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Find cheap flights from Washington to Thailand from $479

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington to Thailand departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 7/6
Sat 7/13

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In the last 7 days travelers have searched 43,995,393 times on KAYAK, and here is why:

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Good to know

Low season

May

High season

January

Cheapest flight

$479
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Seattle to Bangkok Suvarnabhumi Airport

FAQs for booking flights from Washington to Thailand

  • How does KAYAK find such low prices on flights from Washington to Thailand?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Thailand.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Thailand?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thailand from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Thailand?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Thailand with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Thailand?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Thailand from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Washington to Thailand

Recent round-trip flight deals

10/30Wed
1 stopPhilippine Airlines
27h 10mSEA-BKK
11/6Wed
1 stopPhilippine Airlines
19h 45mBKK-SEA
$745
11/24Sun
1 stopPhilippine Airlines
32h 15mSEA-BKK
12/15Sun
1 stopPhilippine Airlines
19h 45mBKK-SEA
$768
10/3Thu
1 stopAsiana Airlines
19h 25mSEA-CNX
10/23Wed
1 stopAsiana Airlines
26h 00mCNX-SEA
$832
11/5Tue
1 stopSingapore Airlines
32h 45mSEA-BKK
11/18Mon
1 stopSingapore Airlines
26h 15mBKK-SEA
$835
9/9Mon
1 stopChina Airlines
20h 30mSEA-BKK
10/7Mon
1 stopChina Airlines
30h 50mBKK-SEA
$842
10/1Tue
1 stopChina Airlines
18h 35mSEA-BKK
10/17Thu
1 stopChina Airlines
20h 10mBKK-SEA
$843
9/2Mon
1 stopAsiana Airlines
18h 50mSEA-BKK
9/29Sun
1 stopAsiana Airlines
25h 35mBKK-SEA
$844
11/17Sun
1 stopSTARLUX Airlines
25h 25mSEA-BKK
12/20Fri
1 stopSTARLUX Airlines
15h 15mBKK-SEA
$850
11/14Thu
1 stopSingapore Airlines
41h 45mSEA-BKK
11/27Wed
1 stopSingapore Airlines
30h 35mBKK-SEA
$853
8/21Wed
1 stopSTARLUX Airlines
24h 30mSEA-BKK
9/14Sat
1 stopSTARLUX Airlines
36h 10mBKK-SEA
$887

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Recent one-way flight deals

8/18Sun
1 stopSTARLUX Airlines
24h 30mSEA-BKK
$479
9/15Sun
1 stopChina Airlines
18h 35mSEA-BKK
$482
8/12Mon
1 stopKorean Air
20h 50mSEA-BKK
$495
11/13Wed
1 stopEVA Air
20h 30mSEA-BKK
$499
8/12Mon
2 stopsKorean Air
33h 10mSEA-BKK
$500
8/13Tue
1 stopEVA Air
20h 25mSEA-BKK
$501
8/28Wed
2 stops
26h 15mSEA-BKK
$503
10/7Mon
1 stopJapan Airlines
19h 30mSEA-BKK
$504
7/31Wed
1 stopJapan Airlines
19h 30mSEA-BKK
$505
8/14Wed
2 stops
27h 40mSEA-BKK
$508

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Last minute flights from Washington to Thailand

Last minute flight, train and bus deals

6/7Fri
multi-stopUnited Airlines
27h 40mSEA-BKK
6/18Tue
multi-stopUnited Airlines
25h 46mBKK-SEA
$1,406
6/11Tue
multi-stop
27h 55mSEA-BKK
7/1Mon
multi-stop
24h 00mBKK-SEA
$1,517
6/8Sat
multi-stopAmerican Airlines
30h 15mSEA-BKK
6/10Mon
multi-stopAmerican Airlines
41h 59mBKK-SEA
$1,528
6/8Sat
multi-stopAmerican Airlines
34h 56mSEA-BKK
6/10Mon
multi-stopAmerican Airlines
41h 59mBKK-SEA
$1,532
6/7Fri
multi-stopTurkish Airlines
30h 45mSEA-BKK
6/18Tue
multi-stopTurkish Airlines
31h 40mBKK-SEA
$1,608
6/11Tue
multi-stopCathay Pacific
22h 25mSEA-BKK
6/26Wed
multi-stopCathay Pacific
24h 46mBKK-SEA
$1,612
6/10Mon
multi-stopANA
41h 35mPDX-BKK
7/9Tue
multi-stopANA
25h 33mBKK-PDX
$1,681
6/8Sat
multi-stopTurkish Airlines
45h 25mSEA-BKK
6/24Mon
multi-stopTurkish Airlines
31h 55mBKK-SEA
$1,733
6/11Tue
multi-stopCathay Pacific
25h 00mSEA-BKK
7/8Mon
multi-stopCathay Pacific
36h 52mBKK-SEA
$1,831
6/10Mon
multi-stopANA
32h 50mSEA-BKK
6/25Tue
multi-stopANA
18h 50mBKK-SEA
$2,110

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Flights to Thailand

Return flight deals:

Thailand - Washington

Cabin classes: