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Find cheap flights from Washington to Thailand from $454

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 9/30. 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 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

May

High season

January

Cheapest flight

$454
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Seattle to Chiang Mai

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

10/7Mon
1 stopChina Airlines
19h 10mSEA-CNX
10/22Tue
1 stopChina Airlines
22h 10mCNX-SEA
$749
10/7Mon
1 stopChina Airlines
19h 10mSEA-CNX
10/22Tue
1 stopChina Airlines
22h 10mCNX-SEA
$776
10/24Thu
1 stopSingapore Airlines
32h 10mSEA-HKT
11/6Wed
1 stopSingapore Airlines
26h 05mHKT-SEA
$878
11/10Sun
1 stopSingapore Airlines
33h 30mSEA-HKT
11/20Wed
1 stopSingapore Airlines
31h 10mHKT-SEA
$880
10/7Mon
1 stop
19h 10mSEA-CNX
10/22Tue
2 stops
35h 38mCNX-SEA
$888
10/7Mon
1 stopEVA Air
18h 55mSEA-CNX
10/22Tue
1 stopEVA Air
21h 55mCNX-SEA
$913
9/21Sat
2 stopsANA
43h 30mPDX-BKK
10/3Thu
2 stopsANA
22h 00mBKK-PDX
$943
10/15Tue
1 stopEVA Air
18h 55mSEA-CNX
10/30Wed
2 stopsEVA Air
21h 00mCNX-SEA
$957
10/16Wed
2 stops
26h 21mSEA-CNX
10/30Wed
2 stops
34h 55mCNX-SEA
$967
9/20Fri
2 stopsANA
41h 30mPDX-BKK
10/5Sat
2 stopsANA
22h 00mBKK-PDX
$978

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Recent one-way flight deals

9/30Mon
1 stopChina Airlines
19h 10mSEA-CNX
$454
10/9Wed
1 stopEVA Air
18h 55mSEA-CNX
$534
8/14Wed
3 stops
38h 31mPDX-BKK
$536
10/2Wed
2 stops
26h 21mSEA-CNX
$543
9/24Tue
2 stopsUnited Airlines
49h 05mPDX-BKK
$569
10/10Thu
1 stopAsiana Airlines
19h 25mSEA-CNX
$587
10/8Tue
3 stopsUnited Airlines
41h 56mPDX-BKK
$589
7/16Tue
2 stopsJapan Airlines
24h 30mPDX-BKK
$608
8/3Sat
1 stopAsiana Airlines
19h 25mSEA-CNX
$667
7/10Wed
2 stopsJapan Airlines
43h 27mSEA-BKK
$673

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Last minute flights from Washington to Thailand

Last minute flight, train and bus deals

5/20Mon
multi-stopTurkish Airlines
30h 45mSEA-BKK
5/23Thu
multi-stopTurkish Airlines
31h 40mBKK-SEA
$1,262
5/17Fri
multi-stop
27h 56mSEA-BKK
5/23Thu
multi-stop
26h 59mBKK-SEA
$1,341
5/20Mon
multi-stop
26h 26mSEA-BKK
6/7Fri
multi-stop
26h 15mBKK-SEA
$1,343
5/17Fri
multi-stopUnited Airlines
28h 55mSEA-BKK
5/23Thu
multi-stopUnited Airlines
26h 40mBKK-SEA
$1,346
5/21Tue
multi-stopCathay Pacific
45h 45mSEA-BKK
6/14Fri
multi-stopCathay Pacific
44h 29mBKK-SEA
$1,430
5/17Fri
multi-stopSingapore Airlines
46h 00mSEA-BKK
5/23Thu
multi-stopSingapore Airlines
38h 25mBKK-SEA
$1,506
5/19Sun
multi-stopChina Eastern
43h 50mPDX-BKK
5/21Tue
multi-stopChina Eastern
34h 52mBKK-PDX
$1,545
5/20Mon
multi-stopSingapore Airlines
30h 27mSEA-BKK
5/23Thu
multi-stopSingapore Airlines
37h 20mBKK-SEA
$1,930
5/20Mon
multi-stopUnited Airlines
31h 57mSEA-BKK
10/16Wed
multi-stopUnited Airlines
29h 00mBKK-SEA
$5,891
5/19Sun
multi-stopCathay Pacific
41h 55mPDX-BKK
5/26Sun
multi-stopCathay Pacific
44h 00mBKK-PDX
$6,453

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Flights to Thailand

Return flight deals:

Thailand - Washington

Cabin classes: