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WAS - SIN

S$ 621 Find cheap flights from Washington, D.C. to Singapore

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 Singapore departing on 2-12. 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.
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Search hundreds of travel sites at once for deals on flights to Singapore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Singapore, 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 Singapore, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,479,581 times on KAYAK, and here's why:

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Cheap flight deals from Washington, D.C. to Singapore (WAS-SIN)

 
These are the cheapest deals for flights from Washington, D.C. to Singapore currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Washington, D.C. to Singapore

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Washington, D.C. to Singapore.

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

Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Singapore found on KAYAK recently.

Recent last-minute flight deals from Washington, D.C. to Singapore

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Washington, D.C. to Singapore.

Recent direct flight deals from Washington, D.C. to Singapore

The latest deals for direct flights from Washington, D.C. to Singapore so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Washington, D.C. to Singapore

Find recent round-trip train or bus tickets from Washington, D.C. to Singapore.

All round-trip flight deals to Singapore

The cheapest plane tickets to Singapore found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
21:25 - 17:35IAD-SIN
31h 10m1 stop
23:25 - 19:30SIN-IAD
33h 05m1 stop
S$ 1,097Turkish Airlines
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Sun, 2 Feb - Mon, 17 Feb
13:30 - 08:45IAD-SIN
30h 15m1 stop
10:25 - 11:45SIN-IAD
38h 20m1 stop
S$ 1,118Turkish Airlines
Find Deal
Tue, 3 Dec - Tue, 10 Dec
14:00 - 08:45IAD-SIN
29h 45m1 stop
23:25 - 11:45SIN-IAD
25h 20m1 stop
S$ 1,129Turkish Airlines
Find Deal
Tue, 26 Nov - Tue, 3 Dec
21:05 - 08:45IAD-SIN
23h 40m1 stop
03:15 - 16:55SIN-IAD
25h 40m1 stop
S$ 1,310Qatar Airways
Find Deal
Wed, 12 Mar - Mon, 17 Mar
20:05 - 14:55IAD-SIN
29h 50m1 stop
03:15 - 16:55SIN-IAD
25h 40m1 stop
S$ 1,331Qatar Airways
Find Deal
Mon, 3 Mar - Tue, 11 Mar
21:30 - 11:30IAD-SIN
25h 00m2 stops
19:25 - 17:25SIN-IAD
34h 00m1 stop
S$ 1,371
Find Deal
Mon, 3 Mar - Wed, 12 Mar
21:25 - 08:45IAD-SIN
22h 20m1 stop
15:15 - 16:10SIN-IAD
37h 55m2 stops
S$ 1,386
Find Deal
Tue, 3 Dec - Tue, 10 Dec
20:05 - 08:45IAD-SIN
23h 40m1 stop
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,460JetBlue
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Sun, 17 Nov - Fri, 14 Feb
18:10 - 15:30IAD-SIN
32h 20m2 stops
17:00 - 14:45SIN-IAD
34h 45m1 stop
S$ 1,528SAUDIA
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Mon, 2 Dec - Sat, 7 Dec
10:35 - 21:15IAD-SIN
21h 40m1 stop
02:00 - 15:55SIN-IAD
26h 55m1 stop
S$ 1,632JetBlue
Find Deal
Fri, 15 Nov - Thu, 21 Nov
13:30 - 17:35IAD-SIN
39h 05m1 stop
S$ 621Turkish Airlines
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Mon, 2 Dec
21:25 - 17:35IAD-SIN
31h 10m1 stop
S$ 628Turkish Airlines
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Sun, 1 Dec
11:00 - 07:00IAD-SIN
32h 00m1 stop
S$ 661Air India
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Fri, 28 Mar
22:30 - 16:40IAD-SIN
30h 10m2 stops
S$ 741
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Wed, 12 Mar
22:25 - 17:20IAD-SIN
30h 55m2 stops
S$ 755IndiGo
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Mon, 10 Mar
14:30 - 17:20IAD-SIN
38h 50m2 stops
S$ 756IndiGo
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Wed, 12 Mar
10:00 - 13:20IAD-SIN
38h 20m2 stops
S$ 772
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Sun, 10 Nov
09:29 - 05:40DCA-SIN
31h 11m2 stops
S$ 806Cathay Pacific
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Tue, 7 Jan
07:00 - 00:25IAD-SIN
29h 25m2 stops
S$ 806Cathay Pacific
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Mon, 24 Mar
10:00 - 07:00IAD-SIN
32h 00m1 stop
S$ 1,154Air India
Find Deal
Sat, 4 Jan
10:35 - 21:15IAD-SIN
21h 40m1 stop
02:00 - 15:55SIN-IAD
26h 55m1 stop
S$ 1,413JetBlue
Find Deal
Sun, 3 Nov - Sun, 10 Nov
10:35 - 21:15IAD-SIN
21h 40m1 stop
02:00 - 15:55SIN-IAD
26h 55m1 stop
S$ 1,460JetBlue
Find Deal
Sun, 3 Nov - Thu, 7 Nov
10:35 - 21:15IAD-SIN
21h 40m1 stop
20:25 - 15:55SIN-IAD
32h 30m1 stop
S$ 1,464Qatar Airways
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Sun, 3 Nov - Mon, 11 Nov
10:35 - 21:15IAD-SIN
21h 40m1 stop
20:25 - 15:55SIN-IAD
32h 30m1 stop
S$ 1,511Qatar Airways
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Sun, 3 Nov - Fri, 8 Nov
22:11 - 20:15IAD-SIN
33h 04m2 stops
22:20 - 11:31SIN-IAD
26h 11m2 stops
S$ 1,574United Airlines
Find Deal
Sun, 3 Nov - Mon, 11 Nov
18:30 - 20:15BWI-SIN
36h 45m1 stop
22:20 - 07:20SIN-BWI
22h 00m1 stop
S$ 1,583United Airlines
Find Deal
Sun, 3 Nov - Mon, 11 Nov
19:45 - 06:40DCA-SIN
45h 55m2 stops
02:20 - 16:25SIN-DCA
27h 05m2 stops
S$ 1,615Japan Airlines
Find Deal
Sun, 3 Nov - Sun, 10 Nov
10:00 - 14:50IAD-SIN
39h 50m1 stop
02:00 - 19:05SIN-IAD
30h 05m2 stops
S$ 1,638Ethiopian Air
Find Deal
Sun, 3 Nov - Sun, 10 Nov
19:45 - 06:40DCA-SIN
45h 55m2 stops
02:20 - 16:25SIN-DCA
27h 05m2 stops
S$ 1,714Japan Airlines
Find Deal
Sun, 3 Nov - Thu, 7 Nov
10:00 - 14:50IAD-SIN
39h 50m1 stop
02:00 - 08:00SIN-IAD
43h 00m2 stops
S$ 1,730Ethiopian Air
Find Deal
Sun, 3 Nov - Thu, 7 Nov

Flights from Washington, D.C. to Singapore - Travel Insights & Trends

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

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

The average price of all flights from Washington, D.C. to Singapore clicked on KAYAK for each day over the last 12 months.
For Washington, D.C. to Singapore, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Singapore back to Washington, D.C., the best deals are generally found on Wednesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. to Singapore, 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 Singapore is April, where tickets cost S$ 1,351 on average. On the other hand, the most expensive months are June and December, where the average cost of tickets is S$ 2,236 and S$ 2,156 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. to Singapore, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 135 days before departure.

Good to know

Low season

April

High season

July

Cheapest flight

S$ 621
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from Washington Dulles Airport to Singapore

When to book flights from Washington, D.C. to Singapore

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Singapore

  • What is the cheapest flight from Washington, D.C. to Singapore?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Singapore was S$ 470 for a one-way ticket and S$ 830 for a return.

  • Which airports will I be using when flying from Washington, D.C. to Singapore?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Singapore. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Singapore Changi.

  • Which aircraft models fly most regularly from Washington, D.C. to Singapore?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Singapore?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Singapore, with Star Alliance being the most commonly used for this route.

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

    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 Singapore.

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

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

    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 Singapore with an airline and back to Washington, D.C. 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 Singapore?

    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 Singapore from Washington, D.C. 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, D.C. to Singapore

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Singapore found on KAYAK in the last 72 hours.
2-12Mon
1 stopTurkish Airlines
39h 05mIAD-SIN
S$ 621
1-12Sun
1 stopTurkish Airlines
31h 10mIAD-SIN
S$ 628
28-3Fri
1 stopAir India
32h 00mIAD-SIN
S$ 661
12-3Wed
2 stops
30h 10mIAD-SIN
S$ 741
10-3Mon
2 stopsIndiGo
30h 55mIAD-SIN
S$ 755
12-3Wed
2 stopsIndiGo
38h 50mIAD-SIN
S$ 756
10-11Sun
2 stops
38h 20mIAD-SIN
S$ 772
7-1Tue
2 stopsCathay Pacific
31h 11mDCA-SIN
S$ 806
24-3Mon
2 stopsCathay Pacific
29h 25mIAD-SIN
S$ 806
4-1Sat
1 stopAir India
32h 00mIAD-SIN
S$ 1,154

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Last minute flights from Washington, D.C. to Singapore

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Singapore that are departing in the next 10 days.
3-11Sun
multi-stopJetBlue
21h 40mIAD-SIN
10-11Sun
multi-stopJetBlue
26h 55mSIN-IAD
S$ 1,413
3-11Sun
multi-stopJetBlue
21h 40mIAD-SIN
7-11Thu
multi-stopJetBlue
26h 55mSIN-IAD
S$ 1,460
3-11Sun
multi-stopQatar Airways
21h 40mIAD-SIN
11-11Mon
multi-stopQatar Airways
32h 30mSIN-IAD
S$ 1,464
3-11Sun
multi-stopQatar Airways
21h 40mIAD-SIN
8-11Fri
multi-stopQatar Airways
32h 30mSIN-IAD
S$ 1,511
3-11Sun
multi-stopUnited Airlines
33h 04mIAD-SIN
11-11Mon
multi-stopUnited Airlines
26h 11mSIN-IAD
S$ 1,574
3-11Sun
multi-stopUnited Airlines
36h 45mBWI-SIN
11-11Mon
multi-stopUnited Airlines
22h 00mSIN-BWI
S$ 1,583
3-11Sun
multi-stopJapan Airlines
45h 55mDCA-SIN
10-11Sun
multi-stopJapan Airlines
27h 05mSIN-DCA
S$ 1,615
3-11Sun
multi-stopEthiopian Air
39h 50mIAD-SIN
10-11Sun
multi-stopEthiopian Air
30h 05mSIN-IAD
S$ 1,638
3-11Sun
multi-stopJapan Airlines
45h 55mDCA-SIN
7-11Thu
multi-stopJapan Airlines
27h 05mSIN-DCA
S$ 1,714
3-11Sun
multi-stopEthiopian Air
39h 50mIAD-SIN
7-11Thu
multi-stopEthiopian Air
43h 00mSIN-IAD
S$ 1,730

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

Information on your arrival and departure airports