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Cheap flights from Thailand to Seattle from ฿16,370

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 25/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
13 Jul — 20 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Seattle
Explore the most affordable flight options available from Thailand to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 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฿25,342
Thu 22/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 10/6฿25,833
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฿25,865
Mon 19/1001:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop31h 50m
Asiana Airlines
Deal found 11/6฿25,898
Wed 17/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Fri 17/707:00
SEA
-
BKK
2 stops36h 35m
United Airlines
Deal found 11/6฿26,160
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฿26,291
Mon 15/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Sun 10/115:30
SEA
-
BKK
2 stops28h 55m
United Airlines
Deal found 12/6฿26,324
Fri 12/609:35
BKK
-
SEA
2 stops49h 18m
United Airlines
Tue 14/708:35
SEA
-
BKK
2 stops35h 00m
United Airlines
Deal found 9/6฿26,422
Tue 6/1009:35
BKK
-
SEA
2 stops27h 51m
United Airlines
Thu 15/1016:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 12/6฿26,455
Mon 2/1109:10
BKK
-
SEA
2 stops41h 23m
United Airlines
Mon 30/1115:40
SEA
-
BKK
1 stop22h 30m
United Airlines
Deal found 11/6฿26,487
Tue 13/1011:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Sat 24/1001:10
SEA
-
CNX
1 stop19h 15m
China Airlines
Deal found 13/6฿27,994
Tue 13/1017:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Tue 27/1000:45
SEA
-
CNX
1 stop25h 15m
STARLUX Airlines
Deal found 13/6฿28,124

Find flight deals from Thailand to Seattle

Keep the following information in mind while searching for Thailand to Seattle flight deals. Data was last updated 13 June 2026.

Round-trip from

฿25,342

One-way from

฿16,370

Popular in

July

Cheapest in

March

Average price

฿27,994
Asiana Airlines
  • Asiana Airlines
  • 12/7-26/7
  • 2 total stops
  • 38h 30m total
  • Thailand to Seattle
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 25/6
  • 1 total stop
  • 36h 50m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿104,225 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿15,869 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 Thailand 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 13 June 2026.
Use the filters below to find and compare flights from Thailand 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

฿26,749

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

฿26,848

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Thu 15/10

07:11-23:55

2 stops26h 44m

฿26,946

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 31/8

15:45-18:29

3 stops40h 44m

Seattle/Tacoma Intl

Tue 27/10

17:30-11:25

2 stops27h 55m

฿27,797

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

14:05-18:10

1 stop19h 05m

Seattle/Tacoma Intl

Sun 27/12

00:10-01:35

1 stop34h 25m

฿27,994

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 24/7

02:40-19:45

1 stop31h 05m

Seattle/Tacoma Intl

Tue 11/8

01:55-01:25

1 stop33h 30m

฿28,386

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 13/7

02:40-19:45

1 stop31h 05m

Seattle/Tacoma Intl

Tue 28/7

01:55-12:10

1 stop20h 15m

฿28,419

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/8

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 29/9

01:15-10:20

1 stop19h 05m

฿29,892

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 12/7

09:35-09:22

2 stops61h 47m

Seattle/Tacoma Intl

Mon 27/7

06:00-09:35

2 stops37h 35m

฿30,711

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

฿30,777

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 54 resultsSorted by cheapest first
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6

Best time to book a flight from Thailand to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Thailand 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 Thailand to Seattle

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

Currently, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿16,862). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,065). 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 far ahead should I book a flight from Thailand to Seattle?

The price you pay for your flight from Thailand to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 13 June 2026.
Read through reviews of airlines operating flights from Thailand 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

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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
8,406 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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

Food

8.6

Boarding

8.9

Overall

8.9

Crew

9.2

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 Thailand 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 Thailand?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Thailand to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

  • How long is the flight from Thailand to Seattle?

    For as low as ฿26,749, United Airlines can have you in Seattle from Thailand in 18h 50m. The distance from Thailand to Seattle is about 11978 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Thailand to Seattle one-way?

    ฿13,029 is the cheapest one-way deal found within the past few days, from Philippine Airlines. You may also be able to find cheap deals on STARLUX Airlines and China Airlines, with prices starting from ฿14,111 and ฿15,500, respectively.

  • What are the most popular routes from Thailand to Seattle?

    The most popular flight routes from Thailand to Seattle are Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Chiang Mai - Seattle/Tacoma Intl and Bangkok Don Mueang Intl - Seattle/Tacoma Intl.

  • Can I find deals for flights from Thailand to Seattle that include hotel bookings?

    Yes. In addition to deals on Thailand to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Seattle.

  • Can I find deals for business class flights from Thailand to Seattle?

    Yes. Cheapflights offers flight deals from Thailand 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 Thailand to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿16,862). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿24,065). 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 Thailand 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 Thailand to Seattle

Discover the top 6 airlines that operate flights from Thailand 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 13 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,125Average฿22,465FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,858Average฿26,360FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿21,951Average฿24,282FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,108Average฿26,722FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,038Average฿29,898FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿29,939Average฿30,136FlexibilityNo 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 Thailand to Seattle?

Cheapflights makes it easy to find Thailand to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Thailand.

Can Cheapflights find flights from Thailand to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Thailand shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Thailand to Seattle become cheaper?

Yes! Start tracking prices for Thailand to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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