SEA

Find First Class Flights from Boston to Seattle

1 adult
1 adult, First, 0 bags

KAYAK searches hundreds of travel sites at once for first class flights 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seattle, as well as popular online travel agencies
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Cheap First Class Flight Deals from Boston to Seattle

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent first class round-trip flight deals to Seattle

Thu, Sep 10 - Tue, Sep 22
American Airlines Logo
6:00 am - 12:48 pm
BOS
-
SEA
9h 48m
1 stop
American Airlines Logo
11:57 pm - 10:29 am
SEA
-
BOS
7h 32m
1 stop
$1,165American Airlines
Mon, Aug 24 - Mon, Aug 31
United Airlines Logo
6:00 pm - 11:44 pm
BOS
-
SEA
8h 44m
1 stop
United Airlines Logo
11:00 pm - 9:36 am
SEA
-
BOS
7h 36m
1 stop
$1,167United Airlines
Thu, Oct 22 - Tue, Oct 27
American Airlines Logo
5:24 am - 12:26 pm
BOS
-
SEA
10h 02m
1 stop
American Airlines Logo
1:17 am - 3:02 pm
SEA
-
BOS
10h 45m
1 stop
$1,189American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
6:14 am - 12:34 pm
BOS
-
SEA
9h 20m
1 stop
American Airlines Logo
11:56 pm - 10:32 am
SEA
-
BOS
7h 36m
1 stop
$1,199American Airlines
Tue, Oct 27 - Tue, Nov 3
American Airlines Logo
6:52 am - 12:26 pm
BOS
-
SEA
8h 34m
1 stop
American Airlines Logo
12:59 am - 11:28 am
SEA
-
BOS
7h 29m
1 stop
$1,202American Airlines
Sat, Jul 18 - Mon, Jul 27
American Airlines Logo
6:31 pm - 12:52 am
BOS
-
SEA
9h 21m
1 stop
American Airlines Logo
11:56 pm - 10:28 am
SEA
-
BOS
7h 32m
1 stop
$1,210American Airlines
Thu, Jul 30 - Sat, Sep 5
American Airlines Logo
6:30 pm - 12:52 am
BOS
-
SEA
9h 22m
1 stop
American Airlines Logo
11:56 pm - 10:32 am
SEA
-
BOS
7h 36m
1 stop
$1,213American Airlines
Wed, Jul 8 - Fri, Jul 17
American Airlines Logo
6:30 pm - 12:52 am
BOS
-
SEA
9h 22m
1 stop
American Airlines Logo
11:56 pm - 10:28 am
SEA
-
BOS
7h 32m
1 stop
$1,241American Airlines
Wed, Sep 9 - Fri, Sep 18
American Airlines Logo
6:00 am - 12:48 pm
BOS
-
SEA
9h 48m
1 stop
American Airlines Logo
11:57 pm - 12:08 pm
SEA
-
BOS
9h 11m
1 stop
$1,249American Airlines
Sat, Jul 4 - Tue, Jul 7
American Airlines Logo
3:28 pm - 12:52 am
BOS
-
SEA
12h 24m
1 stop
American Airlines Logo
11:56 pm - 10:28 am
SEA
-
BOS
7h 32m
1 stop
$1,255American Airlines

Good to Know - First Class Flights from Boston to Seattle

Low seasonJanuary
Cheapest flight$552
Average price round-trip$1,557
Good deal round-trip$1,407
Good deal one-way$1,000
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Boston to Seattle
(avg. price over the last 2 weeks)
or less
or less

When to book first class flights to Seattle

Are your dates flexible? We break down the daily and monthly prices for first class flights to Seattle, so you can find the best time to fly.
Average price per month
Flight prices as travel date approaches

KAYAK’s Insights & Trends for Boston to Seattle First Class Flights

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 is the cheapest month to fly First Class 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 First Class flights from Boston to Seattle is December, where tickets cost $1,309 (round-trip) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,764 and $1,737 respectively.

Which airlines offer First Class tickets between Boston and Seattle?

There are 5 airlines that fly First Class from Boston to Seattle. They are: Delta, Hawaiian Airlines, United Airlines, American Airlines and Alaska Airlines. The cheapest price of all airlines flying this route was found with Delta at $527 for a round-trip flight. On average, the best prices for flying First Class on this route can be found at United Airlines.

FAQs for First Class Boston to Seattle Flights

  • How much is a first class ticket from Boston to Seattle?

    The price of a first class flight ticket between Boston and Seattle depends on many factors, like when the ticket was booked, the departure date, season and much more. The average price for all bookings made on KAYAK for this route over the last 2 weeks is $1,557 for a round-trip.

  • Is it cheaper to fly business or first class between Boston and Seattle?

    Business Class tickets are usually cheaper, but that's not the case for this route, with an average return fare of $1,840, compared to $1,557 for First Class.

  • What is the best airline when flying first class between Boston and Seattle?

    The highest-rated airline by KAYAK users offering first class flights for this route is Alaska Airlines, with an overall rating of 7.9.

KAYAK's Tips for Finding Cheap First Class Flights from Boston to Seattle

  • What’s a good price for a first class ticket between Boston and Seattle? 25% of our users found flights on this route for $878 or less one-way and $1,487 or less round-trip.
  • Try flying direct if you’re looking to save, as direct first class tickets are cheaper on average.

Reviews of the Top 5 Airlines Flying First Class from Boston to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Boston to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly first class 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.
7.9
Alaska AirlinesOverall score based on 12429 reviews
8.1Boarding
7.1Food
7.8Comfort
7.0Entertainment
8.5Crew
Airline reviews

It was efficient and great. DIA took a while to let us leave but other than that it was great.

8.0 ExcellentAnonymous, May 2026
DEN - SEA
Read more Alaska Airlines reviews

It was efficient and great. DIA took a while to let us leave but other than that it was great.

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

The flight was smooth, the crew was great but the plane was quite old

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

The entire crew had everything handled and truly worked together. More than once, I saw them hustle down the aisle and back just to serve customers.

The flight was great. But the problem is we actually booked a flight with Hawaiian Airlines. We even received a Hawaiian Airlines confirmation number. So this made it really difficult to check in the online. So I had to call Hawaiian Airlines to get our Alaskan Airlines confirmation code to check in. Also weren’t told we were flying on Alaskan, but once we got on the plane, everything went well!

I understand that both Hawaiian and Alaskan are in the process of merging but I could not get real-time flight info or access my boarding pass on either app

First class ticket. They ran out of food and I sat hungry watching the others eat

Agents talk too fast over intercom. I know it’s memorized and we’ve all heard it before. Just slow down a little. Stop charging for checked bags. I was pleased to get my bags promptly at each end of my flight.

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight did not have onboard charging and TV screen flickering.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was easy. Provided drinks and snacks. Good aircraft and staff

Not very happy because of the long delaying which causes our luggages were not on the connection flight and nearly missed our connection flight.

JetBlue was good. Kayak offered us a deal if we bundled the rental car. This was a complete scam. Kayak said the total was $222... but when we went to pick up the car the agent at Rent a wreck said that we had to pay "fees and taxes" for a grand total of $750. I would recommend not using kayak or rent a wreck. They are both complicit in this scam. JetBlue worked out well.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

Everything you need to know for your flight to Seattle

Cabin class types available on flights from Boston to Seattle

Cabin classes available on flights from Boston to Seattle. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.