S$ 442 Find Cheap Flights from Washington to Southeast Asia

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 Southeast Asia departing on 26-1. 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.
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Good to know

Low season

May

High season

January

Cheapest flight

S$ 442
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 17% lower on average.
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 to Southeast Asia 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 Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Southeast Asia 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 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 to Southeast Asia 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 Southeast Asia

Recent return flight deals

4-2Tue
directSingapore Airlines
17h 00mSEA-SIN
13-2Thu
directSingapore Airlines
14h 10mSIN-SEA
S$ 927
6-3Thu
directSingapore Airlines
17h 00mSEA-SIN
23-3Sun
directSingapore Airlines
14h 10mSIN-SEA
S$ 932
6-2Thu
1 stopAsiana Airlines
41h 10mSEA-SIN
23-2Sun
1 stopAsiana Airlines
25h 00mSIN-SEA
S$ 966
2-2Sun
1 stopAsiana Airlines
41h 10mSEA-SIN
6-2Thu
1 stopAsiana Airlines
27h 45mSIN-SEA
S$ 968
6-2Thu
1 stopKorean Air
21h 10mSEA-SIN
24-2Mon
1 stopKorean Air
26h 30mSIN-SEA
S$ 1,009
6-2Thu
1 stopKorean Air
21h 10mSEA-SIN
24-2Mon
1 stopKorean Air
26h 30mSIN-SEA
S$ 1,014
14-1Tue
1 stopDelta
26h 19mSEA-SIN
28-1Tue
1 stopDelta
18h 19mSIN-SEA
S$ 1,062
26-1Sun
1 stopDelta
21h 29mSEA-SIN
2-5Fri
1 stopDelta
17h 45mSIN-SEA
S$ 1,083
20-2Thu
2 stopsChina Eastern
31h 15mSEA-SIN
28-2Fri
2 stopsChina Eastern
30h 35mSIN-SEA
S$ 1,127
25-2Tue
2 stopsChina Eastern
31h 25mPDX-SIN
2-3Sun
2 stopsChina Eastern
31h 00mSIN-PDX
S$ 1,229

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Recent one-way flight deals

26-1Sun
directSingapore Airlines
17h 00mSEA-SIN
S$ 442
2-2Sun
directSingapore Airlines
17h 00mSEA-SIN
S$ 505
2-2Sun
1 stopAsiana Airlines
41h 10mSEA-SIN
S$ 522
12-2Wed
1 stopAsiana Airlines
19h 50mSEA-SIN
S$ 530
11-3Tue
1 stopKorean Air
21h 10mSEA-SIN
S$ 563
25-1Sat
3 stops
57h 27mSEA-SIN
S$ 591
16-2Sun
1 stopKorean Air
21h 10mSEA-SIN
S$ 594
4-2Tue
2 stops
39h 45mSEA-SIN
S$ 604
20-1Mon
1 stopDelta
21h 29mSEA-SIN
S$ 613
23-5Fri
2 stopsDelta
32h 00mPDX-SIN
S$ 1,028

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Search by price

Last minute flights from Washington to Southeast Asia

Last minute flight, train and bus deals

24-12Tue
multi-stopUnited Airlines
28h 33mPDX-SIN
31-12Tue
multi-stopUnited Airlines
26h 13mSIN-PDX
S$ 1,747
24-12Tue
multi-stopUnited Airlines
31h 00mPDX-SIN
31-12Tue
multi-stopUnited Airlines
38h 54mSIN-PDX
S$ 1,754
26-12Thu
multi-stopHainan Airlines
33h 25mSEA-SIN
1-1Wed
multi-stopHainan Airlines
35h 45mSIN-SEA
S$ 2,551
26-12Thu
multi-stop
42h 05mSEA-SIN
30-12Mon
multi-stop
17h 35mSIN-SEA
S$ 2,594
24-12Tue
multi-stopDelta
21h 30mSEA-SIN
27-12Fri
multi-stopDelta
27h 43mSIN-SEA
S$ 2,598
26-12Thu
multi-stopHainan Airlines
33h 25mSEA-SIN
1-1Wed
multi-stopHainan Airlines
35h 45mSIN-SEA
S$ 2,666
25-12Wed
multi-stopQatar Airways
32h 35mSEA-SIN
11-1Sat
multi-stopQatar Airways
54h 20mSIN-SEA
S$ 2,729
26-12Thu
multi-stop
34h 55mSEA-SIN
29-12Sun
multi-stop
27h 50mSIN-SEA
S$ 2,733
25-12Wed
multi-stopQatar Airways
37h 10mSEA-SIN
11-1Sat
multi-stopQatar Airways
54h 20mSIN-SEA
S$ 2,855
24-12Tue
multi-stopDelta
26h 50mPDX-SIN
30-12Mon
multi-stopDelta
36h 53mSIN-PDX
S$ 2,897

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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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