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Cheap flights from Thailand to Seattle from ฿16,415

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
17 Jun — 24 Jun1
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 18 May 2026.

Sun 14/623:30
BKK
-
SEA
1 stop29h 45m
Multiple Airlines
Sun 28/600:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 14/5฿16,415
Wed 24/621:40
BKK
-
SEA
1 stop31h 35m
Multiple Airlines
Mon 29/600:10
SEA
-
BKK
1 stop23h 25m
Multiple Airlines
Deal found 17/5฿16,870
Fri 5/609:50
BKK
-
SEA
1 stop19h 25m
Multiple Airlines
Fri 4/900:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 15/5฿17,390
Wed 15/721:40
BKK
-
SEA
1 stop32h 05m
Multiple Airlines
Sun 27/900:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 14/5฿18,658
Wed 22/723:30
BKK
-
SEA
1 stop30h 15m
Multiple Airlines
Fri 21/800:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 13/5฿18,756
Sun 31/502:35
BKK
-
SEA
1 stop26h 40m
Multiple Airlines
Tue 15/900:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 18/5฿19,406
Sun 31/502:35
BKK
-
SEA
1 stop26h 40m
Multiple Airlines
Mon 31/800:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 15/5฿19,503
Mon 15/621:40
BKK
-
SEA
1 stop31h 35m
Multiple Airlines
Tue 30/600:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 14/5฿20,771
Thu 22/1011:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Sun 25/1001:10
SEA
-
CNX
1 stop19h 15m
China Airlines
Deal found 15/5฿28,637
Thu 25/611:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Mon 31/801:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 14/5฿28,767
Thu 9/717:20
CNX
-
SEA
1 stop37h 15m
STARLUX Airlines
Tue 8/901:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 14/5฿29,092
Tue 23/617:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Tue 1/901:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 14/5฿29,157

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 18 May 2026.

Round-trip from

฿16,415

Popular in

July

Cheapest in

March

Average price

฿28,800
14/6-28/6
  • 14/6-28/6
  • 2 total stops
  • 63h 10m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (฿120,426 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿18,079 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 18 May 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

Sat 13/6

02:35-13:25

1 stop24h 50m

Seattle/Tacoma Intl

Fri 4/9

13:00-21:45

1 stop18h 45m

฿27,142

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 13/6

15:45-01:13

2 stops23h 28m

Seattle/Tacoma Intl

Fri 4/9

16:30-04:35

1 stop22h 05m

฿27,500

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

19:28-09:35

2 stops24h 07m

฿27,597

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 24/6

07:00-19:18

2 stops26h 18m

Seattle/Tacoma Intl

Thu 3/9

18:52-09:35

2 stops24h 43m

฿28,150

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 24/6

07:00-19:18

2 stops26h 18m

Seattle/Tacoma Intl

Sat 5/9

16:34-09:35

2 stops27h 01m

฿28,150

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 25/6

07:00-01:15

2 stops32h 15m

Seattle/Tacoma Intl

Mon 7/9

16:30-04:35

1 stop22h 05m

฿28,182

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

07:00-19:03

2 stops26h 03m

Seattle/Tacoma Intl

Sat 25/7

06:00-23:55

2 stops27h 55m

฿28,247

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

15:45-01:29

2 stops23h 44m

Seattle/Tacoma Intl

Sat 5/9

15:30-09:35

3 stops28h 05m

฿28,312

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/11

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Thu 12/11

00:10-22:00

1 stop30h 50m

฿28,475

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 22/10

11:20-19:15

1 stop21h 55m

Seattle/Tacoma Intl

Sun 25/10

01:10-10:25

1 stop19h 15m

฿28,637

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 52 resultsSorted by cheapest first
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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

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 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 ฿16,740). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿23,891). 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.

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 18 May 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

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
EVA Air
8.5
Very Good
1,453 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
Asiana Airlines
8.1
Very Good
534 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
เดลต้า
7.9
Good
8,450 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
Philippine Airlines
7.3
Good
998 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Food

8.7

Boarding

9.0

Overall

8.9

Crew

9.2

Comfort

8.9

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

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 ฿28,637, เดลต้า can have you in Seattle from Thailand in 21h 55m. The distance from Thailand to Seattle is about 11571 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?

    ฿12,936 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 ฿14,010 and ฿15,266, 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 ฿16,740). Flying from Thailand to Seattle in November is currently the most expensive (average of ฿23,891). 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 18 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,973Average฿22,303FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
China AirlinesCheapest฿21,701Average฿26,170FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Asiana AirlinesCheapest฿21,793Average฿23,689FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿23,935Average฿26,763FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿25,851Average฿29,585FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿29,724Average฿29,919FlexibilityNo 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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