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Find cheap flights from Washington to Vietnam from $476

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 Vietnam departing on 7/20. 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
Tue 7/2
Tue 7/9

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In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

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Good to know

Low season

August

High season

February

Cheapest flight

$476
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Portland to Hanoi

FAQs for booking flights from Washington to Vietnam

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

    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 Vietnam.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Vietnam 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 Vietnam?

    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 Vietnam 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 Vietnam?

    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 Vietnam 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 Vietnam

Recent round-trip flight deals

10/1Tue
1 stopAsiana Airlines
18h 20mSEA-SGN
10/15Tue
1 stopAsiana Airlines
38h 40mSGN-SEA
$777
11/18Mon
1 stopAsiana Airlines
19h 00mSEA-SGN
12/4Wed
1 stopAsiana Airlines
25h 50mSGN-SEA
$793
11/4Mon
1 stopChina Airlines
18h 50mSEA-SGN
11/23Sat
1 stopChina Airlines
22h 05mSGN-SEA
$799
8/25Sun
1 stopChina Airlines
24h 40mSEA-SGN
9/12Thu
1 stopChina Airlines
23h 00mSGN-SEA
$803
9/15Sun
1 stopSTARLUX Airlines
25h 20mSEA-SGN
9/29Sun
1 stopSTARLUX Airlines
18h 20mSGN-SEA
$821
9/5Thu
1 stopKorean Air
19h 30mSEA-SGN
9/20Fri
1 stopKorean Air
20h 15mSGN-SEA
$833
8/28Wed
1 stopSTARLUX Airlines
24h 55mSEA-SGN
9/15Sun
1 stopSTARLUX Airlines
18h 20mSGN-SEA
$836
9/5Thu
2 stopsKorean Air
25h 05mSEA-SGN
9/20Fri
2 stopsKorean Air
21h 58mSGN-SEA
$849
9/3Tue
1 stopEVA Air
30h 30mSEA-SGN
10/1Tue
1 stopEVA Air
17h 35mSGN-SEA
$858
10/7Mon
1 stopEVA Air
20h 10mSEA-SGN
10/21Mon
1 stopEVA Air
31h 40mSGN-SEA
$891

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Recent one-way flight deals

7/20Sat
2 stops
44h 15mPDX-HAN
$476
9/15Sun
1 stopSTARLUX Airlines
18h 25mSEA-HAN
$481
11/11Mon
1 stopChina Airlines
26h 20mSEA-HAN
$492
9/15Sun
1 stopChina Airlines
25h 25mSEA-DAD
$510
7/11Thu
2 stopsJapan Airlines
23h 25mSEA-HAN
$524
8/22Thu
1 stopAsiana Airlines
17h 15mSEA-DAD
$524
11/12Tue
1 stopJapan Airlines
19h 20mSEA-HAN
$528
8/26Mon
2 stopsCathay Pacific
34h 56mPDX-HAN
$533
9/10Tue
1 stopAsiana Airlines
17h 15mSEA-DAD
$537
6/30Sun
2 stopsCathay Pacific
35h 30mSEA-HAN
$1,489

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Last minute flights from Washington to Vietnam

Last minute flight, train and bus deals

6/7Fri
multi-stop
41h 15mPDX-SGN
6/14Fri
multi-stop
30h 02mSGN-PDX
$1,457
6/4Tue
multi-stop
29h 20mSEA-SGN
6/6Thu
multi-stop
47h 42mSGN-SEA
$1,583
6/7Fri
multi-stop
33h 05mPDX-SGN
6/14Fri
multi-stop
39h 28mSGN-PDX
$1,608
6/4Tue
multi-stopSingapore Airlines
32h 00mSEA-SGN
6/6Thu
multi-stopSingapore Airlines
34h 37mSGN-SEA
$1,796
6/4Tue
multi-stopTurkish Airlines
31h 45mSEA-SGN
6/6Thu
multi-stopTurkish Airlines
32h 50mSGN-SEA
$1,867
6/6Thu
multi-stopCathay Pacific
33h 46mSEA-SGN
7/3Wed
multi-stopCathay Pacific
28h 31mSGN-SEA
$1,879
6/6Thu
multi-stopANA
42h 15mSEA-SGN
7/3Wed
multi-stopANA
29h 40mSGN-SEA
$2,056
6/6Thu
multi-stopANA
38h 45mSEA-SGN
7/3Wed
multi-stopANA
29h 40mSGN-SEA
$2,233
6/5Wed
multi-stopCathay Pacific
41h 32mPDX-SGN
8/3Sat
multi-stopCathay Pacific
24h 12mSGN-PDX
$2,523
6/6Thu
multi-stopSingapore Airlines
49h 55mSEA-SGN
7/3Wed
multi-stopSingapore Airlines
30h 56mSGN-SEA
$2,945

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Flights to Vietnam

Return flight deals:

Vietnam - Washington

Cabin classes: