What airlines fly to Thailand?

Singapore Airlines, EVA Air and Asiana Airlines are the top three most popular airlines that fly to Thailand from Seattle according to our data. Singapore Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 17 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Thailand?

Singapore Airlines, Delta, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Thailand

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Thailand?

Prices for flights from Seattle/Tacoma Intl Airport to Thailand were last updated today.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Thailand?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Thailand is 17 as of November 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Thailand?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Thailand.

What documentation or ID do you need to fly to Thailand?

The required travel and health documents for your Thailand trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$292 Cheap Flights from Seattle to Thailand in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 am - 7:35 pmSEA Seattle/Tacoma Intl-HKT Phuket City

19h 55m1 stop Singapore Changi

2:45 pm - 7:05 amHKT Phuket City-SEA Seattle/Tacoma Intl

31h 20m1 stop Singapore Changi

$606Singapore Airlines

Tue, Feb 23 - Tue, Mar 2

10:15 am - 7:15 pmSEA Seattle/Tacoma Intl-HKT Phuket City

19h 00m1 stop Singapore Changi

8:10 pm - 8:45 amHKT Phuket City-SEA Seattle/Tacoma Intl

26h 35m1 stop Singapore Changi

$616Singapore Airlines

Tue, Mar 30 - Wed, Apr 14

9:30 pm - 10:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

34h 15m1 stop Manila Ninoy Aquino Intl

11:40 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

34h 05m1 stop Manila Ninoy Aquino Intl

$777Philippine Airlines

Mon, Nov 16 - Tue, Dec 8

9:30 pm - 7:50 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

19h 20m1 stop Manila Ninoy Aquino Intl

11:40 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

34h 05m1 stop Manila Ninoy Aquino Intl

$782Philippine Airlines

Mon, Nov 16 - Tue, Dec 8

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

11:50 am - 8:05 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

35h 15m1 stop Chongqing Jiangbei Intl

$788Hainan Airlines

Tue, Jan 5 - Wed, Feb 10

10:20 am - 2:20 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

37h 00m1 stop Beijing Capital

1:05 am - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Beijing Capital

$788Hainan Airlines

Tue, Nov 17 - Mon, Dec 14

8:40 am - 7:35 pmSEA Seattle/Tacoma Intl-HKT Phuket City

19h 55m1 stop Singapore Changi

10:55 pm - 9:05 amHKT Phuket City-SEA Seattle/Tacoma Intl

25h 10m1 stop Incheon Intl

$813Multiple Airlines

Fri, Feb 19 - Sun, Feb 28

8:40 am - 8:00 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 20m1 stop Singapore Changi

1:10 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

20h 35m1 stop Manila Ninoy Aquino Intl

$825Multiple Airlines

Tue, Feb 16 - Sun, Mar 7

12:50 pm - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 45m1 stop Incheon Intl

9:50 am - 2:55 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

19h 05m1 stop Incheon Intl

$846Korean Air

Wed, Mar 31 - Thu, Apr 15

12:50 pm - 9:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 55m1 stop Incheon Intl

9:50 am - 2:55 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

19h 05m1 stop Incheon Intl

$846Korean Air

Mon, Mar 29 - Wed, Apr 14

Cheap last minute flights

Enter your travel dates to find the best prices.

8:40 am - 6:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

43h 05m1 stop Singapore Changi

9:15 pm - 7:05 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

48h 50m1 stop Singapore Changi

$767Singapore Airlines

Sun, Nov 8 - Sun, Nov 22

8:40 am - 6:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

43h 05m1 stop Singapore Changi

9:40 am - 7:05 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

36h 25m1 stop Singapore Changi

$768Singapore Airlines

Sun, Nov 8 - Mon, Nov 23

9:30 pm - 8:55 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 25m1 stop Manila Ninoy Aquino Intl

1:10 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

20h 35m1 stop Manila Ninoy Aquino Intl

$774Philippine Airlines

Thu, Nov 5 - Wed, Nov 18

9:30 pm - 12:05 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

23h 35m1 stop Manila Ninoy Aquino Intl

7:50 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

37h 55m1 stop Manila Ninoy Aquino Intl

$777Philippine Airlines

Mon, Nov 9 - Wed, Nov 25

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

4:20 pm - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

31h 00m1 stop Beijing Capital

$788Hainan Airlines

Sat, Nov 7 - Fri, Nov 13

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

4:20 pm - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

31h 00m1 stop Beijing Capital

$788Hainan Airlines

Sat, Nov 7 - Fri, Nov 20

10:25 am - 4:40 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

39h 15m1 stop Hong Kong Intl

3:10 pm - 8:45 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

32h 35m1 stop Hong Kong Intl

$880Cathay Pacific

Tue, Nov 10 - Tue, Nov 17

10:25 am - 6:05 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

40h 40m1 stop Hong Kong Intl

3:10 pm - 8:45 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

32h 35m1 stop Hong Kong Intl

$888Cathay Pacific

Tue, Nov 10 - Tue, Nov 24

10:05 am - 10:40 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

33h 35m1 stop Chongqing Jiangbei Intl

12:00 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

21h 45m2 stops Hong Kong Intl Manila Ninoy Aquino Intl

$889Multiple Airlines

Thu, Nov 5 - Wed, Nov 18

10:20 am - 2:20 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

37h 00m1 stop Beijing Capital

11:40 pm - 6:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

34h 05m1 stop Manila Ninoy Aquino Intl

$903Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

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Hainan Airlines flights from Seattle to Thailand

Our best Hainan Airlines deals on Seattle to Thailand flight tickets

Hainan Airlines

Dec 1

SEA10:20 amSeattle/Tacoma Intl

22h 15m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

Dec 23

BKK7:30 pmBangkok Suvarnabhumi

27h 35m

2 stops

SEA8:05 amSeattle/Tacoma Intl

$788

Hainan Airlines

Nov 12

SEA10:05 amSeattle/Tacoma Intl

33h 35m

1 stop

BKK10:40 amBangkok Suvarnabhumi

Nov 25

BKK7:30 pmBangkok Suvarnabhumi

27h 35m

2 stops

SEA8:05 amSeattle/Tacoma Intl

$790

Hainan Airlines

Nov 28

SEA10:20 amSeattle/Tacoma Intl

22h 15m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

Dec 11

BKK1:05 amBangkok Suvarnabhumi

22h 15m

1 stop

SEA8:20 amSeattle/Tacoma Intl

$827

Philippine Airlines flights from Seattle to Thailand

Our best Philippine Airlines deals on Seattle to Thailand flight tickets

Philippine Airlines

Nov 9

SEA9:30 pmSeattle/Tacoma Intl

23h 35m

1 stop

BKK12:05 pmBangkok Suvarnabhumi

Nov 25

BKK7:50 pmBangkok Suvarnabhumi

37h 55m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$777

Philippine Airlines

Nov 16

SEA9:30 pmSeattle/Tacoma Intl

34h 15m

1 stop

BKK10:45 pmBangkok Suvarnabhumi

Dec 8

BKK11:40 pmBangkok Suvarnabhumi

34h 05m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$782

Philippine Airlines

Jan 31

SEA9:30 pmSeattle/Tacoma Intl

20h 25m

1 stop

BKK8:55 amBangkok Suvarnabhumi

Feb 17

BKK1:10 pmBangkok Suvarnabhumi

20h 35m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$790

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePhuket City

SEA Seattle/Tacoma Intl - HKT Phuket City

SEAHKT

Seattle/Tacoma Intl

Tue 2/23

8:40 am-7:35 pm

1 stop19h 55m

Phuket City

Tue 3/2

2:45 pm-7:05 am

1 stop31h 20m

$606

SeattlePhuket City

SEA Seattle/Tacoma Intl - HKT Phuket City

SEAHKT

Seattle/Tacoma Intl

Tue 3/30

10:15 am-7:15 pm

1 stop19h 00m

Phuket City

Wed 4/14

8:10 pm-8:45 am

1 stop26h 35m

$616

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Mon 11/16

9:30 pm-10:45 pm

1 stop34h 15m

Bangkok Suvarnabhumi

Tue 12/8

11:40 pm-6:45 pm

1 stop34h 05m

$777

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Mon 11/16

9:30 pm-7:50 am

1 stop19h 20m

Bangkok Suvarnabhumi

Tue 12/8

11:40 pm-6:45 pm

1 stop34h 05m

$782

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Tue 1/5

10:20 am-11:35 pm

1 stop22h 15m

Bangkok Suvarnabhumi

Wed 2/10

11:50 am-8:05 am

1 stop35h 15m

$788

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Tue 11/17

10:20 am-2:20 pm

1 stop37h 00m

Bangkok Suvarnabhumi

Mon 12/14

1:05 am-8:20 am

1 stop22h 15m

$788

SeattlePhuket City

SEA Seattle/Tacoma Intl - HKT Phuket City

SEAHKT

Seattle/Tacoma Intl

Fri 2/19

8:40 am-7:35 pm

1 stop19h 55m

Phuket City

Sun 2/28

10:55 pm-9:05 am

1 stop25h 10m

$813

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Tue 2/16

8:40 am-8:00 pm

1 stop20h 20m

Bangkok Suvarnabhumi

Sun 3/7

1:10 pm-6:45 pm

1 stop20h 35m

$825

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Wed 3/31

12:50 pm-11:35 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Thu 4/15

9:50 am-2:55 pm

1 stop19h 05m

$846

Quickest round-trip

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Mon 3/29

12:50 pm-9:45 pm

1 stop18h 55m

Bangkok Suvarnabhumi

Wed 4/14

9:50 am-2:55 pm

1 stop19h 05m

$846

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Thailand

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Thailand?

The month of March is, on average, the cheapest month to fly to Thailand from Seattle, with most prices found around $755. If you are unable to visit Thailand during the month of March, then departing from Seattle during the month April is also very affordable. Most momondo users find prices during this month for around $786.

How far in advance should I book a flight from Seattle to Thailand?

You are more likely to see cheaper flights to Thailand from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $909 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Seattle for as low as $814 on momondo.

Can stopping save me money on Seattle to Thailand flights?

You could potentially save up to 30% on your flight if you consider stops on a Seattle to Thailand flight.

Cheap Seattle to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Thailand

Best Price Found	$292
Fastest flight time	19h 00m
Direct flights	None

The best one-way flight to Thailand from Seattle in the past 72 hours is $292. The best round-trip flight deal from Seattle to Thailand found on momondo in the last 72 hours is $606.

The fastest flight from Seattle to Thailand takes 19h 00m

There are no direct flights from Seattle to Thailand. There are no popular flight routes from Seattle to Thailand.

Search flight deals

Frequently asked questions about flying from Seattle to Thailand

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Thailand?
Prices for flights from Seattle/Tacoma Intl Airport to Thailand were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Thailand?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Thailand is 17 as of November 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Thailand?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Thailand.
What documentation or ID do you need to fly to Thailand?
The required travel and health documents for your Thailand trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Seattle to Thailand

Compare and see reviews for airlines that fly from Seattle to Thailand with momondo

Airline	Rating	Free Cancellation	Price
Philippine Airlines	PriceFrom $149	Free Cancellation	Rating 7.3 1,040 reviews	Search Philippine Airlines flights
Hainan Airlines	PriceFrom $385	Free Cancellation	Rating 8.4 73 reviews	Search Hainan Airlines flights
Air Canada	PriceFrom $428	Free Cancellation	Rating 7.1 11,861 reviews	Search Air Canada flights
Delta	PriceFrom $459	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights
Singapore Airlines	PriceFrom $511	Free Cancellation	Rating 8.2 1,631 reviews	Search Singapore Airlines flights
Qatar Airways	PriceFrom $577	Free Cancellation	Rating 7.4 3,711 reviews	Search Qatar Airways flights
Asiana Airlines	PriceFrom $630	Free Cancellation	Rating 8.1 570 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $655	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
United Airlines	PriceFrom $702	Free Cancellation	Rating 7.3 10,458 reviews	Search United Airlines flights
ANA	PriceFrom $702	Free Cancellation	Rating 8.3 1,339 reviews	Search ANA flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Thailand?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Thailand for you.

Can I find flights from Seattle to Thailand with flexible booking policies on momondo?

Yes. All flights to Thailand from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Thailand?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Thailand.

I’m not ready to book a flight from Seattle to Thailand right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Thailand now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Thailand and let you know when they change.