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SEA - BKK

$585 Find cheap flights from Seattle to Bangkok Suvarnabhumi Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Bangkok departing on 5/1. 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
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights to Bangkok Suvarnabhumi Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Bangkok.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Bangkok.
In the last 7 days travelers have searched 44,335,567 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Bangkok (SEA-BKK)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Bangkok 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
6:40 pm - 6:05 amSEA-BKK
45h 25m1 stop
10:50 pm - 4:45 pmBKK-SEA
31h 55m1 stop
$1,012Turkish Airlines
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Mon, May 6 - Mon, May 13
6:40 pm - 3:25 pmSEA-BKK
30h 45m1 stop
11:05 pm - 4:45 pmBKK-SEA
31h 40m1 stop
$1,031Turkish Airlines
Find Deal
Wed, May 8 - Wed, May 22
6:15 am - 11:35 pmSEA-BKK
27h 20m2 stops
9:50 am - 1:55 pmBKK-SEA
18h 05m1 stop
$1,084Korean Air
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Mon, Apr 29 - Tue, May 14
2:20 pm - 11:10 pmSEA-BKK
18h 50m1 stop
1:10 am - 12:45 pmBKK-SEA
25h 35m1 stop
$1,097Asiana Airlines
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Mon, Apr 29 - Thu, May 9
2:20 pm - 11:10 pmSEA-BKK
18h 50m1 stop
2:00 am - 12:45 pmBKK-SEA
24h 45m1 stop
$1,098Asiana Airlines
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Sat, May 4 - Thu, May 16
12:20 pm - 1:20 pmSEA-BKK
35h 00m1 stop
9:50 am - 1:55 pmBKK-SEA
18h 05m1 stop
$1,151Korean Air
Find Deal
Mon, May 6 - Thu, May 9
5:30 pm - 1:15 pmSEA-BKK
29h 45m2 stops
9:50 am - 1:55 pmBKK-SEA
18h 05m1 stop
$1,165Delta
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Mon, May 6 - Thu, May 23
7:30 pm - 1:15 pmSEA-BKK
27h 45m2 stops
9:50 am - 1:55 pmBKK-SEA
18h 05m1 stop
$1,169Delta
Find Deal
Mon, May 6 - Tue, May 21
4:40 pm - 4:35 amSEA-BKK
21h 55m1 stop
9:35 am - 2:25 pmBKK-SEA
18h 50m1 stop
$1,181ANA
Find Deal
Mon, May 6 - Tue, May 21
4:40 pm - 4:35 amSEA-BKK
21h 55m1 stop
9:35 pm - 9:34 pmBKK-SEA
37h 59m2 stops
$1,188ANA
Find Deal
Mon, Apr 29 - Wed, May 1

Flights from Seattle to Bangkok - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Bangkok 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 Seattle to Bangkok Suvarnabhumi Airport?

The average price of all flights from Seattle to Bangkok Suvarnabhumi Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Bangkok Suvarnabhumi Airport, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Bangkok Suvarnabhumi Airport, Tuesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from Seattle to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Bangkok Suvarnabhumi Airport, 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 Seattle to Bangkok Suvarnabhumi Airport is March, where tickets cost $994 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $1,773 and $1,580 respectively.

How far in advance should I book a flight from Seattle to Bangkok Suvarnabhumi Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Bangkok Suvarnabhumi Airport, 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 Seattle to Bangkok Suvarnabhumi Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 81 days before departure.

Which airlines provide the cheapest flights from Seattle to Bangkok Suvarnabhumi Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Korean Air ($602) and Qatar Airways ($622). The cheapest round-trip tickets were found on Turkish Airlines ($1,012) and Korean Air ($1,084).

Good to know

Low season

June

High season

November

Cheapest flight

$585
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Seattle to Bangkok Suvarnabhumi Airport

When to book flights from Seattle to Bangkok

Are your dates flexible? Find out the best times to travel from Seattle to Bangkok 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 Seattle to Bangkok Suvarnabhumi Airport flights

  • What is the cheapest flight from Seattle to Bangkok Suvarnabhumi Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Bangkok Suvarnabhumi Airport was $585 for a one-way ticket and $1,012 for a round-trip.

  • Do I need a passport to fly between Seattle and Bangkok Suvarnabhumi Airport?

    Yes, you’ll need a passport to travel to Bangkok Suvarnabhumi Airport from Seattle.

  • Which aircraft models fly most regularly from Seattle to Bangkok Suvarnabhumi Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Bangkok Suvarnabhumi Airport?

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

  • What is the most popular layover when flying to Bangkok Suvarnabhumi Airport from Seattle?

    Incheon is the most popular layover city among KAYAK users traveling from Seattle to Bangkok Suvarnabhumi Airport.

  • Which is the best airline for flights from Seattle to Bangkok, Korean Air or ANA?

    The two airlines most popular with KAYAK users for flights from Seattle to Bangkok are Korean Air and ANA. With an average price for the route of $1,221 and an overall rating of 8.5, Korean Air is the most popular choice. ANA is also a great choice for the route, with an average price of $1,124 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Seattle to Bangkok Suvarnabhumi Airport?

    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 Seattle to Bangkok Suvarnabhumi Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok Suvarnabhumi Airport from Seattle 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 Seattle to Bangkok Suvarnabhumi Airport?

    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 Bangkok Suvarnabhumi Airport with an airline and back to Seattle with another airline. Booking your flights between Seattle and BKK 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 Seattle to Bangkok Suvarnabhumi Airport?

    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 Bangkok Suvarnabhumi Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Seattle to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Bangkok. 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 Seattle to Bangkok? 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.
8.5
Korean AirOverall score based on 1188 reviews
8.6boarding
8.3comfort
8.2entertainment
8.2food
8.8crew
Airline reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

10.0 ExcellentAnonymous, Apr 2024IAD - ICN
Read more about Korean Air reviews

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

not too bad but not too great either. Service on all airlines declined ever since covid. Your Delta Stewardess are not that friendly at all. :-(

You did not put me on a Korean Air flight! so I do not have nothing to say

My flight was diverted to Atlanta and I was not given enough time. I paid my travel on April 23, 2023. It was originally Delta from Norfolk to NY, then Korean Air from NY all the way Philippines which is my final stop. Instead from Atlanta to Korea I flew Delta which is okay. Then Korea to Philippines, I flew Asiana Airlines. What I did not like, Ieagle did not sent me an email that my flight was change and so when I went to check in Wednesday the 10th, at 4:30 a.m they told me my flight was delayed at 6;00 p.m and diverted in Atlanta and I am flying Asiana from Korea to Philippines. I do not appreciate that Kayak or Ieagle chenge our flights 5 times and then last minute change again during my day of flight. I hope that you will not make any changes of my flight o Feb 15th because it has to be the same flight with my husband. That is the reason why we made the arrangements early on.

Wonderful cabin crew!!!!! Food was poor, in flight entertainment was just ok. They need to serve more water on a 15 hour flight--we were dehydrated and kept asking for water.

Going through security a third time to get on the next flight was again utterly ridiculous and unnecessary. We were in a International secure area once again and as far as I'm concerned should not have been put through the gears for absolutely no reason. The United States can get all the information they need from the travel itinerary, there was no need to be forced out of a secure area to personally interview everyone on a connecting flight to find out their US immigration status.

Flight arrived early, fantastic, since it is short flight, no food being served

Always fly with Korean Airlines. Best service great food. Nice and clean as always.

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Boarding is fast and easy for economy class, food was ok baggage policies are good

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Very uncomfortable and crowded seats in economy. Flight attendant refused request to move to nearby unused seat with more legroom because “It was more money for that seat”. It was also near impossible to reach airline directly by phone. Waits upwards of an hour and not very helpful customer service representatives after long wait. Cannot recommend this airline.

Staff was excellent. Food could use more variety. -More vegetable options. Menu didn't have juice or soda listed. -The croissants were outstanding!

Asian Vegitarian food was test less No Salt or pepper served Need to improve with Chef who can caters for Peaple from India I am sure Chef knows different varieties of food Indian People like

Flight attendants rude, they disappear for almost 3 hours not doing rounds to see what people needed. The laboratories were full of empty water cups, because they never come back to collect them.

The flight attendant, where kind of rude, there where hiding for almost 3 hours, without doing rounds to see if people needed water or pickup the water cups, the toilets were full of water cups, because they never come back to pick them up.

Flew on an Airbus 350-900. Excellent aircraft properly cleaned and serviced. Flight crew was excellent plane departed and arrived on time. The A350 has excellent air circulation far better than the 777. I would recommend Asiana to anyone looking to fly in a clean comfortable environment. This is my second round trip flight from New York to Bangkok via Asiana and I will book Asiana again!

Amazing service and fabulous syaff. Loved the jumbo jet too, comfortable.

I could not choose my seat prior to check in

JetBlue's check-in was great, but there was an in-flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'NO, bathrooms are locked! Go back to your seat!' The JetBlue flight was more than an hour delay, which made me almost miss my connecting flight with Asiana. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them more than 30 mins to get a hold of maintenance and for maintenance to get started. The Asiana flight and crew were wonderful, in general. They waited for us who were delayed from the previous flight before they took off and were very kind to take my checked baggage's info. Seats were a little uncomfortable for such long flight, but service and flight attendants were great! However, my 3 checked baggages are missing! They're lost somewhere in the transition. I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all still missing! I and the CEB airport crew have sent multiple emails to both JetBlue and Asiana, and neither has responded to any of our emails. Although, I was able to get in contact with JetBlue's Interline Department who confirmed that the bags were turned over to Asiana without confirmation details.

The full flat bed was not that comfortable, hard and lumpy., too much space wasted with those bulky walls and divisions instead of making the bed 3-4 inches wider. The compartment where you put your feet is like a shoebox, poor design. Toilets of A350 are just too small, sink is too small

Airfare was ok . Food not good , seat ok but not comfortable. Lay over too long , crew was ok Overall just ok

Good flight. The food was served a bit late, hence a hurry to finish before landing. Excellent crew and service

Great to have actual hot tastey meal on a flight. Well done

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

I requested an aisle seat and got a middle seat The flight gate was changed and the flight was delayed

It was a great flight Food was great Crew was spectacular

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

Seating cramped; close to toilet, foul smelling and noisy, very unhygienic and disease risk Free and paid Wi-Fi NOT accessible at all - misleading advertising Very expensive sunglasses disappeared from back seat pouch. Coffee disgusting and cold

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

Due to the delay of my first flight, my connecting flight with JetBlue was canceled by Singapore Airlines, but the JetBlue crew was very accommodating and rebooked a seat for me. The crew was very nice and had good attitude.

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

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

Book cheap flights from Seattle to Bangkok

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Bangkok found on KAYAK in the last 72 hours.
5/1Wed
2 stops
32h 30mSEA-BKK
$585
5/2Thu
1 stopKorean Air
18h 45mSEA-BKK
$602
5/4Sat
1 stopAsiana Airlines
18h 50mSEA-BKK
$645
4/30Tue
1 stopANA
21h 55mSEA-BKK
$651
5/2Thu
1 stopDelta
34h 15mSEA-BKK
$652
4/29Mon
1 stopANA
21h 55mSEA-BKK
$653
5/6Mon
2 stopsDelta
25h 30mSEA-BKK
$656
5/3Fri
1 stopAsiana Airlines
20h 20mSEA-BKK
$657
7/19Fri
1 stopEVA Air
19h 00mSEA-BKK
$766
7/7Sun
1 stopEVA Air
31h 20mSEA-BKK
$799

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Last minute flights from Seattle to Bangkok

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 Seattle to Bangkok that are departing in the next 10 days.
5/1Wed
multi-stop
32h 30mSEA-BKK
5/31Fri
multi-stop
23h 30mBKK-SEA
$1,048
4/29Mon
multi-stopKorean Air
27h 20mSEA-BKK
5/14Tue
multi-stopKorean Air
18h 05mBKK-SEA
$1,084
4/29Mon
multi-stopAsiana Airlines
18h 50mSEA-BKK
5/9Thu
multi-stopAsiana Airlines
25h 35mBKK-SEA
$1,097
4/30Tue
multi-stopDelta
35h 05mSEA-BKK
5/7Tue
multi-stopDelta
37h 22mBKK-SEA
$1,175
4/28Sun
multi-stopAsiana Airlines
20h 20mSEA-BKK
5/11Sat
multi-stopAsiana Airlines
24h 45mBKK-SEA
$1,185
4/29Mon
multi-stopDelta
25h 30mSEA-BKK
5/10Fri
multi-stopDelta
30h 15mBKK-SEA
$1,209
4/28Sun
multi-stopEVA Air
19h 45mSEA-BKK
5/14Tue
multi-stopEVA Air
21h 10mBKK-SEA
$1,529
4/28Sun
multi-stopEVA Air
18h 55mSEA-BKK
5/10Fri
multi-stopEVA Air
21h 10mBKK-SEA
$1,566
5/1Wed
multi-stopSingapore Airlines
27h 01mSEA-BKK
5/31Fri
multi-stopSingapore Airlines
40h 44mBKK-SEA
$1,815
4/28Sun
multi-stopSingapore Airlines
29h 01mSEA-BKK
5/4Sat
multi-stopSingapore Airlines
38h 25mBKK-SEA
$1,878

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Seattle - Bangkok Suvarnabhumi Airport Flights

Departure:

Seattle (SEA)United States

Destination:

Bangkok Suvarnabhumi Airport (BKK)Thailand

Return flight deals:

Bangkok Suvarnabhumi Airport - Seattle

Cabin classes: