฿17,409 Find Cheap Flights from Washington, D.C. 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, D.C. to Southeast Asia departing on 2/9. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Best Southeast Asia Flight Deals from Washington, D.C.

Cheapest return prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops฿32,140
Chiang Mai
Chiang Mai2 stops฿33,544
Phuket City
Phuket City1 stop฿32,924
Krabi
Krabi2 stops฿34,590
Ko Samui
Ko Samui2 stops฿34,590
Bangkok
Bangkok2 stops฿32,140
Chiang Mai
Chiang Mai2 stops฿33,544
Phuket City
Phuket City1 stop฿32,924
Krabi
Krabi2 stops฿34,590
Ko Samui
Ko Samui2 stops฿34,590

Cheap Flights from Washington, D.C. to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Washington, D.C. to Southeast Asia

Tue 3 Nov - Mon 16 Nov
Multiple Airlines Logo
18:12 - 20:00
BWI
-
BKK
37h 48m
2 stops
Multiple Airlines Logo
21:10 - 05:40
BKK
-
BWI
44h 30m
2 stops
฿32,140Multiple Airlines
Tue 3 Nov - Mon 16 Nov
Singapore Airlines Logo
18:12 - 20:00
BWI
-
BKK
37h 48m
2 stops
Singapore Airlines Logo
21:10 - 05:40
BKK
-
BWI
44h 30m
2 stops
฿32,434Singapore Airlines
Wed 2 Sep - Fri 18 Sep
เอทิฮัดแอร์เวย์ Logo
15:10 - 06:40
IAD
-
HKT
28h 30m
1 stop
เอทิฮัดแอร์เวย์ Logo
09:25 - 09:45
HKT
-
IAD
35h 20m
1 stop
฿32,924เอทิฮัดแอร์เวย์
Tue 1 Sep - Fri 11 Sep
เอทิฮัดแอร์เวย์ Logo
15:10 - 23:50
IAD
-
HKT
21h 40m
1 stop
เอทิฮัดแอร์เวย์ Logo
09:25 - 09:45
HKT
-
IAD
35h 20m
1 stop
฿32,989เอทิฮัดแอร์เวย์
Fri 27 Nov - Sat 12 Dec
Qatar Airways Logo
10:40 - 19:25
IAD
-
BKK
20h 45m
1 stop
Qatar Airways Logo
20:30 - 08:20
BKK
-
IAD
23h 50m
1 stop
฿33,348Qatar Airways
Wed 2 Sep - Fri 18 Sep
Qatar Airways Logo
21:00 - 09:35
IAD
-
HKT
25h 35m
2 stops
Qatar Airways Logo
09:20 - 15:40
HKT
-
IAD
41h 20m
1 stop
฿33,544Qatar Airways
Sun 11 Oct - Mon 19 Oct
แอร์แคนาดา Logo
09:40 - 05:05
DCA
-
BKK
56h 25m
2 stops
แอร์แคนาดา Logo
07:05 - 10:20
BKK
-
DCA
38h 15m
2 stops
฿34,949แอร์แคนาดา
Tue 6 Oct - Tue 27 Oct
กัลฟ์แอร์ Logo
14:55 - 09:45
DCA
-
BKK
55h 50m
2 stops
กัลฟ์แอร์ Logo
19:15 - 22:57
BKK
-
DCA
38h 42m
2 stops
฿35,014กัลฟ์แอร์
Thu 10 Sep - Tue 15 Sep
กัลฟ์แอร์ Logo
15:36 - 09:45
DCA
-
BKK
55h 09m
2 stops
กัลฟ์แอร์ Logo
20:15 - 23:02
BKK
-
DCA
37h 47m
2 stops
฿35,047กัลฟ์แอร์
Wed 23 Sep - Mon 28 Sep
แอร์แคนาดา Logo
11:00 - 05:05
DCA
-
BKK
31h 05m
2 stops
แอร์แคนาดา Logo
07:05 - 10:20
BKK
-
DCA
38h 15m
2 stops
฿35,112แอร์แคนาดา
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Southeast Asia flights

Get data-powered insights and trends into flights from Washington, D.C. to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

Can I save money by flying with a stopover from Washington, D.C. to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of ฿15,757, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Southeast Asia is October, when tickets cost ฿32,761 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is ฿51,901 and ฿49,353 respectively.

How far in advance should I book a flight from Washington, D.C. to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Washington, D.C. to Southeast Asia, you should book around 2 weeks before departure, which saves you about 24% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight฿17,246
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (42% more expensive on average)
Flight from Washington Dulles Airport to Bangkok Suvarnabhumi Airport

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. 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 from Washington, D.C. 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, D.C. 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, D.C. to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Washington, D.C.

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