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

Singapore Airlines, Korean Air, and ANA are the most popular carriers operating from Seattle/Tacoma Intl to Bangkok

What airlines fly to Bangkok?

EVA Air, China Airlines and Asiana Airlines are the top three most popular airlines that fly to Bangkok from Seattle according to our data. EVA Air is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 17 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Seattle/Tacoma Intl Airport to Bangkok is 17 as of July 2025.

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

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 Bangkok.

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

The required travel and health documents for your Bangkok 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 Bangkok. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$282 Cheap Flights from Seattle to Bangkok in 2025

Q: What is the typical price of a round-trip flight between Seattle and Bangkok?

Prices are currently low for flights on this route. Typical prices usually range from $886 to $1,173. The lowest price recently found on this route was $546.

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Find the cheapest flights from Seattle to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

8:45 am - 8:00 pmSEA-BKK

20h 15m1 stop

3:40 pm - 7:10 amBKK-SEA

30h 30m1 stop

$546Singapore Airlines

Find Deal

Thu, Nov 6 - Mon, Nov 17

9:45 am - 6:45 pmSEA-BKK

43h 00m1 stop

9:10 pm - 7:10 amBKK-SEA

25h 00m1 stop

$548Singapore Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 17

9:45 am - 6:45 pmSEA-BKK

43h 00m1 stop

3:40 pm - 7:10 amBKK-SEA

30h 30m1 stop

$563Singapore Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 17

1:20 pm - 11:25 pmSEA-BKK

20h 05m1 stop

11:30 pm - 10:50 amBKK-SEA

25h 20m1 stop

$649Korean Air

Find Deal

Mon, Aug 4 - Wed, Aug 20

1:20 pm - 11:25 pmSEA-BKK

20h 05m1 stop

2:35 am - 10:12 pmBKK-SEA

33h 37m2 stops

$652Korean Air

Find Deal

Mon, Aug 4 - Tue, Aug 19

5:14 pm - 11:55 pmSEA-BKK

40h 41m2 stops

7:00 am - 3:19 pmBKK-SEA

22h 19m2 stops

$655United Airlines

Find Deal

Mon, Aug 4 - Wed, Aug 20

12:10 am - 10:05 pmSEA-BKK

31h 55m1 stop

11:55 pm - 1:55 pmBKK-SEA

29h 00m1 stop

$674Asiana Airlines

Find Deal

Tue, Oct 28 - Mon, Nov 17

12:10 am - 10:05 pmSEA-BKK

30h 55m1 stop

11:55 pm - 1:55 pmBKK-SEA

29h 00m1 stop

$675Asiana Airlines

Find Deal

Tue, Jan 13 - Wed, Jan 28

5:30 am - 10:15 pmSEA-DMK

26h 45m2 stops

8:10 am - 6:36 pmDMK-SEA

24h 26m2 stops

$761

Find Deal

Sun, Sep 7 - Tue, Sep 16

1:40 am - 3:05 pmSEA-DMK

23h 25m2 stops

7:30 am - 7:20 pmDMK-SEA

25h 50m2 stops

$895

Find Deal

Sat, Sep 6 - Sun, Sep 21

Singapore Airlines flights from Seattle to Bangkok

Our best Singapore Airlines deals on Seattle to Bangkok flight tickets

Singapore Airlines

Nov 6

SEA8:45 amSeattle/Tacoma Intl

20h 15m

1 stop

BKK8:00 pmBangkok Suvarnabhumi

Nov 17

BKK3:40 pmBangkok Suvarnabhumi

30h 30m

1 stop

SEA7:10 amSeattle/Tacoma Intl

$546

Find similar

Singapore Airlines

Oct 30

SEA9:45 amSeattle/Tacoma Intl

43h 00m

1 stop

BKK6:45 pmBangkok Suvarnabhumi

Nov 17

BKK9:10 pmBangkok Suvarnabhumi

25h 00m

1 stop

SEA7:10 amSeattle/Tacoma Intl

$548

Find similar

Singapore Airlines

Oct 30

SEA9:45 amSeattle/Tacoma Intl

43h 00m

1 stop

BKK6:45 pmBangkok Suvarnabhumi

Nov 17

BKK3:40 pmBangkok Suvarnabhumi

30h 30m

1 stop

SEA7:10 amSeattle/Tacoma Intl

$563

Find similar

Asiana Airlines flights from Seattle to Bangkok

Our best Asiana Airlines deals on Seattle to Bangkok flight tickets

Asiana Airlines

Oct 28

SEA12:10 amSeattle/Tacoma Intl

31h 55m

1 stop

BKK10:05 pmBangkok Suvarnabhumi

Nov 17

BKK11:55 pmBangkok Suvarnabhumi

29h 00m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$674

Find similar

Asiana Airlines

Jan 13

SEA12:10 amSeattle/Tacoma Intl

30h 55m

1 stop

BKK10:05 pmBangkok Suvarnabhumi

Jan 28

BKK11:55 pmBangkok Suvarnabhumi

29h 00m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$675

Find similar

Asiana Airlines

Aug 13

SEA2:30 pmSeattle/Tacoma Intl

18h 40m

1 stop

BKK11:10 pmBangkok Suvarnabhumi

Aug 26

BKK1:20 amBangkok Suvarnabhumi

25h 25m

1 stop

SEA12:45 pmSeattle/Tacoma Intl

$676

Find similar

How to get the cheapest flight ticket from Seattle to Bangkok

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 typical price of a round-trip flight between Seattle and Bangkok?

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of February, then book flights to Bangkok from Seattle during March instead. Flights to Bangkok in March, while not as cheap as those in February, still average around $821.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $931. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to Bangkok on a Friday will generally be more expensive and average around $1,111. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is in the morning. momondo users have found flights departing from Seattle to Bangkok in the morning for as low as $986. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,081. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Bangkok?

You are more likely to see cheaper flights to Bangkok from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $937 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Seattle for as low as $798 on momondo.

Cheap Seattle to Bangkok flight deals and tips

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

Best Price Found	$282
Fastest flight time	18h 25m
Direct flights	None
Airports in Bangkok	2 airports

The best one-way flight to Bangkok from Seattle in the past 72 hours is $282. The best round-trip flight deal from Seattle to Bangkok found on momondo in the last 72 hours is $546.

The fastest flight from Seattle to Bangkok takes 18h 25m

There are no direct flights from Seattle to Bangkok. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Bangkok Suvarnabhumi Airport.

There are 2 airports near Bangkok: Bangkok Suvarnabhumi (BKK), Bangkok Don Mueang Intl (DMK)

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How far is Seattle/Tacoma Intl to Bangkok by plane?
A flight from Seattle/Tacoma Intl to Bangkok will travel around 7436.9 mi. 18h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bangkok?
Prices for flights from Seattle/Tacoma Intl Airport to Bangkok were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bangkok?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Bangkok is 17 as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bangkok?
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 Bangkok.
What documentation or ID do you need to fly to Bangkok?
The required travel and health documents for your Bangkok 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 Bangkok. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Seattle to Bangkok

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $433	Free Cancellation	Rating 8.0 7,958 reviews	Search Delta flights
Singapore Airlines	PriceFrom $577	Free Cancellation	Rating 8.1 1,327 reviews	Search Singapore Airlines flights
Asiana Airlines	PriceFrom $634	Free Cancellation	Rating 8.2 456 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $693	Free Cancellation	Rating 8.4 1,109 reviews	Search Korean Air flights
Philippine Airlines	PriceFrom $708	Free Cancellation	Rating 7.2 893 reviews	Search Philippine Airlines flights
STARLUX Airlines	PriceFrom $739	Free Cancellation	Rating 9.0 189 reviews	Search STARLUX Airlines flights
ANA	PriceFrom $746	Free Cancellation	Rating 8.4 913 reviews	Search ANA flights
China Eastern	PriceFrom $755	Free Cancellation	Rating 7.2 151 reviews	Search China Eastern flights
China Airlines	PriceFrom $756	Free Cancellation	Rating 8.2 745 reviews	Search China Airlines flights
Turkish Airlines	PriceFrom $773	Free Cancellation	Rating 7.3 3,906 reviews	Search Turkish Airlines flights

Why use momondo?

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

It is quick and easy to find Seattle to Bangkok flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bangkok that suits you.

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

Flights from Seattle to Bangkok with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from Seattle.

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

Yes. momondo can track prices for Seattle to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.