Cheap flights from Bangkok to Seattle from ฿13,450
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
9 Dec — 16 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to Seattle/Tacoma Intl are usually found in November or October, booked 65 days in advance, depart on a Monday or Thursday and return on a Tuesday
Find flight deals from Bangkok to Seattle
Enter your travel dates to find the best prices.
Cheapest flights from Bangkok to Seattle
Explore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2025.
Mon 22/1201:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 30/1210:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 7/11฿20,725
Wed 24/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 31/1221:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 9/11฿21,113
Wed 12/1113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 19/1121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/11฿21,598
Wed 24/1223:55BKK - SEA
1 stop29h 00mMultiple Airlines
Tue 30/1200:10SEA - BKK
1 stop33h 35mMultiple Airlines
Deal found 9/11฿23,668
Tue 23/1218:45BKK - SEA
1 stop38h 55mMultiple Airlines
Tue 30/1210:00SEA - BKK
1 stop37h 20mMultiple Airlines
Deal found 7/11฿24,120
Tue 23/1217:15BKK - SEA
1 stop15h 55mEVA Air
Mon 29/1200:10SEA - BKK
1 stop20h 20mEVA Air
Deal found 7/11฿25,123
Sun 21/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Sun 28/1200:10SEA - BKK
1 stop21h 55mChina Airlines
Deal found 7/11฿25,155
Wed 12/1119:10BKK - SEA
2 stops27h 55mMultiple Airlines
Tue 18/1100:10SEA - BKK
1 stop30h 50mMultiple Airlines
Deal found 8/11฿25,252
Mon 22/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Mon 29/1200:10SEA - BKK
1 stop18h 40mChina Airlines
Deal found 7/11฿25,575
Mon 8/1206:55DMK - SEA
2 stops26h 15mMultiple Airlines
Sun 14/1200:10SEA - DMK
2 stops31h 30mMultiple Airlines
Deal found 8/11฿39,834
Tue 11/1103:10DMK - SEA
2 stops22h 30mMultiple Airlines
Wed 19/1111:15SEA - DMK
1 stop37h 15mMultiple Airlines
Deal found 8/11฿41,127
Thu 4/1206:15DMK - SEA
1 stop16h 50mMultiple Airlines
Tue 16/1211:24SEA - DMK
2 stops37h 06mMultiple Airlines
Deal found 9/11฿53,026
Best flights from Bangkok to Seattle
Discover carefully curated flight deals from Bangkok to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2025.
Wed 25/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Tue 14/423:05SEA - BKK
1 stop32h 45mPhilippine Airlines
Deal found 9/11฿22,762
Tue 10/216:55BKK - SEA
2 stops38h 34mUnited Airlines
Tue 10/316:45SEA - BKK
1 stop22h 25mUnited Airlines
Deal found 9/11฿25,705
Tue 23/1202:05BKK - SEA
1 stop21h 55mKorean Air
Wed 31/1211:00SEA - BKK
1 stop22h 55mKorean Air
Deal found 9/11฿26,125
Tue 3/323:55BKK - SEA
1 stop29h 00mAsiana Airlines
Mon 23/300:10SEA - BKK
1 stop31h 50mAsiana Airlines
Deal found 8/11฿26,222
Fri 27/302:35BKK - SEA
1 stop30h 35mChina Airlines
Mon 13/401:10SEA - BKK
1 stop21h 00mChina Airlines
Deal found 9/11฿26,384
Sat 24/109:20DMK - SEA
2 stops24h 56mMultiple Airlines
Thu 12/208:45SEA - DMK
1 stop22h 25mMultiple Airlines
Deal found 8/11฿35,469
Sun 22/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 15/423:05SEA - BKK
1 stop32h 45mPhilippine Airlines
Deal found 9/11฿22,762
Tue 24/323:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Tue 14/423:05SEA - BKK
1 stop27h 40mPhilippine Airlines
Deal found 9/11฿22,762
Tue 24/316:55BKK - SEA
3 stops39h 32mUnited Airlines
Mon 20/406:57SEA - BKK
2 stops36h 48mUnited Airlines
Deal found 9/11฿25,963
Thu 26/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 15/423:05SEA - BKK
1 stop27h 40mPhilippine Airlines
Deal found 9/11฿23,086
Fri 27/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Tue 14/423:05SEA - BKK
1 stop27h 40mPhilippine Airlines
Deal found 9/11฿23,086
Thu 26/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Tue 14/423:05SEA - BKK
1 stop27h 40mPhilippine Airlines
Deal found 9/11฿23,086
Tue 13/108:45DMK - SEA
2 stops25h 31mMultiple Airlines
Wed 21/112:30SEA - DMK
2 stops20h 45mMultiple Airlines
Deal found 8/11฿38,444
Sun 22/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Fri 17/423:05SEA - BKK
1 stop27h 40mPhilippine Airlines
Deal found 9/11฿25,931
Mon 8/1206:55DMK - SEA
2 stops26h 15mMultiple Airlines
Sun 14/1200:10SEA - DMK
2 stops31h 30mMultiple Airlines
Deal found 8/11฿39,834
Thu 4/1206:15DMK - SEA
1 stop16h 50mMultiple Airlines
Tue 16/1211:24SEA - DMK
2 stops37h 06mMultiple Airlines
Deal found 9/11฿53,026
Tue 9/1202:35DMK - SEA
2 stops26h 49mMultiple Airlines
Tue 23/1223:30SEA - DMK
1 stop29h 00mMultiple Airlines
Deal found 8/11฿55,806
Last-minute flights from Bangkok to Seattle
Discover last-minute flight deals from Bangkok to Seattle. Data last updated 9 November 2025 and is based on user searches.
Tue 11/1103:10DMK - SEA
2 stops22h 30mMultiple Airlines
Wed 19/1111:15SEA - DMK
1 stop37h 15mMultiple Airlines
Deal found 8/11฿41,127
Wed 12/1113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 19/1121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/11฿21,598
Wed 12/1119:10BKK - SEA
2 stops27h 55mMultiple Airlines
Tue 18/1100:10SEA - BKK
1 stop30h 50mMultiple Airlines
Deal found 8/11฿25,252
Thu 4/1206:15DMK - SEA
1 stop16h 50mMultiple Airlines
Tue 16/1211:24SEA - DMK
2 stops37h 06mMultiple Airlines
Deal found 9/11฿53,026
Mon 8/1206:55DMK - SEA
2 stops26h 15mMultiple Airlines
Sun 14/1200:10SEA - DMK
2 stops31h 30mMultiple Airlines
Deal found 8/11฿39,834
Sun 21/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Sun 28/1200:10SEA - BKK
1 stop21h 55mChina Airlines
Deal found 7/11฿25,155
Mon 22/1201:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 30/1210:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 7/11฿20,725
Mon 22/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Mon 29/1200:10SEA - BKK
1 stop18h 40mChina Airlines
Deal found 7/11฿25,575
Tue 23/1218:45BKK - SEA
1 stop38h 55mMultiple Airlines
Tue 30/1210:00SEA - BKK
1 stop37h 20mMultiple Airlines
Deal found 7/11฿24,120
Tue 23/1217:15BKK - SEA
1 stop15h 55mEVA Air
Mon 29/1200:10SEA - BKK
1 stop20h 20mEVA Air
Deal found 7/11฿25,123
Wed 24/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Wed 31/1221:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 9/11฿21,113
Wed 24/1223:55BKK - SEA
1 stop29h 00mMultiple Airlines
Tue 30/1200:10SEA - BKK
1 stop33h 35mMultiple Airlines
Deal found 9/11฿23,668
One-way flights from Bangkok to Seattle
Search for one-way flight options from Bangkok to Seattle. Find affordable one-way fares based on user searches. Data last updated 9 November 2025.
Fri 21/1113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 9/11฿13,450
Thu 4/1212:15BKK - SEA
3 stops37h 07mMultiple Airlines
Deal found 8/11฿13,483
Wed 17/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Deal found 7/11฿13,515
Mon 15/1212:15BKK - SEA
2 stops25h 31mMultiple Airlines
Deal found 7/11฿13,547
Sun 21/1201:45BKK - SEA
2 stops44h 22mMultiple Airlines
Deal found 6/11฿13,580
Tue 24/313:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 8/11฿13,612
Fri 14/1113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 7/11฿13,644
Fri 12/1210:40BKK - SEA
2 stops23h 00mMultiple Airlines
Deal found 9/11฿13,677
Fri 5/1201:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Deal found 7/11฿13,741
Sun 14/1212:15BKK - SEA
2 stops40h 15mMultiple Airlines
Deal found 7/11฿13,774
Sat 21/323:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Deal found 7/11฿13,806
Thu 11/1218:05BKK - SEA
2 stops27h 59mMultiple Airlines
Deal found 9/11฿13,838
Cheap flight deals from Bangkok to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 November 2025.
Customise your flight search to find flights from Bangkok to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 9 November 2025.
Use the filters below to find and compare flights from Bangkok to Seattle that are best for you.
Fly from
Bangkok
Fly to
Seattle
Route
Depart
Return
Price
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Wed 25/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Tue 14/4
23:05-21:50
1 stop32h 45m
฿22,762
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Sun 22/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Wed 15/4
23:05-21:50
1 stop32h 45m
฿22,762
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Tue 24/3
23:50-19:40
1 stop33h 50m
Seattle/Tacoma Intl
Tue 14/4
23:05-16:45
1 stop27h 40m
฿22,762
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Thu 26/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Wed 15/4
23:05-16:45
1 stop27h 40m
฿23,086
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Fri 27/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Tue 14/4
23:05-16:45
1 stop27h 40m
฿23,086
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Thu 26/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Tue 14/4
23:05-16:45
1 stop27h 40m
฿23,086
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Tue 10/2
16:55-16:29
2 stops38h 34m
Seattle/Tacoma Intl
Tue 10/3
16:45-05:10
1 stop22h 25m
฿25,705
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Sun 22/3
13:20-19:40
1 stop20h 20m
Seattle/Tacoma Intl
Fri 17/4
23:05-16:45
1 stop27h 40m
฿25,931
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Tue 24/3
16:55-18:27
3 stops39h 32m
Seattle/Tacoma Intl
Mon 20/4
06:57-09:45
2 stops36h 48m
฿25,963
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Tue 23/12
02:05-09:00
1 stop21h 55m
Seattle/Tacoma Intl
Wed 31/12
11:00-00:55
1 stop22h 55m
฿26,125
Flights are sorted by cheapest return flights first.
Deals found on 8/11
Showing 1-10 of 34 results
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Best time to book a flight from Bangkok to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Bangkok with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Bangkok to Seattle
How far ahead should I book a flight from Bangkok to Seattle?
Use this chart to determine the optimal time to book a return flight from Bangkok to Seattle. Price data was last updated on 7 November 2025.
The best time to book flights from Bangkok to Seattle is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Bangkok to Seattle?
Currently, June is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿20,176). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿25,252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BKK to SEA?
Find hourly flight availability from Bangkok to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 November 2025.
When flying from Bangkok to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 28% versus a flight in the afternoon.
What is the cheapest day to fly from Bangkok to Seattle?
Use this chart to determine the cheapest time to fly return from Bangkok to Seattle. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Bangkok to Seattle flight should consider departing on Wednesday at midday when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from Bangkok to Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 9 November 2025.
Read through reviews of airlines operating flights from Bangkok to Seattle, such as STARLUX Airlines, EVA Air, andKorean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Related info for your journey
Find useful and relevant information for your journey from Bangkok to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Seattle from Bangkok?
Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Bangkok. Booking flights from Bangkok to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Bangkok from 7 different airlines.
How long is the flight from Bangkok to Seattle?
Philippine Airlines can get you from Bangkok to Seattle in just under 20h 20m. Your travel time can differ by up to . Bangkok and Seattle are separated by a distance of 11978 km.
What are the cheapest airlines flying from Bangkok to Seattle round-trip?
According to our current data, Philippine Airlines (฿20,760), Asiana Airlines (฿22,189), and STARLUX Airlines (฿23,866) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 28% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for business class flights from Bangkok to Seattle?
Yes. Cheapflights offers flight deals from Bangkok to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Bangkok to Seattle?
Currently, June is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿20,176). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿25,252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Discover the top 7 airlines that operate flights from Bangkok to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 9 November 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Bangkok to Seattle?
Deals for Bangkok to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Bangkok to Seattle?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Seattle.
Can Cheapflights find flights from Bangkok to Seattle with no change fees?
Yes, we can. To see specific flights from Bangkok to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Bangkok to Seattle become cheaper?
Not ready to book yet? You can track prices for flights from Bangkok to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.
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