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BOS - SEA

$86 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 8/27. 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
сб 6/29
сб 7/6

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 43,361,115 times on KAYAK, and here is why:

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Cheap flight deals from Boston to Seattle (BOS-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:00 am - 8:45 amBOS-SEA
28h 45m1 stop
5:00 pm - 9:50 amSEA-BOS
13h 50m2 stops
$177Spirit Airlines
Find Deal
пн, серп. 26 - вт, серп. 27
7:00 am - 8:21 pmBOS-SEA
16h 21m1 stop
9:38 am - 6:34 pmSEA-BOS
29h 56m2 stops
$194Spirit Airlines
Find Deal
ср, серп. 28 - ср, вер. 11
6:00 am - 8:21 pmBOS-SEA
17h 21m2 stops
1:35 pm - 6:34 pmSEA-BOS
25h 59m2 stops
$195Spirit Airlines
Find Deal
ср, серп. 28 - ср, вер. 11
5:12 pm - 10:56 pmBOS-SEA
8h 44m1 stop
11:59 pm - 12:19 pmSEA-BOS
9h 20m1 stop
$283American Airlines
Find Deal
чт, вер. 26 - пн, вер. 30
6:35 pm - 9:56 pmBOS-SEA
6h 21mnonstop
10:00 pm - 6:20 amSEA-BOS
5h 20mnonstop
$297Delta
Find Deal
ср, вер. 25 - ср, жов. 2
7:00 am - 10:17 amBOS-SEA
6h 17mnonstop
9:29 pm - 5:44 amSEA-BOS
5h 15mnonstop
$317Alaska Airlines
Find Deal
чт, серп. 29 - вт, вер. 3
5:12 pm - 10:56 pmBOS-SEA
8h 44m1 stop
11:59 pm - 12:19 pmSEA-BOS
9h 20m1 stop
$318American Airlines
Find Deal
пт, вер. 20 - пн, вер. 23
5:45 pm - 9:06 pmBOS-SEA
6h 21mnonstop
11:59 pm - 10:14 amSEA-BOS
7h 15m1 stop
$321JetBlue
Find Deal
ср, вер. 25 - ср, жов. 2
5:45 pm - 9:06 pmBOS-SEA
6h 21mnonstop
10:16 pm - 6:39 amSEA-BOS
5h 23mnonstop
$332JetBlue
Find Deal
ср, вер. 18 - пт, вер. 20
4:36 pm - 11:42 pmBOS-SEA
10h 06m1 stop
9:29 pm - 5:44 amSEA-BOS
5h 15mnonstop
$336Alaska Airlines
Find Deal
чт, вер. 19 - сб, вер. 21

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 Wednesday 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 $238 on average. On the other hand, the most expensive months are August and June, where the average cost of tickets is $488 and $481 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 30 days before departure.

Which airlines provide the cheapest flights from Boston to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Boston to Seattle were found on Spirit Airlines ($177) and American Airlines ($283). Spirit Airlines proposed the cheapest one-way flight at $86.

Which airlines fly most frequently between Boston and Seattle?

In normal times, Alaska Airlines flies from Boston to Seattle up to 6 times per day, Delta up to 3 times per day, and JetBlue up to 2 times per day.

Which airlines fly non-stop between Boston and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Boston to Seattle.
There are 3 airlines that fly nonstop from Boston to Seattle. They are: Alaska Airlines, Delta and JetBlue. The cheapest price of all airlines flying this route was found with JetBlue at $129 for a one-way flight. On average, the best prices for this route can be found at JetBlue.

How many flights are there between Boston and Seattle per day?

Each day, there are between 9 and 15 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 17m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 83 flights. The most frequent day of departure is Thursday, when 18% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Boston and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Boston to Seattle take?

The duration of a nonstop flight to Seattle from Boston is typically 6h 01m. The journey crosses a distance of 2,487 miles.

What’s the earliest departure time from Boston to Seattle?

Early birds can take the earliest flight from Boston at 6:30 am and will be landing in Seattle at 9:47 am.

What’s the latest departure time from Boston to Seattle?

If you prefer to fly at night, the latest flight from Boston to Seattle jets off at 7:59 pm and lands at 11:08 pm.

Good to know

Low season

January

High season

August

Cheapest flight

$86
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 36% 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 $86 for a one-way ticket and $177 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?

    All the following airlines offer inflight Wi-Fi service on the Boston to Seattle flight route: JetBlue, Alaska Airlines, Delta, Hawaiian Airlines, Aeromexico, Japan Airlines, Qatar Airways, and American Airlines.

  • 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 $386 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 $383 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 $251 or less one-way and $406 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

Insights shared by verified travelers who flew the route from Boston to Seattle 
CarlaFlew with Alaska AirlinesMay 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 AirlinesApr 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 AirlinesFeb 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 Logan Intl to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Boston Logan Intl to Seattle/Tacoma Intl

Monday

Aer Lingus, Air France, Air Tahiti Nui, +17 more

Aer Lingus, Air France, +18 more

Tuesday

Aer Lingus, Air France, Air Tahiti Nui, +14 more

Aer Lingus, Air France, +15 more

Wednesday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Thursday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Friday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

Saturday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

Sunday

Aer Lingus, Air France, Air Tahiti Nui, +15 more

Aer Lingus, Air France, +16 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Boston Logan Intl

Monday

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

Air France, Air Tahiti Nui, +14 more

Tuesday

Air France, Air Tahiti Nui, Alaska Airlines, +15 more

Air France, Air Tahiti Nui, +16 more

Wednesday

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

Air France, Air Tahiti Nui, +14 more

Thursday

Air France, Air Tahiti Nui, Alaska Airlines, +15 more

Air France, Air Tahiti Nui, +16 more

Friday

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

Air France, Air Tahiti Nui, +14 more

Saturday

Aer Lingus, Air France, Air Tahiti Nui, +16 more

Aer Lingus, Air France, +17 more

Sunday

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

Air France, Air Tahiti Nui, +15 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 9192 reviews
8.6Crew
7.3Food
8.2Boarding
7.9Comfort
7.3Entertainment
Airline reviews

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

8.0 ExcellentNorma, May 2024SNA - SEA
Read more about Alaska Airlines reviews

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

Full flight where I had another passenger sitting in middle seat who said that he had lost 250 lbs from 500. The stewardess on exiting the flight advise me that I was going to receive a refund. I thought she was talking about another passenger. The stewardess saw that to make him comfortable I had lifted the armrest and flew for 5 hours to Seattle from Reagan DCA with a portion of his body on my seat. I survived. I flight to remember!!!!

the flight was delayed almost 3 hours and not one time was we told that it was delayed or why. I had asked one of the crew members why it was delayed, 20 minutes after the flight was supposed to take off, and was told that they had no idea what was going on and that they had not been told anything. this is FRIGHTENING!!!! No excuse!!

Flights were on time. Check in was fine. Crew members were pleasant.

I would have liked it to have been easier to order food for the flight. My son was not happy with the snack pack I bought him and it was a very long flight for a little boy to go without food.

Ground staff at LAX was very helpful. The Alaska lounge food and service is better than most airport lounges. I think the Staff are well trained polite and actually seem happy to work there. Great service Thanks 🙏 Jjk

The flight was very very delayed and arrived much later than planned. There was no communication about why or when our arrival would be. I would expect better and open communication about the flight but there was none. Also just pretzels? How disappointing.

I got to my destination but no comforts no snacks nothing. Like herding cows!!

My only comment was the confusion at Houston. Suppose to leave at 6 am and didn't leave til 11 am. Then moving from gate 10 to 30 and couple of hours later back to gate 10. Otherwise everyone everything was great.

The food options could be better. Possibly some sandwiches to be added to the menu.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Overall fine but both ways for this trip was delayed.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

Despite a bumpy flight the pilot was great. The rest of the crew on the other hand couldn’t care less if a passenger would colapse and die. Horrible service, robot like, lifeless…

No service due to turbulence. No entertainment on this type of aircraft. But nice old comfortable seats.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Great service, on time, professional experience. Great landing under challenging crosswind conditions at BWI. I made my connection in Charlotte despite the plane getting stuck finding a gate to park in on arrival. The only glitch -- the Airbus 320 from CLT to BWI was quite comfortable, but the larger 321 from Logan to Charlotte had minimal leg/knee room. I get that it's a high volume route but dang, couldn't even open my laptop it was so tight

Very smooth for one of the busiest travel days of the year and the crew was great.

Uncomfortable plane, no entertainment and to board they had us standing in a line for over 20-30 minutes

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.
8/27вт
2 stopsSpirit Airlines
25h 36mBOS-SEA
$86
8/28ср
1 stopSpirit Airlines
16h 21mBOS-SEA
$88
9/18ср
1 stopAmerican Airlines
8h 10mBOS-SEA
$143
9/18ср
nonstopDelta
6h 21mBOS-SEA
$149
8/31сб
nonstopDelta
6h 30mBOS-SEA
$159
8/30пт
nonstopAlaska Airlines
6h 14mBOS-SEA
$184
9/13пт
1 stopAmerican Airlines
8h 44mBOS-SEA
$187
6/6чт
nonstopJetBlue
6h 03mBOS-SEA
$199
6/17пн
nonstopJetBlue
6h 13mBOS-SEA
$204
6/6чт
1 stopAlaska Airlines
13h 04mBOS-SEA
$208

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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.
6/4вт
multi-stop
24h 18mBOS-SEA
6/11вт
multi-stop
22h 19mSEA-BOS
$343
6/4вт
multi-stop
24h 18mBOS-SEA
6/10пн
multi-stop
24h 16mSEA-BOS
$345
6/4вт
nonstopAlaska Airlines
6h 09mBOS-SEA
6/8сб
nonstopAlaska Airlines
5h 25mSEA-BOS
$417
6/4вт
nonstopAlaska Airlines
6h 05mBOS-SEA
6/7пт
nonstopAlaska Airlines
5h 25mSEA-BOS
$427
6/3пн
multi-stopJetBlue
8h 27mBOS-SEA
6/5ср
nonstopJetBlue
5h 29mSEA-BOS
$519
5/31пт
multi-stopJetBlue
8h 27mBOS-SEA
6/5ср
nonstopJetBlue
5h 29mSEA-BOS
$520
6/2нд
multi-stopAmerican Airlines
9h 50mBOS-SEA
6/10пн
multi-stopAmerican Airlines
8h 47mSEA-BOS
$553
6/1сб
multi-stopAmerican Airlines
10h 35mBOS-SEA
6/6чт
multi-stopAmerican Airlines
8h 28mSEA-BOS
$555
6/2нд
nonstopDelta
6h 17mBOS-SEA
6/8сб
nonstopDelta
5h 27mSEA-BOS
$602
6/2нд
nonstopDelta
6h 17mBOS-SEA
6/4вт
nonstopDelta
5h 37mSEA-BOS
$603

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Boston - Seattle Flights

Departure:

Boston (BOS)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Boston

Cabin classes:

$1,107
$1,188
$706
$226

Compare transportation modes for Boston to Seattle

Average priceAverage duration
Flights$1,0666h 17m
Buses$504h 30m