$333 Find Cheap Flights from Washington to Southeast Asia

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Useful Info
Useful Info

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$333
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 39% increase in price.
Flight from Seattle to Ho Chi Minh City

Flights from Washington to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Southeast Asia 
Verified travelerFlew with Singapore AirlinesSEA-SINAug 2024
If you need special meals book them early
JeffFlew with Singapore AirlinesSEA-SINJan 2024
Delta & Alaska have best boarding process! Singapore airlines was ok!

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 $413.

  • 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 $651 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 $651.

  • 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 $820 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,335 and $1,293 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 13 weeks before departure.

  • How long is the flight to Southeast Asia?

    An average nonstop flight from Washington to Southeast Asia takes 24h 00m, covering a distance of 7403 miles. The shortest route is Seattle (SEA) to Manila (MNL) with an average flight time of 13h 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 (17%) and Ho Chi Minh City (9%). Searches for flights to Denpasar (6%), to Singapore (4%) and to Phnom Penh (3%) are also popular.

Book cheap flights from Washington to Southeast Asia

Recent round-trip flight deals

9/12Fri
1 stopSingapore Airlines
32h 00mSEA-BKK
11/12Wed
1 stopSingapore Airlines
30h 30mBKK-SEA
$595
8/24Sun
1 stopSingapore Airlines
40h 10mSEA-MNL
10/15Wed
1 stopSingapore Airlines
33h 40mMNL-SEA
$595
9/14Sun
1 stopAsiana Airlines
18h 30mSEA-SGN
9/27Sat
1 stopAsiana Airlines
26h 25mSGN-SEA
$651
10/22Wed
1 stopAsiana Airlines
30h 50mSEA-SGN
11/19Wed
1 stopAsiana Airlines
39h 25mSGN-SEA
$652
9/17Wed
1 stopPhilippine Airlines
22h 40mSEA-BKK
9/24Wed
1 stopPhilippine Airlines
19h 45mBKK-SEA
$688
10/12Sun
1 stopANA
39h 25mSEA-SGN
11/2Sun
2 stopsANA
34h 21mSGN-SEA
$690
9/4Thu
1 stopKorean Air
20h 09mSEA-MNL
9/17Wed
1 stopKorean Air
22h 35mMNL-SEA
$691
8/22Fri
1 stopANA
39h 25mSEA-SGN
9/16Tue
2 stopsANA
33h 21mSGN-SEA
$692
9/4Thu
2 stopsKorean Air
23h 45mSEA-MNL
9/17Wed
1 stopKorean Air
22h 35mMNL-SEA
$692
9/7Sun
1 stopPhilippine Airlines
28h 20mSEA-SIN
9/21Sun
1 stopPhilippine Airlines
23h 50mSIN-SEA
$694

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Recent one-way flight deals

8/17Sun
1 stopSingapore Airlines
38h 25mSEA-SGN
$333
8/28Thu
1 stopSingapore Airlines
40h 10mSEA-MNL
$333
7/23Wed
2 stopsJapan Airlines
31h 15mSEA-SGN
$381
8/16Sat
1 stopChina Airlines
18h 00mSEA-SGN
$383
7/29Tue
2 stopsJapan Airlines
42h 00mSEA-SGN
$384
8/5Tue
1 stopKorean Air
30h 35mSEA-MNL
$386
5/6Tue
1 stopUnited Airlines
39h 25mSEA-SGN
$387
5/9Fri
2 stopsUnited Airlines
25h 40mSEA-SGN
$391
8/28Thu
2 stopsKorean Air
23h 45mSEA-MNL
$401
8/9Sat
1 stopChina Airlines
18h 00mSEA-SGN
$409

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Last minute flights from Washington to Southeast Asia

Last minute flight, train and bus deals

5/5Mon
multi-stopAsiana Airlines
18h 30mSEA-SGN
5/19Mon
multi-stopAsiana Airlines
26h 25mSGN-SEA
$651
5/5Mon
multi-stopAsiana Airlines
18h 30mSEA-SGN
5/13Tue
multi-stopAsiana Airlines
26h 25mSGN-SEA
$653
5/4Sun
multi-stopPhilippine Airlines
24h 50mSEA-KUL
5/18Sun
multi-stopPhilippine Airlines
21h 50mKUL-SEA
$665
5/3Sat
multi-stopUnited Airlines
29h 10mSEA-SGN
5/11Sun
multi-stopUnited Airlines
29h 10mSGN-SEA
$714
5/4Sun
multi-stopANA
39h 25mSEA-SGN
5/25Sun
multi-stopANA
29h 10mSGN-SEA
$717
5/4Sun
multi-stopANA
39h 25mSEA-SGN
5/11Sun
multi-stopANA
29h 10mSGN-SEA
$718
5/1Thu
multi-stopKorean Air
39h 45mSEA-MNL
5/19Mon
multi-stopKorean Air
26h 10mMNL-SEA
$721
5/5Mon
multi-stopUnited Airlines
29h 10mSEA-SGN
5/14Wed
multi-stopUnited Airlines
36h 16mSGN-SEA
$724
5/4Sun
multi-stopKorean Air
20h 09mSEA-MNL
5/19Mon
multi-stopKorean Air
24h 30mMNL-SEA
$753
5/4Sun
multi-stopPhilippine Airlines
19h 00mSEA-SGN
5/16Fri
multi-stopPhilippine Airlines
55h 20mSGN-SEA
$827

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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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