$267 Find Cheap Flights from Washington to Southeast Asia

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Useful Info

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$267
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 47% increase in price.
Flight from Seattle to Singapore

FAQs for booking flights from Washington to Southeast Asia

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

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Southeast Asia 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 Southeast Asia?

    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 from Washington to Southeast Asia with an airline and back with another airline.

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

    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 from Washington to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Southeast Asia?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Singapore Changi Airport (SIN), with an average flight price of $463.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Tuesday where round-trip tickets can be as cheap as $931. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,111 on average.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the morning, when round-trip flights cost $986 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,081.

  • What is the cheapest flight to Southeast Asia?

    The cheapest ticket to Southeast Asia from Washington found in the last 72 hours was to Singapore, at $584 round-trip. The most popular route is Seattle (SEA) to Singapore (SIN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $584.

  • What is the cheapest month to fly from Washington to Southeast Asia?

    The cheapest month for flights from Washington to Southeast Asia is February, when tickets cost $808 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,278 and $1,196 respectively.

  • How far in advance should I book a flight from Washington to Southeast Asia?

    To get a below average price on the flight from Washington to Southeast Asia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to Southeast Asia?

    An average nonstop flight from Washington to Southeast Asia takes 23h 23m, covering a distance of 7436 miles. The shortest route is Seattle (SEA) to Manila (MNL) with an average flight time of 12h 30m.

  • What are the most popular destinations in Southeast Asia?

    Based on KAYAK flight searches, the most popular destination is Bangkok (39% of total searches to Southeast Asia). The next most popular destinations are Manila (19%) and Ho Chi Minh City (10%). Searches for flights to Singapore (6%), to Davao City (5%) and to Denpasar (4%) are also popular.

Book cheap flights from Washington to Southeast Asia

Recent round-trip flight deals

9/16Tue
nonstopSingapore Airlines
16h 20mSEA-SIN
10/2Thu
nonstopSingapore Airlines
14h 45mSIN-SEA
$514
11/11Tue
nonstopSingapore Airlines
17h 00mSEA-SIN
11/16Sun
nonstopSingapore Airlines
14h 10mSIN-SEA
$542
9/1Mon
1 stopANA
23h 30mSEA-BKK
9/17Wed
2 stopsANA
23h 01mBKK-SEA
$631
9/1Mon
1 stopANA
22h 05mSEA-BKK
9/17Wed
1 stopANA
18h 50mBKK-SEA
$639
9/1Mon
1 stopKorean Air
20h 35mSEA-BKK
9/16Tue
1 stopKorean Air
22h 05mBKK-SEA
$641
9/1Mon
1 stopKorean Air
22h 15mSEA-BKK
9/17Wed
1 stopKorean Air
25h 10mBKK-SEA
$647
9/1Mon
1 stopAsiana Airlines
30h 50mSEA-SGN
9/21Sun
1 stopAsiana Airlines
26h 25mSGN-SEA
$656
9/2Tue
1 stopUnited Airlines
22h 05mSEA-BKK
10/7Tue
1 stopUnited Airlines
18h 50mBKK-SEA
$663
1/5Mon
1 stopAsiana Airlines
30h 55mSEA-BKK
1/20Tue
1 stopAsiana Airlines
29h 00mBKK-SEA
$666
8/26Tue
2 stopsUnited Airlines
32h 10mSEA-BKK
9/17Wed
1 stopUnited Airlines
18h 50mBKK-SEA
$668

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Recent one-way flight deals

9/18Thu
nonstopSingapore Airlines
16h 20mSEA-SIN
$267
11/30Sun
1 stopSingapore Airlines
35h 15mSEA-SGN
$280
10/21Tue
1 stopKorean Air
20h 35mSEA-BKK
$344
9/1Mon
1 stopKorean Air
33h 45mSEA-SGN
$345
10/6Mon
1 stopAsiana Airlines
30h 50mSEA-SGN
$356
8/17Sun
1 stopAsiana Airlines
18h 15mSEA-SGN
$357
9/8Mon
2 stopsUnited Airlines
23h 19mSEA-MNL
$362
8/26Tue
2 stopsANA
28h 35mSEA-BKK
$366
11/6Thu
1 stopUnited Airlines
39h 10mSEA-SGN
$367
8/25Mon
2 stopsANA
38h 20mSEA-SGN
$370

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Last minute flights from Washington to Southeast Asia

Last minute flight, train and bus deals

7/15Tue
multi-stopAsiana Airlines
40h 00mSEA-SIN
7/23Wed
multi-stopAsiana Airlines
28h 55mSIN-SEA
$783
7/15Tue
multi-stopKorean Air
19h 39mSEA-MNL
7/22Tue
multi-stopKorean Air
26h 20mMNL-SEA
$784
7/14Mon
multi-stopANA
22h 05mSEA-BKK
7/27Sun
multi-stopANA
30h 50mBKK-SEA
$795
7/12Sat
multi-stopANA
26h 15mSEA-BKK
7/20Sun
multi-stopANA
38h 30mBKK-SEA
$821
7/13Sun
multi-stop
17h 05mSEA-MNL
7/30Wed
multi-stop
26h 35mMNL-SEA
$838
7/13Sun
multi-stopAir Canada
25h 10mSEA-SIN
7/23Wed
multi-stopAir Canada
21h 51mSIN-SEA
$876
7/15Tue
multi-stopUnited Airlines
45h 05mSEA-SIN
7/23Wed
multi-stopUnited Airlines
19h 40mSIN-SEA
$881
7/13Sun
multi-stop
26h 10mSEA-KUL
7/20Sun
multi-stop
39h 10mKUL-SEA
$891
7/12Sat
multi-stopUnited Airlines
40h 41mSEA-BKK
7/20Sun
multi-stopUnited Airlines
31h 59mBKK-SEA
$893
7/13Sun
multi-stopAir Canada
28h 15mSEA-SIN
7/23Wed
multi-stopAir Canada
21h 51mSIN-SEA
$914

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Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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