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Cheap flights from Bangkok to Seattle from ฿17,017

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 26/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

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 June 2026.

Sun 12/711:45
BKK
-
SEA
1 stop18h 00m
Asiana Airlines
Sun 26/700:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 11/6฿25,476
Mon 19/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop31h 50m
Asiana Airlines
Deal found 7/6฿25,838
Wed 21/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 11/6฿25,970
Fri 10/711:45
BKK
-
SEA
1 stop18h 00m
Asiana Airlines
Sun 19/700:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 9/6฿26,003
Mon 8/609:35
BKK
-
SEA
2 stops26h 33m
United Airlines
Wed 24/616:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 7/6฿26,167
Fri 19/607:00
BKK
-
SEA
2 stops27h 53m
United Airlines
Sun 5/716:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 8/6฿26,200
Thu 18/609:35
BKK
-
SEA
2 stops26h 33m
United Airlines
Fri 3/716:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 10/6฿26,299
Mon 2/1112:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Sun 29/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 11/6฿26,431
Mon 15/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Sun 10/115:30
SEA
-
BKK
2 stops28h 55m
United Airlines
Deal found 11/6฿26,496
Mon 8/609:35
BKK
-
SEA
1 stop18h 50m
ANA
Wed 24/616:30
SEA
-
BKK
1 stop22h 05m
ANA
Deal found 7/6฿26,628
Thu 9/706:40
DMK
-
SEA
2 stops26h 30m
Multiple Airlines
Wed 15/702:10
SEA
-
DMK
2 stops30h 30m
Multiple Airlines
Deal found 11/6฿33,376
Mon 12/1020:05
DMK
-
SEA
2 stops33h 10m
Multiple Airlines
Mon 9/1123:55
SEA
-
DMK
1 stop20h 45m
Multiple Airlines
Deal found 10/6฿39,333

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 June 2026.

Round-trip from

฿25,838

One-way from

฿17,017

Popular in

July

Cheapest in

March

Average price

฿28,504
Asiana Airlines
  • Asiana Airlines
  • 19/10-27/10
  • 2 total stops
  • 59h 30m total
  • Bangkok to Seattle
Search Deals
24/6
  • 24/6
  • 2 total stops
  • 40h 19m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿108,584 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿16,064 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
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 June 2026.
Use the filters below to find and compare flights from Bangkok to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 20/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 28/10

17:30-11:25

2 stops27h 55m

฿26,891

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

19:25-09:35

2 stops24h 10m

฿26,891

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 12/10

15:45-15:33

2 stops37h 48m

Seattle/Tacoma Intl

Mon 9/11

15:40-05:10

1 stop22h 30m

฿26,990

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 30/6

17:30-19:15

1 stop15h 45m

Seattle/Tacoma Intl

Thu 24/9

01:15-09:45

1 stop18h 30m

฿28,340

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 9/7

13:20-19:45

1 stop20h 25m

Seattle/Tacoma Intl

Mon 7/9

01:55-12:10

1 stop20h 15m

฿28,570

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

13:20-19:45

1 stop20h 25m

Seattle/Tacoma Intl

Tue 28/7

01:55-12:10

1 stop20h 15m

฿28,636

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 12/7

17:30-19:45

1 stop16h 15m

Seattle/Tacoma Intl

Tue 21/7

01:55-01:25

1 stop33h 30m

฿28,669
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 1/8

17:30-19:45

1 stop16h 15m

Seattle/Tacoma Intl

Sun 30/8

01:55-09:45

1 stop17h 50m

฿28,702

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 28/6

09:35-14:30

2 stops42h 55m

Seattle/Tacoma Intl

Wed 15/7

10:29-09:35

3 stops33h 06m

฿30,940

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 25/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Thu 2/7

08:45-04:35

2 stops29h 50m

฿31,137

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 43 resultsSorted by cheapest first
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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

What is the cheapest month to book a flight from Bangkok to Seattle?

Currently, October is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿16,951). Flying from Bangkok to Seattle in November is currently the most expensive (average of ฿24,192). 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.

How much does it cost for a return flight from Bangkok to Seattle?

How far ahead should I book a flight from Bangkok to Seattle?

The best time to book flights from Bangkok to Seattle is 56 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.

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 June 2026.
Read through reviews of airlines operating flights from Bangkok to Seattle, such as STARLUX Airlines,EVA Air, andAsiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
EVA Air
8.5
Very Good
1,472 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
Asiana Airlines
8.1
Very Good
541 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
เดลต้า
7.9
Good
8,403 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
Philippine Airlines
7.3
Good
999 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Boarding

8.9

Food

8.6

Overall

8.9

Entertainment

8.8

Comfort

8.9

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat

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 6 different airlines.

  • How long is the flight from Bangkok to Seattle?

    United Airlines, China Airlines, and Emirates can get you from Bangkok to Seattle in just under 15h 45m. Your travel time can differ by up to 12h 55m. 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 (฿21,237), China Airlines (฿21,974), and Asiana Airlines (฿22,067) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 25% 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 ฿13,098 on Philippine Airlines. Other airlines that offer cheap prices include STARLUX Airlines from ฿14,186 and China Airlines from ฿15,582 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, October is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿16,951). Flying from Bangkok to Seattle in November is currently the most expensive (average of ฿24,192). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 6 airlines flying from Bangkok to Seattle

Discover the top 6 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,237Average฿22,584FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,974Average฿26,500FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿22,067Average฿24,411FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,236Average฿26,863FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,176Average฿30,057FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿30,098Average฿30,296FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights

Fly with Cheapflights

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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