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Cheap flights from Thailand to Seattle from $495

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Thailand to Seattle departing on 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Thailand to Seattle

Recent round-trip flight deals from Thailand to Seattle

Enter your travel dates to find the best prices.
United Airlines Logo
9:35 am - 2:22 pm
BKK
-
SEA
42h 47m
2 stops
United Airlines Logo
7:32 pm - 9:35 am
SEA
-
BKK
24h 03m
2 stops
$702United Airlines
Tue, Sep 15 - Tue, Oct 20
United Airlines Logo
7:00 am - 2:22 pm
BKK
-
SEA
21h 22m
2 stops
United Airlines Logo
5:15 am - 9:35 am
SEA
-
BKK
38h 20m
2 stops
$705United Airlines
Wed, Sep 16 - Tue, Oct 20
United Airlines Logo
3:45 pm - 2:25 pm
BKK
-
SEA
36h 40m
2 stops
United Airlines Logo
4:30 pm - 4:35 am
SEA
-
BKK
22h 05m
1 stop
$706United Airlines
Mon, Sep 14 - Wed, Oct 21
United Airlines Logo
3:45 pm - 11:19 pm
BKK
-
SEA
45h 34m
2 stops
United Airlines Logo
6:57 am - 11:25 am
SEA
-
BKK
37h 28m
2 stops
$707United Airlines
Fri, Jun 5 - Mon, Nov 23
United Airlines Logo
3:45 pm - 2:25 pm
BKK
-
SEA
36h 40m
2 stops
United Airlines Logo
1:20 pm - 9:35 am
SEA
-
BKK
30h 15m
2 stops
$714United Airlines
Mon, Sep 14 - Tue, Oct 20
Multiple Airlines Logo
9:40 pm - 2:55 pm
BKK
-
SEA
31h 15m
1 stop
Multiple Airlines Logo
12:55 am - 1:05 am
SEA
-
BKK
34h 10m
1 stop
$740Multiple Airlines
Wed, Jun 17 - Mon, Jun 29
EVA Air Logo
11:35 am - 7:00 pm
CNX
-
SEA
21h 25m
1 stop
EVA Air Logo
1:30 am - 10:25 am
SEA
-
CNX
18h 55m
1 stop
$887EVA Air
Tue, Sep 1 - Tue, Sep 29
EVA Air Logo
11:35 am - 9:43 pm
CNX
-
SEA
24h 08m
2 stops
EVA Air Logo
9:20 pm - 10:25 am
SEA
-
CNX
47h 05m
2 stops
$918EVA Air
Wed, Sep 2 - Thu, Oct 1
EVA Air Logo
8:00 pm - 7:40 pm
CNX
-
SEA
37h 40m
2 stops
EVA Air Logo
1:30 am - 7:10 pm
SEA
-
CNX
27h 40m
2 stops
$933EVA Air
Thu, Sep 3 - Mon, Sep 28
EVA Air Logo
8:00 pm - 7:40 pm
CNX
-
SEA
37h 40m
2 stops
EVA Air Logo
12:30 am - 7:10 pm
SEA
-
CNX
28h 40m
2 stops
$940EVA Air
Fri, Sep 4 - Sat, Oct 3

United Airlines flights from Thailand to Seattle

Our best United Airlines deals on Thailand to Seattle flight tickets
United Airlines
Sep 15
BKK9:35 amBangkok Suvarnabhumi
42h 47m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
Oct 20
SEA7:32 pmSeattle/Tacoma Intl
24h 03m
2 stops
BKK9:35 amBangkok Suvarnabhumi
$702
United Airlines
Sep 16
BKK7:00 amBangkok Suvarnabhumi
21h 22m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
Oct 20
SEA5:15 amSeattle/Tacoma Intl
38h 20m
2 stops
BKK9:35 amBangkok Suvarnabhumi
$705
United Airlines
Sep 14
BKK3:45 pmBangkok Suvarnabhumi
36h 40m
2 stops
SEA2:25 pmSeattle/Tacoma Intl
Oct 21
SEA4:30 pmSeattle/Tacoma Intl
22h 05m
1 stop
BKK4:35 amBangkok Suvarnabhumi
$706

EVA Air flights from Thailand to Seattle

Our best EVA Air deals on Thailand to Seattle flight tickets
EVA Air
Sep 15
BKK4:45 pmBangkok Suvarnabhumi
16h 15m
1 stop
SEA7:00 pmSeattle/Tacoma Intl
Oct 19
SEA1:30 amSeattle/Tacoma Intl
19h 25m
1 stop
BKK10:55 amBangkok Suvarnabhumi
$783
EVA Air
Sep 1
CNX11:35 amChiang Mai
21h 25m
1 stop
SEA7:00 pmSeattle/Tacoma Intl
Sep 29
SEA1:30 amSeattle/Tacoma Intl
18h 55m
1 stop
CNX10:25 amChiang Mai
$887
EVA Air
Sep 2
CNX11:35 amChiang Mai
24h 08m
2 stops
SEA9:43 pmSeattle/Tacoma Intl
Oct 1
SEA9:20 pmSeattle/Tacoma Intl
47h 05m
2 stops
CNX10:25 amChiang Mai
$918

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated April 8, 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 round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/15

9:35 am-2:22 pm

2 stops42h 47m

Seattle/Tacoma Intl

Tue 10/20

7:32 pm-9:35 am

2 stops24h 03m

$702

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/16

7:00 am-2:22 pm

2 stops21h 22m

Seattle/Tacoma Intl

Tue 10/20

5:15 am-9:35 am

2 stops38h 20m

$705

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/14

3:45 pm-2:25 pm

2 stops36h 40m

Seattle/Tacoma Intl

Wed 10/21

4:30 pm-4:35 am

1 stop22h 05m

$706

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/5

3:45 pm-11:19 pm

2 stops45h 34m

Seattle/Tacoma Intl

Mon 11/23

6:57 am-11:25 am

2 stops37h 28m

$707

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/14

3:45 pm-2:25 pm

2 stops36h 40m

Seattle/Tacoma Intl

Tue 10/20

1:20 pm-9:35 am

2 stops30h 15m

$714

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 6/17

9:40 pm-2:55 pm

1 stop31h 15m

Seattle/Tacoma Intl

Mon 6/29

12:55 am-1:05 am

1 stop34h 10m

$740
Quickest round-trip

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 9/1

11:35 am-7:00 pm

1 stop21h 25m

Seattle/Tacoma Intl

Tue 9/29

1:30 am-10:25 am

1 stop18h 55m

$887

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 9/2

11:35 am-9:43 pm

2 stops24h 08m

Seattle/Tacoma Intl

Thu 10/1

9:20 pm-10:25 am

2 stops47h 05m

$918

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 9/3

8:00 pm-7:40 pm

2 stops37h 40m

Seattle/Tacoma Intl

Mon 9/28

1:30 am-7:10 pm

2 stops27h 40m

$933

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 9/4

8:00 pm-7:40 pm

2 stops37h 40m

Seattle/Tacoma Intl

Sat 10/3

12:30 am-7:10 pm

2 stops28h 40m

$940

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Thailand to Seattle

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

What is the cheapest month to fly to Seattle?

In general, March is the cheapest month to fly from Thailand to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $742. If you don’t want to visit Seattle in March, then you should wait until December to fly from Thailand, when ticket prices are also cheap, with an average price of $766.

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

You are more likely to see cheaper flights to Seattle from Thailand when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $868 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Thailand for as low as $737 on momondo.

Can stopping save me money on Thailand to Seattle flights?

You could potentially save up to 3% on your flight if you consider stops on a Thailand to Seattle flight.

Cheap Thailand to Seattle flight deals and tips

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

Fastest flight time

18h 50m

Direct flights

None
The fastest flight from Thailand to Seattle takes 18h 50m
There are no direct flights from Thailand to Seattle. There are no popular flight routes from Thailand to Seattle.
Search flight deals

Frequently asked questions about flying from Thailand to Seattle

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

    Prices for flights from Thailand to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Thailand to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Thailand to Seattle

Compare and see reviews for airlines that fly from Thailand to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Philippine AirlinesPriceFrom $625Free CancellationRating
7.3
984 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $655Free CancellationRating
8.1
512 reviews
Search Asiana Airlines flights
STARLUX AirlinesPriceFrom $703Free CancellationRating
8.9
295 reviews
Search STARLUX Airlines flights
EVA AirPriceFrom $766Free CancellationRating
8.5
1,397 reviews
Search EVA Air flights
China AirlinesPriceFrom $776Free CancellationRating
8.3
816 reviews
Search China Airlines flights
Korean AirPriceFrom $793Free CancellationRating
8.4
1,205 reviews
Search Korean Air flights
DeltaPriceFrom $831Free CancellationRating
7.9
8,388 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Tumwater
Shoreline

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Thailand.

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

Flights from Thailand to Seattle 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 Thailand to Seattle?

momondo helps you find the best flight between Thailand and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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