Cheap flights from Bangkok to Seattle from ฿13,805
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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
10 Jan — 17 Jan1
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 February or December, booked 65 days in advance, depart on a Monday or Thursday and return on a Tuesday
Cheap 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 11 December 2025.
Thu 25/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Thu 22/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 9/12฿20,643
Mon 15/1201:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 13/110:00SEA - BKK
1 stop37h 20mไห่หนานแอร์ไลน์
Deal found 8/12฿20,866
Wed 17/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Tue 13/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 8/12฿21,152
Wed 17/1211:10BKK - SEA
2 stops35h 55mไห่หนานแอร์ไลน์
Tue 13/110:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 8/12฿21,470
Thu 18/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Tue 13/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿21,788
Mon 15/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Sun 11/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿22,520
Thu 18/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Sun 11/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿22,838
Thu 25/1213:20BKK - SEA
1 stop20h 20mMultiple Airlines
Thu 22/110:05SEA - BKK
2 stops33h 00mMultiple Airlines
Deal found 9/12฿23,347
Fri 19/1216:20BKK - SEA
1 stop30h 40mไห่หนานแอร์ไลน์
Tue 13/110:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 8/12฿24,174
Fri 19/1217:15BKK - SEA
1 stop15h 55mEVA Air
Sat 10/123:30SEA - BKK
1 stop20h 40mEVA Air
Deal found 7/12฿24,778
Wed 17/1211:10BKK - SEA
2 stops35h 55mMultiple Airlines
Tue 13/106:00SEA - BKK
2 stops32h 00mMultiple Airlines
Deal found 8/12฿25,160
Thu 11/1206:55DMK - SEA
2 stops25h 35mMultiple Airlines
Wed 17/1200:10SEA - DMK
2 stops31h 30mMultiple Airlines
Deal found 10/12฿34,320
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 11 December 2025.
Mon 23/323:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Thu 30/423:10SEA - BKK
1 stop33h 30mPhilippine Airlines
Deal found 7/12฿22,520
Mon 1/609:35BKK - SEA
1 stop18h 50mUnited Airlines
Wed 16/908:35SEA - BKK
2 stops25h 20mUnited Airlines
Deal found 9/12฿25,096
Thu 16/421:40BKK - SEA
1 stop30h 20mเดลต้า
Sun 12/712:45SEA - BKK
1 stop19h 00mเดลต้า
Deal found 10/12฿25,796
Tue 27/109:20DMK - SEA
2 stops24h 56mMultiple Airlines
Sun 8/208:45SEA - DMK
1 stop22h 25mMultiple Airlines
Deal found 8/12฿30,504
Sat 30/523:40BKK - SEA
1 stop34h 25mPhilippine Airlines
Wed 24/623:10SEA - BKK
1 stop33h 30mPhilippine Airlines
Deal found 9/12฿22,902
Mon 1/609:35BKK - SEA
2 stops25h 13mUnited Airlines
Tue 1/906:30SEA - BKK
2 stops27h 25mUnited Airlines
Deal found 9/12฿25,414
Thu 12/323:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Sun 15/322:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 8/12฿23,856
Tue 14/415:40BKK - SEA
2 stops41h 58mUnited Airlines
Sun 12/716:30SEA - BKK
1 stop22h 05mUnited Airlines
Deal found 10/12฿25,510
Wed 6/515:40BKK - SEA
2 stops42h 05mUnited Airlines
Wed 13/517:45SEA - BKK
2 stops44h 50mUnited Airlines
Deal found 9/12฿25,510
Thu 25/1209:20DMK - SEA
2 stops23h 10mMultiple Airlines
Thu 22/109:55SEA - DMK
2 stops25h 50mMultiple Airlines
Deal found 9/12฿37,660
Sun 21/1207:45DMK - SEA
1 stop25h 25mMultiple Airlines
Fri 9/112:30SEA - DMK
2 stops20h 45mMultiple Airlines
Deal found 10/12฿40,332
Tue 6/120:10DMK - SEA
3 stops37h 55mMultiple Airlines
Tue 13/112:20SEA - DMK
1 stop23h 25mMultiple Airlines
Deal found 9/12฿49,906
Thu 4/623:55DMK - SEA
1 stop24h 45mMultiple Airlines
Sun 21/613:30SEA - DMK
1 stop23h 10mMultiple Airlines
Deal found 9/12฿57,445
Mon 1/623:55DMK - SEA
1 stop24h 45mMultiple Airlines
Sun 21/613:30SEA - DMK
1 stop23h 10mMultiple Airlines
Deal found 9/12฿60,498
Mon 1/623:55DMK - SEA
1 stop24h 45mMultiple Airlines
Wed 24/613:30SEA - DMK
1 stop23h 10mMultiple Airlines
Deal found 9/12฿60,784
Last-minute flights from Bangkok to Seattle
Discover last-minute flight deals from Bangkok to Seattle. Data last updated 11 December 2025 and is based on user searches.
Mon 15/1201:05BKK - SEA
1 stop21h 55mไห่หนานแอร์ไลน์
Tue 13/110:00SEA - BKK
1 stop37h 20mไห่หนานแอร์ไลน์
Deal found 8/12฿20,866
Mon 15/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Sun 11/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿22,520
Wed 17/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Tue 13/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 8/12฿21,152
Wed 17/1211:10BKK - SEA
2 stops35h 55mไห่หนานแอร์ไลน์
Tue 13/110:00SEA - BKK
1 stop22h 25mไห่หนานแอร์ไลน์
Deal found 8/12฿21,470
Thu 18/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Tue 13/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿21,788
Thu 18/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Wed 14/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿22,838
Thu 25/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Thu 22/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 9/12฿20,643
Thu 25/1213:20BKK - SEA
1 stop20h 20mMultiple Airlines
Thu 22/110:05SEA - BKK
2 stops33h 00mMultiple Airlines
Deal found 9/12฿23,347
Thu 22/113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Thu 29/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 8/12฿21,725
Fri 23/113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Fri 30/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 9/12฿22,806
Tue 27/113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Sun 8/221:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 8/12฿21,566
Tue 27/109:20DMK - SEA
2 stops24h 56mMultiple Airlines
Sun 8/208:45SEA - DMK
1 stop22h 25mMultiple Airlines
Deal found 8/12฿30,504
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 11 December 2025.
Wed 21/117:40BKK - SEA
1 stop36h 25mSTARLUX Airlines
Deal found 9/12฿13,805
Thu 22/113:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 9/12฿13,836
Wed 21/123:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Deal found 9/12฿14,091
Mon 16/223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Deal found 9/12฿14,154
Mon 6/400:40BKK - SEA
1 stop22h 20mไห่หนานแอร์ไลน์
Deal found 9/12฿14,250
Mon 16/213:45BKK - SEA
1 stop16h 20mSTARLUX Airlines
Deal found 9/12฿14,345
Wed 25/213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 9/12฿14,377
Thu 12/213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Deal found 9/12฿14,409
Tue 13/117:40BKK - SEA
1 stop36h 25mSTARLUX Airlines
Deal found 10/12฿14,441
Thu 12/209:20DMK - SEA
2 stops24h 20mMultiple Airlines
Deal found 9/12฿14,536
Wed 11/219:10BKK - SEA
2 stops27h 55mไห่หนานแอร์ไลน์
Deal found 10/12฿14,600
Mon 19/110:40BKK - SEA
2 stops47h 00mMultiple Airlines
Deal found 9/12฿14,727
Find 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 11 December 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 11 December 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
Mon 23/3
23:50-19:40
1 stop33h 50m
Seattle/Tacoma Intl
Thu 30/4
23:10-22:40
1 stop33h 30m
฿22,520
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Sat 30/5
23:40-20:05
1 stop34h 25m
Seattle/Tacoma Intl
Wed 24/6
23:10-22:40
1 stop33h 30m
฿22,902
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Thu 12/3
23:50-19:40
1 stop33h 50m
Seattle/Tacoma Intl
Sun 15/3
22:30-12:00
1 stop23h 30m
฿23,856
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Mon 1/6
09:35-14:25
1 stop18h 50m
Seattle/Tacoma Intl
Wed 16/9
08:35-23:55
2 stops25h 20m
฿25,096
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Mon 1/6
09:35-20:48
2 stops25h 13m
Seattle/Tacoma Intl
Tue 1/9
06:30-23:55
2 stops27h 25m
฿25,414
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Tue 14/4
15:40-19:38
2 stops41h 58m
Seattle/Tacoma Intl
Sun 12/7
16:30-04:35
1 stop22h 05m
฿25,510
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Wed 6/5
15:40-19:45
2 stops42h 05m
Seattle/Tacoma Intl
Wed 13/5
17:45-04:35
2 stops44h 50m
฿25,510
BangkokSeattle
BKK - SEA
BKKSEA
Bangkok Suvarnabhumi
Thu 16/4
21:40-14:00
1 stop30h 20m
Seattle/Tacoma Intl
Sun 12/7
12:45-21:45
1 stop19h 00m
฿25,796
BangkokSeattle
DMK - SEA
DMKSEA
Bangkok Don Mueang Intl
Tue 27/1
09:20-19:16
2 stops24h 56m
Seattle/Tacoma Intl
Sun 8/2
08:45-22:10
1 stop22h 25m
฿30,504
BangkokSeattle
DMK - SEA
DMKSEA
Bangkok Don Mueang Intl
Thu 25/12
09:20-17:30
2 stops23h 10m
Seattle/Tacoma Intl
Thu 22/1
09:55-02:45
2 stops25h 50m
฿37,660
Flights are sorted by cheapest return flights first.
Deals found on 9/12
Showing 1-10 of 37 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 5 December 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 ฿19,848). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿25,446). 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 11 December 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.
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 11 December 2025.
Read through reviews of airlines operating flights from Bangkok to Seattle, such as STARLUX Airlines, EVA Air, andChina Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Starlux Airlines was amazing. No complaints on anything with them
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 and United Airlines can get you from Bangkok to Seattle in just under 18h 50m. Your travel time can differ by up to 15h. Bangkok and Seattle are separated by a distance of 11978 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Bangkok to Seattle round-trip?
According to our current data, Philippine Airlines (฿20,423), STARLUX Airlines (฿23,478), and China Airlines (฿23,775) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 27% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Bangkok to Seattle one-way?
One-way options have recently been found by users for as low as ฿12,658 on Philippine Airlines. Other airlines that offer cheap prices include China Airlines from ฿14,871 and STARLUX Airlines from ฿15,516 one-way.
Can I find deals for flights from Bangkok to Seattle that include hotel bookings?
Yes. In addition to deals on Bangkok to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Bangkok to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Seattle.
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 ฿19,848). Flying from Bangkok to Seattle in July is currently the most expensive (average of ฿25,446). 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 11 December 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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