S$ 575 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 6-12. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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

Thu, 12 Feb - Sun, 22 Feb
Multiple Airlines Logo
18:55 - 17:45BWI-SIN
33h 50m1 stop
Multiple Airlines Logo
23:20 - 19:19SIN-BWI
32h 59m2 stops
S$ 1,444Multiple Airlines
Find Deal
Sun, 12 Apr - Tue, 5 May
Air Canada Logo
09:55 - 00:45IAD-SIN
26h 50m2 stops
Air Canada Logo
09:10 - 11:16SIN-IAD
38h 06m2 stops
S$ 1,454Air Canada
Find Deal
Tue, 11 Nov - Tue, 18 Nov
United Airlines Logo
17:59 - 08:00DCA-SIN
25h 01m1 stop
United Airlines Logo
10:10 - 21:43SIN-DCA
24h 33m1 stop
S$ 1,460United Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
United Airlines Logo
17:59 - 08:00DCA-SIN
25h 01m1 stop
United Airlines Logo
10:10 - 21:43SIN-DCA
24h 33m1 stop
S$ 1,461United Airlines
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Cathay Pacific Logo
18:38 - 11:55DCA-SIN
28h 17m2 stops
Cathay Pacific Logo
07:40 - 18:44SIN-DCA
24h 04m2 stops
S$ 1,465Cathay Pacific
Find Deal
Fri, 6 Mar - Thu, 19 Mar
Cathay Pacific Logo
09:39 - 16:50DCA-SIN
42h 11m2 stops
Cathay Pacific Logo
07:40 - 18:57SIN-DCA
23h 17m2 stops
S$ 1,473Cathay Pacific
Find Deal
Thu, 5 Feb - Sat, 14 Feb
Qatar Airways Logo
20:05 - 12:55IAD-SIN
27h 50m2 stops
Qatar Airways Logo
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,474Qatar Airways
Find Deal
Thu, 5 Feb - Mon, 9 Feb
Qatar Airways Logo
20:05 - 08:45IAD-SIN
23h 40m1 stop
Qatar Airways Logo
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,477Qatar Airways
Find Deal
Wed, 18 Feb - Tue, 24 Feb
Singapore Airlines Logo
18:55 - 17:45BWI-SIN
33h 50m1 stop
Singapore Airlines Logo
20:45 - 16:53SIN-BWI
33h 08m1 stop
S$ 1,477Singapore Airlines
Find Deal
Sun, 22 Mar - Wed, 8 Apr
Singapore Airlines Logo
18:00 - 07:55BWI-SIN
25h 55m1 stop
Singapore Airlines Logo
20:45 - 16:47SIN-BWI
32h 02m1 stop
S$ 1,482Singapore Airlines
Find Deal
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 S$ 545, 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 August, when tickets cost S$ 951 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,478 and S$ 1,821 respectively.

What’s the cheapest day of the week to fly from Washington, D.C. to Southeast Asia?

The average price of all round-trip flights from Washington, D.C. to Southeast Asia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Southeast Asia on a Tuesday and more expensive on a Friday. On your return trip to Washington, D.C., you should consider flying back on a Friday, and avoid Tuesdays for better deals.

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 the flight from Washington, D.C. to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonAugust
Cheapest flightS$ 575
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (40% more expensive on average)
Flight from Reagan Washington National Airport to Singapore

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.

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

    The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost S$ 1,503 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 2,032.

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.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.