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Cheap flights from Bangkok to Seattle from ฿16,844

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
6 Jul — 13 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 6 June 2026.

Wed 21/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 5/6฿25,788
Wed 7/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Mon 19/1000:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 5/6฿25,853
Thu 18/609:35
BKK
-
SEA
2 stops43h 01m
United Airlines
Wed 9/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 3/6฿26,212
Fri 19/613:55
BKK
-
SEA
1 stop38h 30m
ANA
Thu 9/708:45
SEA
-
BKK
2 stops23h 30m
ANA
Deal found 3/6฿26,245
Mon 15/609:35
BKK
-
SEA
2 stops26h 33m
United Airlines
Tue 30/616:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 3/6฿26,310
Fri 5/607:00
BKK
-
SEA
2 stops26h 03m
United Airlines
Sat 5/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 2/6฿26,343
Mon 15/609:35
BKK
-
SEA
2 stops22h 55m
ANA
Sun 10/115:45
SEA
-
BKK
1 stop33h 35m
ANA
Deal found 4/6฿26,408
Tue 6/1009:35
BKK
-
SEA
2 stops25h 09m
United Airlines
Thu 15/1016:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 4/6฿26,473
Thu 17/909:35
BKK
-
SEA
2 stops38h 24m
United Airlines
Mon 21/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 5/6฿26,539
Wed 1/706:40
DMK
-
SEA
2 stops27h 10m
Multiple Airlines
Tue 7/702:10
SEA
-
DMK
2 stops30h 30m
Multiple Airlines
Deal found 3/6฿33,786
Wed 10/609:55
DMK
-
SEA
2 stops23h 45m
Multiple Airlines
Tue 16/600:50
SEA
-
DMK
2 stops31h 50m
Multiple Airlines
Deal found 4/6฿34,014
Tue 23/609:55
DMK
-
SEA
2 stops23h 20m
Multiple Airlines
Mon 29/601:15
SEA
-
DMK
2 stops22h 55m
Multiple Airlines
Deal found 2/6฿39,400

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 6 June 2026.

Round-trip from

฿25,788

One-way from

฿16,844

Popular in

July

Cheapest in

March

Average price

฿29,379
Asiana Airlines
  • Asiana Airlines
  • 21/10-5/11
  • 2 total stops
  • 58h 30m total
  • Bangkok to Seattle
Search Deals
Qatar Airways
  • Qatar Airways
  • 19/7
  • 1 total stop
  • 41h 10m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (฿124,024 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿17,940 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 6 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

Thu 17/9

09:35-09:59

2 stops38h 24m

Seattle/Tacoma Intl

Mon 21/9

16:30-04:35

1 stop22h 05m

฿26,539
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 4/10

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Tue 20/10

12:50-21:45

1 stop18h 55m

฿26,702

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

15:29-09:35

2 stops28h 06m

฿26,702

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/10

07:00-20:44

2 stops27h 44m

Seattle/Tacoma Intl

Mon 22/2

15:45-05:10

1 stop22h 25m

฿26,735

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 25/10

00:55-10:00

1 stop23h 05m

Seattle/Tacoma Intl

Fri 19/2

11:00-23:20

1 stop21h 20m

฿26,800

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 23/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 14/7

15:33-09:35

3 stops28h 02m

฿27,094

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Thu 22/10

07:11-23:55

2 stops26h 44m

฿27,159

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 17/7

07:00-19:38

2 stops50h 38m

Seattle/Tacoma Intl

Sun 26/7

06:00-09:35

2 stops37h 35m

฿27,453

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/10

07:00-21:01

2 stops28h 01m

Seattle/Tacoma Intl

Sun 4/10

07:11-09:35

2 stops36h 24m

฿27,551

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/6

02:40-19:15

1 stop30h 35m

Seattle/Tacoma Intl

Mon 29/6

01:15-01:25

1 stop34h 10m

฿28,856

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Showing 1-10 of 42 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 ฿16,811). Flying from Bangkok to Seattle in November is currently the most expensive (average of ฿23,993). 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 67 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 6 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

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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
1,465 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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
540 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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
8,395 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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

9.1

Overall

8.9

Boarding

8.9

Comfort

8.9

Food

8.6

Entertainment

8.8

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, Korean Air, and Emirates can get you from Bangkok to Seattle in just under 22h 05m. Your travel time can differ by up to 16h 19m. 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 (฿21,062), China Airlines (฿21,793), and Asiana Airlines (฿21,885) 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 ฿12,990 on Philippine Airlines. Other airlines that offer cheap prices include STARLUX Airlines from ฿14,069 and China Airlines from ฿15,453 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 ฿16,811). Flying from Bangkok to Seattle in November is currently the most expensive (average of ฿23,993). 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

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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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,062Average฿22,398FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,793Average฿26,281FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿21,885Average฿24,209FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,036Average฿26,642FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿25,960Average฿29,710FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿29,849Average฿30,046FlexibilityNo 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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