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

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 Southeast Asia to Washington, D.C.. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Southeast Asia is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Southeast Asia to Washington, D.C.?

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 Washington, D.C. with an airline and back to Southeast Asia with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to Washington, D.C.?

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 Washington, D.C. from Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

S$ 594 CHEAP FLIGHTS from Southeast Asia to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

...and more

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41 299 237 searches in the past 7 days on KAYAK

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

Cheapest return fare

S$ 1,250

Typical prices: S$ 1,375-S$ 1,876

Etihad Airways

Sun 1-3Thu 30-4

SIN - IAD • 1 stop

Cheapest one-way flight

S$ 594

Typical prices: S$ 870-S$ 1,124

Air China

Mon 24-11

SIN - IAD • 1 stop

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you love your trip to Washington, D.C.!

Flight Deals

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southeast Asia to Washington, D.C. 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.

Round-trip

One-way

Last minute

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

Sun, 1 Mar - Thu, 30 Apr

19:25 - 09:05SIN-IAD

26h 40m1 stop

15:35 - 09:15IAD-SIN

29h 40m1 stop

S$ 1,250Etihad Airways

Find Deal

Mon, 11 May - Tue, 30 Jun

02:00 - 05:49SIN-IAD

39h 49m2 stops

19:18 - 12:35IAD-SIN

29h 17m2 stops

S$ 1,259Multiple Airlines

Find Deal

Tue, 25 Nov - Mon, 8 Dec

08:50 - 20:54SIN-IAD

25h 04m2 stops

17:50 - 07:00IAD-SIN

48h 10m2 stops

S$ 1,280Air Canada

Find Deal

Thu, 12 Mar - Mon, 16 Mar

08:50 - 10:23SIN-DCA

37h 33m2 stops

20:40 - 07:00DCA-SIN

46h 20m2 stops

S$ 1,280Air Canada

Find Deal

Thu, 27 Nov - Fri, 16 Jan

17:15 - 18:30SIN-IAD

38h 15m1 stop

22:00 - 16:25IAD-SIN

29h 25m1 stop

S$ 1,323Air China

Find Deal

Fri, 27 Feb - Sat, 16 May

00:55 - 09:50BKK-IAD

20h 55m1 stop

13:15 - 01:05IAD-BKK

24h 50m1 stop

S$ 1,358Korean Air

Find Deal

Mon, 2 Mar - Wed, 15 Apr

16:55 - 13:07BKK-DCA

32h 12m3 stops

11:30 - 09:45DCA-BKK

35h 15m3 stops

S$ 1,359United Airlines

Find Deal

Fri, 27 Feb - Sat, 16 May

00:55 - 09:50BKK-IAD

20h 55m1 stop

13:15 - 01:05IAD-BKK

24h 50m1 stop

S$ 1,359Korean Air

Find Deal

Wed, 24 Dec - Wed, 13 May

16:55 - 21:21BKK-IAD

40h 26m3 stops

08:30 - 04:35IAD-BKK

33h 05m2 stops

S$ 1,361United Airlines

Find Deal

Mon, 15 Dec - Tue, 6 Jan

17:55 - 18:30SIN-IAD

37h 35m1 stop

22:00 - 21:55IAD-SIN

34h 55m1 stop

S$ 1,379Air China

Find Deal

Useful Info

Low season	September
High season	May
Cheapest flight	S$ 594

Best time to beat the crowds (6% less expensive on average)

Most popular time to fly and prices are also 5% lower on average.

Flight from Singapore to Washington Dulles Airport

How does KAYAK find such low prices on flights from Southeast Asia to Washington, D.C.?
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 Southeast Asia to Washington, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southeast Asia to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from 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 Southeast Asia to Washington, D.C.?
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 Washington, D.C. with an airline and back to Southeast Asia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to Washington, D.C.?
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 Washington, D.C. from Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Direct departures

Southeast Asia to Washington, D.C.

Monday

ANA, ASKY, Aer Lingus, +74 more

ANA, ASKY, +75 more

Tuesday

ANA, ASKY, Aer Lingus, +76 more

ANA, ASKY, +77 more

Wednesday

ANA, ASKY, Aer Lingus, +74 more

ANA, ASKY, +75 more

Thursday

ANA, ASKY, Aer Lingus, +75 more

ANA, ASKY, +76 more

Friday

ANA, ASKY, Aer Lingus, +75 more

ANA, ASKY, +76 more

Saturday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Sunday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

See more direct flights

Direct returns

Washington, D.C. to Southeast Asia

Monday

ANA, ASKY, Aer Lingus, +74 more

ANA, ASKY, +75 more

Tuesday

ANA, ASKY, Aer Lingus, +76 more

ANA, ASKY, +77 more

Wednesday

ANA, ASKY, Aer Lingus, +74 more

ANA, ASKY, +75 more

Thursday

ANA, ASKY, Aer Lingus, +75 more

ANA, ASKY, +76 more

Friday

ANA, ASKY, Aer Lingus, +75 more

ANA, ASKY, +76 more

Saturday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Sunday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

See more direct flights

7.4

United AirlinesOverall score based on 9017 reviews

8.1Crew

7.1Entertainment

7.7Boarding

7.3Comfort

6.6Food

Airline reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

8.0 ExcellentSemra, Nov 2025GVA - IAD

Read more United Airlines reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

Arlington

Herndon

Bethesda

Chesapeake Beach

Reston

Oxon Hill

Linthicum Heights

Silver Spring

Alexandria

Rockville

McLean

National Harbor

Tysons

Everything you need to know for your flight to Washington, D.C.

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Southeast Asia

First Class Flights to Washington, D.C.

Business Class Flights to Washington, D.C.from S$ 4,806

Prem Econ Class Flights to Washington, D.C.from S$ 883

Economy class Flights to Washington, D.C.from S$ 83

S$ 594 Find Cheap Flights from Southeast Asia to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

Everything you should know

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

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

Recent one-way flight deals from Southeast Asia to Washington, D.C.

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

Good to know

FAQs for booking flights from Southeast Asia to Washington, D.C.

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

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 Southeast Asia to Washington, D.C..

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from 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 Southeast Asia to Washington, D.C.?

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 Washington, D.C. with an airline and back to Southeast Asia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to Washington, D.C.?

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

Prefer to fly direct from Southeast Asia to Washington, D.C.?

Reviews of the top airline flying from Southeast Asia to Washington, D.C.

Travelling to a place near Washington, D.C.?

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Southeast Asia

Complete your trip to Washington, D.C. with a hotel stay or car hire

Flights to other popular destinations

Flights from domestic origins to Southeast Asia

Choose which airport to fly into in Washington, D.C.

Find deals for your return flight