Find flights
When to book
Airlines
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Thailand to Seattle from ฿13,138

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
23 Dec — 30 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Seattle

Keep the following information in mind while searching for Thailand to Seattle flight deals. Data was last updated 23 November 2025.

Round-trip from

฿19,415

One-way from

฿13,138

Popular in

July

Cheapest in

November

Average price

฿25,725
Philippine Airlines
  • Philippine Airlines
  • 17/3-7/4
  • 2 total stops
  • 66h 35m total
  • Thailand to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 21/1
  • 1 total stop
  • 33h 50m total
  • Thailand to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿103,717 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿19,182 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 23 November 2025.

Mon 22/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Wed 7/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 21/11฿20,710
Sat 20/1211:20BKK - SEA
1 stop21h 50mEVA Air
Tue 20/100:10SEA - BKK
1 stop20h 00mEVA Air
Deal found 21/11฿24,787
Fri 19/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Tue 20/100:10SEA - BKK
1 stop21h 55mChina Airlines
Deal found 21/11฿25,143
Mon 22/1212:15BKK - SEA
2 stops33h 52mMultiple Airlines
Wed 7/112:30SEA - BKK
1 stop36h 55mMultiple Airlines
Deal found 21/11฿25,175
Fri 19/1202:35BKK - SEA
1 stop30h 35mMultiple Airlines
Wed 21/121:30SEA - BKK
1 stop29h 20mMultiple Airlines
Deal found 21/11฿25,467
Sun 7/1202:15BKK - SEA
2 stops24h 09mMultiple Airlines
Mon 8/1219:21SEA - BKK
2 stops24h 49mMultiple Airlines
Deal found 22/11฿27,246
Sun 21/1212:15BKK - SEA
2 stops27h 27mMultiple Airlines
Sat 27/1200:10SEA - BKK
1 stop30h 50mMultiple Airlines
Deal found 23/11฿28,832
Sun 21/1217:40BKK - SEA
1 stop36h 25mSTARLUX Airlines
Sun 28/1223:45SEA - BKK
1 stop21h 50mSTARLUX Airlines
Deal found 23/11฿28,897
Sat 20/1216:55BKK - SEA
3 stops47h 04mUnited Airlines
Wed 21/119:30SEA - BKK
3 stops48h 55mUnited Airlines
Deal found 21/11฿28,961
Mon 22/1218:55DMK - SEA
2 stops28h 05mMultiple Airlines
Wed 7/115:45SEA - DMK
1 stop32h 00mMultiple Airlines
Deal found 21/11฿35,207
Sat 20/1207:45DMK - SEA
3 stops30h 01mMultiple Airlines
Tue 20/100:10SEA - DMK
1 stop28h 20mMultiple Airlines
Deal found 21/11฿35,368
Sun 21/1219:25DMK - SEA
3 stops42h 21mMultiple Airlines
Sat 27/1200:10SEA - DMK
2 stops33h 25mMultiple Airlines
Deal found 23/11฿35,401

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 23 November 2025.
Use the filters below to find and compare flights from Thailand to Seattle that are best for you.

Fly from

Thailand

Fly to

Seattle

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 23/2

23:50-18:40

1 stop33h 50m

Seattle/Tacoma Intl

Fri 27/3

22:30-21:50

1 stop33h 20m

฿21,745

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 26/2

13:20-18:40

1 stop20h 20m

Seattle/Tacoma Intl

Fri 27/3

22:30-21:50

1 stop33h 20m

฿22,069

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/2

02:35-18:10

1 stop30h 35m

Seattle/Tacoma Intl

Mon 9/3

01:10-16:45

1 stop25h 35m

฿25,208

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 9/4

13:30-20:10

1 stop20h 40m

Seattle/Tacoma Intl

Tue 21/4

23:05-12:05

1 stop23h 00m

฿25,272

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 30/3

02:40-19:30

1 stop30h 50m

Seattle/Tacoma Intl

Thu 4/6

01:10-16:20

1 stop25h 10m

฿25,564

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 25/1

16:55-21:12

3 stops43h 17m

Seattle/Tacoma Intl

Sat 31/1

17:12-11:25

2 stops27h 13m

฿25,628

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 23/2

23:50-18:40

1 stop33h 50m

Seattle/Tacoma Intl

Thu 26/3

22:30-12:00

1 stop23h 30m

฿25,920

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 15/4

15:40-01:14

2 stops23h 34m

Seattle/Tacoma Intl

Tue 30/6

16:30-04:35

1 stop22h 05m

฿26,017

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/3

00:55-10:00

1 stop23h 05m

Seattle/Tacoma Intl

Mon 13/7

13:20-21:45

1 stop18h 25m

฿26,146

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/3

02:05-09:00

1 stop21h 55m

Seattle/Tacoma Intl

Wed 4/3

11:00-23:20

1 stop21h 20m

฿26,146

Flights are sorted by cheapest return flights first.

Deals found on 21/11

Showing 1-10 of 54 results
1
2
3
...
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, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿20,127). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿25,272). 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 TH to SEA?

Find hourly flight availability from Thailand 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 23 November 2025.

It’s optimal to fly from Thailand to Seattle in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Thailand to Seattle?

Use this chart to determine the cheapest time to fly return from Thailand to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Thailand to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 23 November 2025.
Read through reviews of airlines operating flights from Thailand to Seattle, such as STARLUX Airlines, EVA Air, andKorean Air. 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

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
EVA Air
8.4
Very Good
1,281 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
Korean Air
8.4
Very Good
1,170 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
Asiana Airlines
8.2
Very Good
488 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
เดลต้า
7.9
Good
7,999 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Overall

8.9

Crew

9.2

Food

8.7

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

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 ฿27,408, Philippine Airlines can have you in Seattle from Thailand in 23h 45m. 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 most popular routes from Thailand to Seattle?

    The most popular flight routes from Thailand to Seattle are Bangkok Suvarnabhumi - Seattle/Tacoma Intl, Bangkok Don Mueang Intl - Seattle/Tacoma Intl and Chiang Mai - 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, April is the cheapest month in which you can book a flight from Thailand to Seattle (average of ฿20,127). Flying from Thailand to Seattle in July is currently the most expensive (average of ฿25,272). 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 7 airlines flying from Thailand to Seattle

Discover the top 7 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 23 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿20,777Average฿22,203FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿22,207Average฿23,935FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿23,885Average฿27,592FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapest฿24,187Average฿27,726FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Korean AirCheapest฿26,185Average฿29,430FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
EVA AirCheapest฿26,385Average฿29,804FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿26,814Average฿30,166FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.