanta, GA - Hartsfield-Jackson Atlanta Intl Airport is the most popular connection for one stop flights between Boston, MA and Seattle; In-Flight information. The average flying time for a direct flight from Boston, MA to Seattle is 6 hours 24 minutes; Most direct flights leave around 7:00 EDT; Korean Air flight #25 is today's earliest flight ... HU730 and Boston BOS to Seattle SEA Flights. This is a multi leg flight of Hainan Airlines HU730. Next leg is Seattle to Beijing. Other flights departing from Boston BOS: UA729, WN4615, AA1664, UA205. Other flights arriving at Seattle SEA: AS305, DL887, AA2368, DL1359. All flights connecting Boston BOS to Seattle SEA. The calculation of flight time is based on the straight line distance from Boston, MA to Seattle, WA ("as the crow flies"), which is about 2,492 miles or 4 011 kilometers. Your trip begins in Boston, Massachusetts. It ends in Seattle, Washington. Your flight direction from Boston, MA to Seattle, WA is Northwest (-64 degrees from North). The ... The cheapest return flight ticket from Houston to Seattle found by KAYAK users in the last 72 hours was for $119 on Frontier, followed by Spirit Airlines ($157). One-way flight deals have also been found from as low as $75 on Frontier and from $94 on Spirit Airlines. Prices were available within the past 7 days and start at $129 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Tue, Apr 30 - … Atlanta, GA - Hartsfield-Jackson Atlanta Intl Airport is the most popular connection for one stop flights between Boston, MA and Seattle; In-Flight information. The average flying time for a direct flight from Boston, MA to Seattle is 6 hours 24 minutes; Most direct flights leave around 7:00 EDT; Korean Air flight #25 is today's earliest flight ... On average, a flight to Boston costs $298. The cheapest price found on KAYAK in the last 2 weeks cost $29 and departed from Myrtle Beach. The most popular routes on KAYAK are Washington, D.C. to Boston which costs $306 on average, and San Francisco to Boston, which costs $428 on average. See prices from:The average flight time from Boston to Seattle is 5 hours and 50 minutes. The flight distance is 4005 km / 2489 miles and the average flight speed is 688 km/h / 428 mph. How many QR2033 flights are operated per week? 4 flights per week. The flight QR2033 is operated on Thursday, Friday, Saturday and Sunday.The total flight duration from Boston, MA to Seattle, WA is 5 hours, 38 minutes. This is the average in-air flight time (wheels up to wheels down on the runway) based on actual flights taken over the past year, including routes like BOS to SEA. It covers the entire time on a typical commercial flight including take-off and landing.The two airlines most popular with KAYAK users for flights from Boston to Vancouver are Alaska Airlines and Delta. With an average price for the route of $631 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $530 and an overall rating of 8.0. The two airlines most popular with KAYAK users for flights from Boston to San Francisco are Alaska Airlines and Delta. With an average price for the route of $371 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $338 and an overall rating of 8.0. Boston to Seattle Flights Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Boston to Seattle offer the perfect respite. Not only does exploring Seattle provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare ... Airlines will now be required to give automatic cash refunds for canceled and delayed flights April 24, 2024 at 3:01 am Updated April 24, 2024 at 7:19 am ByCheap JetBlue flights from USA to Seattle. Check out some of the cheapest JetBlue flights we've come across from USA to Seattle. Deals update often to give you more flight options matching your criteria. Wed 5/8 7:30 pm JFK - SEA. Nonstop 6h 19m JetBlue. Fri 5/10 11:59 pm SEA - JFK. Nonstop 5h 21m JetBlue. Deal found 4/18 $217.Return flight price. Wed 01 May - Sat 04 May. from. £210. One-way flight price: from £210 Flights Departing from: Boston Flights arriving in: Seattle Airlines flying to this destination
Find The Best Day To Fly from Boston to Seattle Amazing Alaska Airlines BOS to SEA Flight Deals The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $265 round trip and $149 one way.. Samantha apps
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $247 round trip and one way. Prices and availability subject to change. Additional terms may apply. Wed, Apr 3 - Wed, Apr 10. BOS. Boston. SEA. Seattle.Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Boston. Find the best flights fast, track prices, and book with confidence.Flights from Spirit Airlines typically cost $377.91 RT. The cheapest Spirit Airlines flight found for this route was $138. When traveling from Boston to Seattle on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Seattle/Tacoma Intl Airport.Average price of flights to Seattle by month. Currently, November is the cheapest month in which you can book a flight from Boston to Seattle (average of ₹ 1,146). Flying from Boston to Seattle in August is currently the most expensive (average of …Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.Cheap flights from Boston to Seattle (BOS - SEA) from $89. Round-trip One-way Multi-city. From? To? Tue 4/2. Tue 4/9. 1 adult. Economy. Find Your Flight. The best prices …Cheap Flights from Boston Logan International (BOS) to Seattle (SEA) from $232 | Skyscanner. Roundtrip One way Multi-city. Depart. 4/14/24. Return. 4/21/24. …Airlines will now be required to give automatic cash refunds for canceled and delayed flights April 24, 2024 at 3:01 am Updated April 24, 2024 at 7:19 am ByReportedly, Air India may deploy Boeing 777-9 for its likely nonstop service to India from Dallas and Los Angeles. A fleet of new widebody B777-9 planes will join Air India starting from the end of 2024, as part of the US$34-billion deal with Boeing. Currently, IndianEagle.com has best deals for LAX, Seattle and Dallas to India flights by ...Direct. from $286. Boston.$287 per passenger.Departing Mon, Apr 29, returning Tue, May 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Mon, Apr 29, arriving in Boston Logan International.Inbound direct flight with Alaska Airlines departing from Boston Logan ...The two airlines most popular with KAYAK users for flights from Seattle to Boston are Alaska Airlines and Delta. With an average price for the route of C$ 475 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 323 and an overall rating of 8.0.Seattle. 239 € per passenger. Departing Thu, 2 May, returning Sun, 5 May. Return flight with Alaska Airlines and jetBlue. Outbound direct flight with Alaska Airlines departs from Boston Logan International on Thu, 2 May, arriving in Seattle / Tacoma International. Book flights from Boston Logan to Seattle/Tacoma with Southwest Airlines ®. It’s easy to find the Logan International Airport to Seattle-Tacoma International Airport flight to make your booking and travel a breeze. Whether you’re traveling for business or pleasure, solo or with the whole family, you’ll enjoy flying Southwest ®. Prices were available within the past 7 days and start at ₹11,552 for one-way flights and ₹21,344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Compare & reserve one-way or return flights from Boston to Seattle from ₹11,552 only to get the best flight deals and promotions ... Fall sees many cultural festivals, such as Croatia Fest, Fremont Oktoberfest and TurkFest. Winter highlights include Winterfest, Seattle Boat Show and Wintergrass Bluegrass Festival. Book cheap flights to Seattle (SEA) with United Airlines. Enjoy all the in-flight perks on your Seattle flight, including speed Wi-Fi. The average flight time from Boston to Seattle is 5 hours and 50 minutes. The flight distance is 4005 km / 2489 miles and the average flight speed is 688 km/h / 428 mph. How many QR2033 flights are operated per week? 4 flights per week. The flight QR2033 is operated on Thursday, Friday, Saturday and Sunday. Find flights to Seattle from $117. Fly from Boston on American Airlines, Spirit Airlines, JetBlue and more. Search for Seattle flights on KAYAK now to find the best deal. The 27-year-old slugger has been a staple in Boston's lineup since 2018, batting .279 hitter with an .851 OPS for his career. ... Former Seattle Mariners' Ace on …Users in need of a one-way flight from Boston to Washington can choose from these deals. Users can also find round-trip Boston to Washington flights by using the search form above. Wed 4/24 5:00 am BOS - SEA. 1 stop 10h 38m American Airlines. Deal found 4/17 $125.Average price of flights to Seattle by month. Currently, November is the cheapest month in which you can book a flight from Boston to Seattle (average of ₹ 1,146). Flying from Boston to Seattle in August is currently the most expensive (average of …Find The Best Day To Fly from Boston to Seattle Amazing Alaska Airlines BOS to SEA Flight Deals The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $265 round trip and $149 one way..