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$ 575 CHEAP FLIGHTS from Southeast Asia to Washington, D.C.

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Cheapest return fare

S$ 1,214

Typical prices: S$ 1,273-S$ 1,591

Multiple Airlines

Mon 23-3Mon 30-3

SIN - IAD • 2 stops

Cheapest one-way flight

S$ 575

Typical prices: S$ 658-S$ 1,196

Air China

Thu 26-3

SIN - IAD • 1 stop

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

Flight Deals

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

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.

Mon, 23 Mar - Mon, 30 Mar

21:15 - 10:05

SIN

IAD

48h 50m

2 stops

15:10 - 06:50

IAD

SIN

51h 40m

2 stops

S$ 1,214Multiple Airlines

Wed, 4 Mar - Wed, 11 Mar

11:40 - 19:20

SIN

IAD

44h 40m

1 stop

22:15 - 10:00

IAD

SIN

23h 45m

1 stop

S$ 1,251Turkish Airlines

Mon, 25 May - Sat, 13 Jun

01:50 - 15:45

BKK

IAD

24h 55m

1 stop

18:50 - 13:40

IAD

BKK

31h 50m

1 stop

S$ 1,298SAUDIA

Wed, 11 Mar - Tue, 24 Mar

17:50 - 19:30

SIN

IAD

61h 40m

2 stops

23:00 - 16:25

IAD

SIN

29h 25m

1 stop

S$ 1,318Air China

Sun, 10 May - Sun, 13 Sep

15:45 - 22:49

BKK

IAD

42h 04m

3 stops

10:08 - 04:35

IAD

BKK

31h 27m

2 stops

S$ 1,325United Airlines

Sun, 12 Apr - Tue, 21 Apr

18:10 - 19:30

SIN

IAD

61h 20m

2 stops

23:00 - 21:55

IAD

SIN

34h 55m

1 stop

S$ 1,332Air China

Tue, 3 Mar - Tue, 12 May

16:55 - 10:55

BKK

DCA

30h 00m

3 stops

11:55 - 09:35

DCA

BKK

34h 40m

3 stops

S$ 1,343United Airlines

Wed, 27 May - Sat, 13 Jun

01:50 - 15:45

BKK

IAD

24h 55m

1 stop

18:50 - 13:40

IAD

BKK

31h 50m

1 stop

S$ 1,346SAUDIA

Tue, 24 Feb - Mon, 2 Mar

01:35 - 19:05

BKK

IAD

29h 30m

2 stops

20:50 - 12:30

IAD

BKK

27h 40m

2 stops

S$ 1,401Ethiopian Air

Tue, 17 Feb - Wed, 25 Feb

01:35 - 19:05

BKK

IAD

29h 30m

2 stops

20:50 - 12:30

IAD

BKK

27h 40m

2 stops

S$ 1,402Ethiopian Air

Useful Info

Low season	January
High season	May
Cheapest flight	S$ 575

Best time to beat the crowds (2% less expensive on average)

Most popular time to fly and prices are also 4% 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.

7.4

United AirlinesOverall score based on 9244 reviews

7.7Boarding

7.3Comfort

8.1Crew

7.1Entertainment

6.6Food

Airline reviews

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

2.0 MediocreAnonymous, Feb 2026

CLT - IAD

Read more United Airlines reviews

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

Arlington

Linthicum Heights

Herndon

Bethesda

Chesapeake Beach

Reston

Oxon Hill

Silver Spring

Alexandria

McLean

National Harbor

Tysons

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

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Cabin class types available on flights to Southeast Asia

First Class Flights to Washington, D.C.from S$ 2,036

Business Class Flights to Washington, D.C.from S$ 4,702

Premium Economy Class Flights to Washington, D.C.from S$ 1,825

Economy class Flights to Washington, D.C.from S$ 81

S$ 678 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.

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

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

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