Find flights
Deals
Insights
Savings Tips
When to book
FAQs & Tips
User Tips
Direct Flights
Airlines

BOS - SEA

$79 Find Cheap Flights from Boston to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Seattle departing on 11/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seattle.
In the last 7 days travelers have searched 46,479,581 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

World’s Best Airfare Search Site for 2024

Cheap Flight Deals from Boston to Seattle (BOS-SEA)

 
These are the cheapest deals for flights from Boston to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Boston to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Boston to Seattle.

Recent one-way flight deals from Boston to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Boston to Seattle found on KAYAK recently.

Recent last minute flight deals from Boston to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Boston to Seattle.

Recent direct flight deals from Boston to Seattle

The latest deals for direct flights from Boston to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Boston to Seattle

Find recent round-trip train or bus tickets from Boston to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:29 am - 9:50 amBOS-SEA
6h 21mnonstop
11:00 am - 7:20 pmSEA-BOS
5h 20mnonstop
$157JetBlue
Find Deal
Sat, Dec 7 - Wed, Dec 11
7:19 pm - 10:39 pmBOS-SEA
6h 20mnonstop
4:00 pm - 4:50 pmSEA-BOS
21h 50m2 stops
Wed, Nov 13 - Wed, Dec 4
5:20 am - 12:59 pmBOS-SEA
10h 39m1 stop
5:30 am - 5:18 pmSEA-BOS
8h 48m1 stop
$176American Airlines
Find Deal
Thu, Nov 14 - Tue, Nov 19
7:00 am - 10:37 amBOS-SEA
6h 37mnonstop
7:00 am - 3:13 pmSEA-BOS
5h 13mnonstop
$192Alaska Airlines
Find Deal
Sat, Dec 7 - Tue, Dec 10
12:17 pm - 7:51 pmBOS-SEA
10h 34m1 stop
11:59 pm - 1:24 pmSEA-BOS
10h 25m1 stop
$196American Airlines
Find Deal
Fri, Dec 6 - Mon, Dec 9
6:40 pm - 10:15 pmBOS-SEA
6h 35mnonstop
11:28 pm - 8:00 amSEA-BOS
5h 32mnonstop
$197Delta
Find Deal
Fri, Dec 6 - Mon, Dec 9
7:00 am - 10:45 amBOS-SEA
6h 45mnonstop
7:30 am - 4:02 pmSEA-BOS
5h 32mnonstop
$198Delta
Find Deal
Thu, Nov 14 - Wed, Nov 20
7:00 am - 10:37 amBOS-SEA
6h 37mnonstop
10:50 pm - 6:54 pmSEA-BOS
17h 04m1 stop
$206Alaska Airlines
Find Deal
Sat, Dec 7 - Mon, Dec 9
6:00 am - 12:53 pmBOS-SEA
9h 53m1 stop
11:55 pm - 12:45 pmSEA-BOS
9h 50m1 stop
$253United Airlines
Find Deal
Fri, Nov 22 - Sun, Dec 15
8:00 am - 3:33 pmBOS-SEA
10h 33m1 stop
7:11 pm - 7:43 amSEA-BOS
9h 32m2 stops
$271United Airlines
Find Deal
Fri, Nov 15 - Mon, Nov 18
7:00 am - 10:30 amBOS-SEA
6h 30mnonstop
$79JetBlue
Find Deal
Wed, Nov 20
5:20 am - 12:59 pmBOS-SEA
10h 39m1 stop
$88American Airlines
Find Deal
Thu, Nov 14
6:40 pm - 10:15 pmBOS-SEA
6h 35mnonstop
$99Delta
Find Deal
Fri, Dec 6
7:07 am - 10:34 amBOS-SEA
6h 27mnonstop
$104Alaska Airlines
Find Deal
Thu, Nov 28
6:30 pm - 8:20 amBOS-SEA
16h 50m1 stop
$114Alaska Airlines
Find Deal
Wed, Nov 13
7:00 am - 10:45 amBOS-SEA
6h 45mnonstop
$129Delta
Find Deal
Sun, Nov 17
11:46 am - 5:02 pmBOS-SEA
8h 16m1 stop
$145Sun Country Air
Find Deal
Wed, Dec 18
11:30 am - 5:28 pmBOS-SEA
8h 58m1 stop
$148Sun Country Air
Find Deal
Thu, Nov 21
7:15 am - 2:00 pmBOS-SEA
9h 45m1 stop
$162United Airlines
Find Deal
Wed, Jan 1
10:57 am - 11:09 pmBOS-SEA
15h 12m2 stops
$183United Airlines
Find Deal
Sun, Feb 2
9:00 am - 12:10 amBOS-SEA
18h 10m2 stops
5:45 am - 6:55 amSEA-BOS
22h 10m2 stops
$349Spirit Airlines
Find Deal
Tue, Nov 5 - Tue, Nov 12
12:54 pm - 12:33 pmBOS-SEA
26h 39m2 stops
5:28 pm - 9:59 amSEA-BOS
13h 31m2 stops
$378Spirit Airlines
Find Deal
Mon, Nov 4 - Tue, Nov 12
6:55 pm - 10:21 pmBOS-SEA
6h 26mnonstop
11:29 pm - 7:55 amSEA-BOS
5h 26mnonstop
$437Delta
Find Deal
Mon, Nov 4 - Tue, Nov 12
3:45 pm - 10:23 pmBOS-SEA
9h 38m1 stop
11:29 pm - 7:55 amSEA-BOS
5h 26mnonstop
$447Delta
Find Deal
Mon, Nov 4 - Tue, Nov 12
7:19 pm - 10:39 pmBOS-SEA
6h 20mnonstop
3:49 pm - 11:59 pmSEA-BOS
5h 10mnonstop
$467Alaska Airlines
Find Deal
Tue, Nov 5 - Fri, Nov 15
7:59 pm - 6:07 amBOS-SEA
13h 08m1 stop
6:35 am - 5:25 pmSEA-BOS
7h 50m1 stop
$496Alaska Airlines
Find Deal
Mon, Nov 4 - Tue, Nov 12
3:52 pm - 11:25 pmBOS-SEA
10h 33m1 stop
11:59 pm - 11:08 amSEA-BOS
8h 09m1 stop
$553American Airlines
Find Deal
Fri, Nov 1 - Tue, Nov 5
7:00 am - 10:21 amBOS-SEA
6h 21mnonstop
12:35 am - 11:23 amSEA-BOS
7h 48m1 stop
$649American Airlines
Find Deal
Mon, Nov 4 - Tue, Nov 5
7:00 am - 10:25 amBOS-SEA
6h 25mnonstop
11:40 am - 8:06 pmSEA-BOS
5h 26mnonstop
$732JetBlue
Find Deal
Fri, Nov 1 - Mon, Nov 4
7:00 am - 10:25 amBOS-SEA
6h 25mnonstop
11:40 am - 8:05 pmSEA-BOS
5h 25mnonstop
$2,339JetBlue
Find Deal
Mon, Nov 4 - Thu, Nov 7
6:29 am - 9:50 amBOS-SEA
6h 21mnonstop
11:00 am - 7:20 pmSEA-BOS
5h 20mnonstop
$157JetBlue
Find Deal
Sat, Dec 7 - Thu, Dec 12
7:00 am - 10:30 amBOS-SEA
6h 30mnonstop
11:40 am - 8:05 pmSEA-BOS
5h 25mnonstop
$158JetBlue
Find Deal
Thu, Nov 14 - Wed, Nov 20
6:29 am - 9:50 amBOS-SEA
6h 21mnonstop
11:00 am - 7:20 pmSEA-BOS
5h 20mnonstop
$177JetBlue
Find Deal
Sat, Dec 7 - Fri, Dec 13
7:00 am - 10:37 amBOS-SEA
6h 37mnonstop
7:00 am - 3:13 pmSEA-BOS
5h 13mnonstop
$192Alaska Airlines
Find Deal
Sat, Dec 7 - Tue, Dec 10
6:35 pm - 10:15 pmBOS-SEA
6h 40mnonstop
10:00 pm - 6:29 amSEA-BOS
5h 29mnonstop
$194Delta
Find Deal
Mon, Jan 20 - Thu, Jan 23
6:40 pm - 10:15 pmBOS-SEA
6h 35mnonstop
11:28 pm - 8:00 amSEA-BOS
5h 32mnonstop
$197Delta
Find Deal
Fri, Dec 6 - Sun, Dec 8
7:00 am - 10:45 amBOS-SEA
6h 45mnonstop
7:30 am - 4:02 pmSEA-BOS
5h 32mnonstop
$198Delta
Find Deal
Thu, Nov 14 - Wed, Nov 20
6:40 pm - 10:25 pmBOS-SEA
6h 45mnonstop
7:30 am - 4:02 pmSEA-BOS
5h 32mnonstop
$199Delta
Find Deal
Thu, Nov 14 - Wed, Nov 20
7:54 pm - 11:31 pmBOS-SEA
6h 37mnonstop
7:00 am - 3:13 pmSEA-BOS
5h 13mnonstop
$227Alaska Airlines
Find Deal
Thu, Dec 5 - Sat, Dec 7
7:00 am - 10:21 amBOS-SEA
6h 21mnonstop
4:31 pm - 12:59 amSEA-BOS
5h 28mnonstop
$247Alaska Airlines
Find Deal
Thu, Nov 14 - Sat, Nov 23

Flights from Boston to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Seattle?

The average price of all flights from Boston to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Boston to Seattle, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Boston to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Seattle is January, where tickets cost $236 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $516 and $516 respectively.

How far in advance should I book a flight from Boston to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boston to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 173 days before departure.
 AI-powered savings tips

How to save more on a Boston to Seattle flight

When planning a trip from Boston to Seattle, there are several strategies to save money on your flight. Generally, the cheapest day of the week to fly is Friday, while the cheapest month is January.

Advance Booking: Book your flight at least 7 days in advance to get the best price.

Cheapest Airline: Spirit Airlines generally offers the cheapest flights for this route.

Direct Flight: Flying direct is typically more expensive, consider flights with layovers to save money.

Flight Route: The route from Boston Logan International to Seattle/Tacoma International is usually the cheapest.

This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK. 


Good to know

Low season

January

High season

August

Cheapest flight

$79
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly with an average 42% increase in price.
Flight from Boston to Seattle

When to book flights from Boston to Seattle

Are your dates flexible? Find out the best times to travel from Boston to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Seattle

  • Are there lounges at SEA?

    Multiple airlines run several lounges at Seattle-Tacoma International Airport (SEA). They include The American Express Centurion Lounge and the United Club. Travelers flying aboard Alaska Airlines should know that the airline operates three lounges at this facility. There’s one at Concourse C, adjacent to gate C16A, Concourse D, near gate D1, and the North Satellite Terminal, close to gate N2.

  • Which airline has its hub at SEA?

    Passengers flying aboard Delta Airlines should remember that the carrier has its hub at Seattle-Tacoma International Airport (SEA), and you'll arrive through the main terminal, Concourse A. You'll enjoy the two Delta Sky Clubs located in Concourse A, near gate A, and South Satellite Terminal, near gate S9. Also, you'll receive priority clearance under the fast lane program.

  • Are there lactating rooms at SEA?

    Seattle-Tacoma International Airport (SEA) features suites that cater to the needs of moms. Located in Concourse D on the lower level of D Annex, these rooms provide privacy as you pump and breastfeed the little ones. Other amenities in these rooms include sinks, comfy chairs, and electrical sockets.

  • Can I leave my luggage at Seattle-Tacoma International Airport (SEA)?

    Passengers arriving at SEA from BOS who feel that they want to leave excess baggage behind, you’ll get storage facilities between baggage carousels 12 & 13. The facility lockers operate between 5:30 am until 12:30 am.

  • Are there onsite hotels at Seattle-Tacoma International Airport?

    While there are no hotels located onsite at Seattle-Tacoma International Airport, there is a cluster of hotels just shy of a mile away from the airport’s terminals. Hilton Seattle Airport & Conference Center, Crowne Plaza Seattle Airport, and Seattle Airport Marriott all are within a mile of the airport and offer free airport pickup and drop-off.

  • Can I fly from Boston to Seattle non-stop?

    Alaska Airlines, jetBlue Airways, and Delta Air Lines all offer nonstop flights from Boston to Seattle. One-stop flights are also common between the two cities, with flights offered by airlines such as United Airlines, Delta Air Lines, and American Airlines. Common layover cities for such flights include Washington D.C., Detroit, and Philadelphia.

  • What is the quickest way from Seattle-Tacoma International Airport to downtown Seattle?

    If you are not renting or driving a vehicle, Link Light Rail is the quickest way to get from the airport to downtown Seattle. Link Light Rail trains connect Seattle-Tacoma International Airport directly to downtown Seattle, and they even run all the way north up to the University of Washington. The airport’s Link station is found on the fourth floor of the adjacent parking garage.

  • What facilities are available for children in Seattle-Tacoma International Airport and Boston Logan International Airport?

    Seattle-Tacoma International Airport and Boston Logan International Airport both have children’s play areas available. Seattle-Tacoma International Airport’s children’s play area, the Playroom, is located across from the Seattle Tap Room by the A gates in the Central Terminal. Boston Logan International Airport’s three children’s play areas are located by Gate 18 in Terminal A, Gate 30 in Terminal B, and Gate 25 in Terminal C.

  • What is the cheapest flight from Boston to Seattle?

    In the last 3 days, the lowest price for a flight from Boston to Seattle was $79 for a one-way ticket and $157 for a round-trip.

  • Do I need a passport to fly between Boston and Seattle?

    No, a passport isn't needed to fly from Boston to Seattle. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Seattle?

    JetBlue, Alaska Airlines, American Airlines, Delta, and Aeromexico offer inflight Wi-Fi service on the Boston to Seattle flight route.

  • Which aircraft models fly most regularly from Boston to Seattle?

    The Airbus A321neo is the aircraft model that flies most regularly on the Boston to Seattle flight route.

  • Which airline alliances offer flights from Boston to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Seattle, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to Seattle?

    There are nonstop flights from Boston to Seattle on a daily basis.

  • Which is the best airline for flights from Boston to Seattle, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Seattle are Delta and Alaska Airlines. With an average price for the route of $405 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $440 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boston to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Boston with another airline. Booking your flights between Boston and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Boston to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $198 or less one-way and $306 or less round-trip.
  • As the busiest airport in Boston, Boston Logan International Airport (BOS) features high-tech innovations and modern infrastructure. This makes it the airport of choice among most airlines, partly the reason why it’s ranked among the 20 busiest airports in the US. Domestic departures and arrivals are through terminals, A, B, and C, while E is reserved for international flights. You can easily connect the terminals via walkways. Also, a shuttle operates between these terminals every 5-15min.
  • Boston Logan International Airport (BOS) in collaboration with Transportation Security Administration (TSA) runs a Cares program that ensures that disabled passengers and travelers with mobility limitations receive assistance. You’ll get dedicated staff to guide you through the security checkpoints and when enplaning. To take advantage of these services, endeavor to contact your airline about 72h before departure.
  • For the prayerful travelers who need a quiet escape to have a moment with the Almighty before the flight, BOS has a chapel at your disposal. You can locate this religious sanctuary in Terminal C before security, on the Arrivals Level. The oasis conducts frequent interfaith prayers to the interest travelers, whether departing or arriving.
  • In case you’re feeling fatigued ahead of your trip BOS to Seattle-Tacoma International Airport (SEA), locate Xpress Spa in Terminal B, close to the American Airlines counter, or Jet Setter Mini Spa and Classique Nail Salon in Terminal C. Services at these outlets such as facials and deep tissue massage provide the much-needed calmness and relaxation before you take off.
  • If your wallet is depleted and you need to recharge it before leaving Boston Logan International Airport (BOS) for Seattle-Tacoma International Airport (SEA), you won’t have a shortage of options to choose from. Those departing through Terminal A will find various ATMs before security.
  • Looking for a family-friendly diversion during your time at Boston Logan International Airport? A good option for art-loving families is Logan International’s Airport Public Art Program. The program features a variety of temporary exhibits that aim to enliven the airport’s environment while simultaneously educating the public.
  • For travelers flying with their four-legged companions on their flights from Boston to Seattle, you will be happy to hear that both airports have pet relief areas available. Boston Logan International Airport’s pet relief areas are located by the Arrivals area outside of the terminals as well as in Terminal E. In Seattle-Tacoma International Airport there are five pet relief areas: two outside of Baggage Claim and the three others by the N, S, and B Gates.
  • Boston Logan International Airport has plenty to offer in terms of dining that offers a bit of local flare. The Harpoon Tap Room, for instance, is a branch of Boston’s Harpoon Brewery and serves a variety of local brews along with a variety of barroom classics. Another local option is Dine Boston. Dine Boston offers a seasonal menu that is updated regularly by guest chefs from the Boston gastronomical scene.
  • For travelers picking up a rental car upon arriving at Seattle-Tacoma International Airport, the airport’s rental car facilities are found in a separate building that is accessible by 24/7 shuttle buses. The shuttle buses pick up from outside of Baggage Claim on both the north and south side of the terminal.
  • Traveling from the suburbs to Boston Logan International Airport? One easy option is to hop on the Logan Express instead of renting a car. The Logan Express features stops in many of Boston’s suburbs such as Framingham, Back Bay, and Woburn.
See more tips

Flights from Boston to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Boston to Seattle 
Verified travelerFlew with Alaska AirlinesBOS-SEAOct 2024
Flying Alaska Airlines from Boston to Seattle was an example of getting exactly what you expect. A no-frills basic experience, but one where the important things were accomplished, timely departure, on-time arrival, no drama, no glitches, completely as anticipated. I paid a little extra for one offered perk (seat selection), and I'm glad I did because my early morning flight was full. Next time, I'll likely pre-order a snack, since they looked good, were served promptly, and are priced right.
Verified travelerFlew with Alaska AirlinesBOS-SEASep 2024
I've always had my best luck with Delta and will stick with them in the future.
CarlaFlew with Alaska AirlinesBOS-SEAMay 2024
It’s a good choice. Seattle airport is huge and confusing if you are changing planes. Have plenty of time to switch.
GFlew with Alaska AirlinesBOS-SEAApr 2024
Would have liked to have more information on getting to my rental car off site It wasn't hard, but it would have taken less time and less wandering if it had been more clear
DavidFlew with Alaska AirlinesBOS-SEAFeb 2024
Not enough trips from Boston to Seattle to judge… flight times and boarding process were very positive.

Prefer to fly non-stop from Boston to Seattle?

Find which airlines fly direct from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Nonstop departures

Boston Logan Intl to Seattle/Tacoma Intl

Monday

Air France, Air Tahiti Nui, Alaska Airlines, +14 more

Air France, Air Tahiti Nui, +15 more

Tuesday

Air France, Air Tahiti Nui, Alaska Airlines, +11 more

Air France, Air Tahiti Nui, +12 more

Wednesday

Air France, Air Tahiti Nui, Alaska Airlines, +11 more

Air France, Air Tahiti Nui, +12 more

Thursday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Friday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Saturday

Air France, Air Tahiti Nui, Alaska Airlines, +13 more

Air France, Air Tahiti Nui, +14 more

Sunday

Air France, Air Tahiti Nui, Alaska Airlines, +12 more

Air France, Air Tahiti Nui, +13 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Boston Logan Intl

Monday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +11 more

Aer Lingus, Air Tahiti Nui, +12 more

Tuesday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +12 more

Aer Lingus, Air Tahiti Nui, +13 more

Wednesday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +10 more

Aer Lingus, Air Tahiti Nui, +11 more

Thursday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +15 more

Aer Lingus, Air Tahiti Nui, +16 more

Friday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +11 more

Aer Lingus, Air Tahiti Nui, +12 more

Saturday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +13 more

Aer Lingus, Air Tahiti Nui, +14 more

Sunday

Aer Lingus, Air Tahiti Nui, Alaska Airlines, +13 more

Aer Lingus, Air Tahiti Nui, +14 more

See more direct flights
See more direct flights

Top 5 airlines serving from Boston to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Boston to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9420 reviews
8.2Boarding
7.2Food
8.6Crew
7.1Entertainment
7.9Comfort
Airline reviews

I've flown at least six times this past year. For some reason, the entry into Seattle felt like the worst ever. It felt like the plane was going too high, too fast for entry and then a very rough landing. Could have been the weather. All else was fine. Please consider changing snacks from pretzel sticks to nuts as an option.

8.0 ExcellentAnonymous, Oct 2024BNA - SEA
Read more Alaska Airlines reviews

I've flown at least six times this past year. For some reason, the entry into Seattle felt like the worst ever. It felt like the plane was going too high, too fast for entry and then a very rough landing. Could have been the weather. All else was fine. Please consider changing snacks from pretzel sticks to nuts as an option.

All pretty good except we were a bit late getting into Seattle and I had to run to my next gate and was the very last person to board (they were about to close the door but were terrific about getting me aboard.) Hustling between gates is not usually a problem, but I just had a hip replacement which affected my ability to hurry.

There isn't any food on that short flight. The plane had to be de-iced but it wasn't much dela

A review system on Kayak that would allow “NA” (Not Applicable) as an answer. For example, if food wasn’t ordered, I cannot say how good it might or might not have been.

Easy boarding, good staff, comfortable seats, easy ride. Also, friendly passengers!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

Your seats are too crowded! and you don't serve full meals on this 5 hour flight? Just rake in the profits.

FLL to SEA delayed one hour due to mechanical issue. Had to return to gate from runway.

I’m highly satisfied with Alaska over other airline experiences however the wifi kept kicking me off and the service was intermittent. I kept having to fool with it to get it to work.

As expected cyst service up front was very good we needed assistance at the gates and they were very accommodating

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

Flight was changed from departing from Boston to departing from Detroit.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Screen didn’t play movies, do I was pretty boated the entire flight.

It was very cold because the air conditioner was on high power, and my son got sick.

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

The best flight I’ve had in a while. The plane was like 25% capacity, if that. Smoothest boarding and deplaning process I’ve ever experienced. Wish all flights were this smooth.

Did not enjoy this flight at all. All of my coworkers flew delta and I chose JetBlue because I really value how simple the WiFi and entertainment is and this flight I didn’t get either. Crew staff was unsympathetic to my system not working, everyone I asked for help with was extremely bothered by my request for help.

Little snafu at boarding. Staff communicated with gate poorly. Flight attendant was rude making disembark early. This was an older mint class. Needs an overhaul for sure. Food was good. The male flight attendant was really nice.

My encounter with the entertainment services provided on board was moderate; the functionality of the Wi-Fi connection was either sluggish or nonoperational, while the display screens were antiquated and suffered from poor visibility. On the positive side, the cabin exuded a sense of expansiveness, and the crew exhibited amiable and accommodating behavior throughout the journey.

Everything was great except for some reason crew and ground crew could not figure out how to deal with an electric wheelchair and it delayed us 20-30mins. Was pretty frustrating for passengers and the captain.

Like the space, did not like the snack options, there was no power outlet in seats, no entertainment, no flyfi.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

There was no air on the plane and it was very hot.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

Smoothly flight, pleasant flight attendants. I wish there were better food choices.

Everything was awful Flight attendant was condescending, rude and not helpful at all. Small outdated plane. No service, uncomfortable seats. Flight attendant was really the worst. He used hand gestures to communicate instead of words and whenever he used words he was condescending.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

Overall good. Tight connection in DFW because of gate unavailability upon landing.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

I love to flight american however my carry on had to be sent with regular luggage and it was broken. Don't appreciate that. If when I buy a ticket says I can take a carry on and a hand item there should be space for mwsy stuff and not be basically forced to send the item even if it's at no charge. A.A. needs to work on that. Everything else excellent.

Deparature was late, which is annoying but the arrival was fine and the baggage came early.

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The free internet access did not work, so we had to purchase 2 Internet packages. Flight attendants were not proactive in checking in with first class patrons

The flight attendants were talking the entire time on the back and I couldn’t even take a nap. Super annoying

11h50m total delay. Had to switch to another flight that was still a 7h30m delay.

A very good flight. All personnel were gracious and pleasant. Good flight. No complaints.

Book cheap flights from Boston to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Seattle found on KAYAK in the last 72 hours.
11/20Wed
nonstopJetBlue
6h 30mBOS-SEA
$79
11/14Thu
1 stopAmerican Airlines
10h 39mBOS-SEA
$88
12/6Fri
nonstopDelta
6h 35mBOS-SEA
$99
11/28Thu
nonstopAlaska Airlines
6h 27mBOS-SEA
$104
11/13Wed
1 stopAlaska Airlines
16h 50mBOS-SEA
$114
11/17Sun
nonstopDelta
6h 45mBOS-SEA
$129
12/18Wed
1 stopSun Country Air
8h 16mBOS-SEA
$145
11/21Thu
1 stopSun Country Air
8h 58mBOS-SEA
$148
1/1Wed
1 stopUnited Airlines
9h 45mBOS-SEA
$162
2/2Sun
2 stopsUnited Airlines
15h 12mBOS-SEA
$183

Search by stops

Search by airline

Search by price

Last minute flights from Boston to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Seattle that are departing in the next 10 days.
11/5Tue
multi-stopSpirit Airlines
18h 10mBOS-SEA
11/12Tue
multi-stopSpirit Airlines
22h 10mSEA-BOS
$349
11/4Mon
multi-stopSpirit Airlines
26h 39mBOS-SEA
11/12Tue
multi-stopSpirit Airlines
13h 31mSEA-BOS
$378
11/4Mon
nonstopDelta
6h 26mBOS-SEA
11/12Tue
nonstopDelta
5h 26mSEA-BOS
$437
11/4Mon
multi-stopDelta
9h 38mBOS-SEA
11/12Tue
nonstopDelta
5h 26mSEA-BOS
$447
11/5Tue
nonstopAlaska Airlines
6h 20mBOS-SEA
11/15Fri
nonstopAlaska Airlines
5h 10mSEA-BOS
$467
11/4Mon
multi-stopAlaska Airlines
13h 08mBOS-SEA
11/12Tue
multi-stopAlaska Airlines
7h 50mSEA-BOS
$496
11/1Fri
multi-stopAmerican Airlines
10h 33mBOS-SEA
11/5Tue
multi-stopAmerican Airlines
8h 09mSEA-BOS
$553
11/4Mon
nonstopAmerican Airlines
6h 21mBOS-SEA
11/5Tue
multi-stopAmerican Airlines
7h 48mSEA-BOS
$649
11/1Fri
nonstopJetBlue
6h 25mBOS-SEA
11/4Mon
nonstopJetBlue
5h 26mSEA-BOS
$732
11/4Mon
nonstopJetBlue
6h 25mBOS-SEA
11/7Thu
nonstopJetBlue
5h 25mSEA-BOS
$2,339

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Boston to Seattle

Information on your arrival and departure airports