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WAS - SIN

Find cheap flights from Washington, D.C. to Singapore from S$ 579

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 10-8. 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
Mon 17-6
Mon 24-6

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 42,332,103 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
19:10 - 15:45IAD-SIN
32h 35m1 stop
17:15 - 15:45SIN-IAD
34h 30m1 stop
S$ 1,240SAUDIA
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Sat, 31 Aug - Sat, 14 Sep
19:10 - 15:45IAD-SIN
32h 35m1 stop
17:15 - 15:45SIN-IAD
34h 30m1 stop
S$ 1,276SAUDIA
Find Deal
Sat, 31 Aug - Sat, 14 Sep
16:40 - 17:55IAD-SIN
37h 15m1 stop
23:25 - 14:45SIN-IAD
27h 20m1 stop
S$ 1,284Turkish Airlines
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Tue, 17 Sep - Wed, 25 Sep
21:50 - 17:55IAD-SIN
32h 05m1 stop
23:25 - 19:55SIN-IAD
32h 30m1 stop
S$ 1,294Turkish Airlines
Find Deal
Wed, 4 Sep - Mon, 23 Sep
13:25 - 05:00IAD-SIN
27h 35m1 stop
22:30 - 09:50SIN-IAD
24h 20m1 stop
S$ 1,315Korean Air
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Thu, 26 Sep - Tue, 5 Nov
07:10 - 05:00IAD-SIN
33h 50m2 stops
22:30 - 09:50SIN-IAD
24h 20m1 stop
S$ 1,358Delta
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Thu, 26 Sep - Tue, 5 Nov
13:25 - 23:40IAD-SIN
22h 15m1 stop
22:30 - 00:07SIN-IAD
37h 37m2 stops
S$ 1,361Korean Air
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Mon, 16 Sep - Mon, 23 Sep
13:25 - 05:00IAD-SIN
27h 35m1 stop
22:30 - 16:30SIN-IAD
30h 00m2 stops
S$ 1,366Delta
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Wed, 25 Sep - Mon, 21 Oct
10:55 - 20:45IAD-SIN
21h 50m1 stop
10:30 - 08:45SIN-IAD
34h 15m1 stop
S$ 1,426Qatar Airways
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Sun, 15 Sep - Sun, 22 Sep
21:05 - 12:55IAD-SIN
27h 50m2 stops
10:30 - 08:45SIN-IAD
34h 15m1 stop
S$ 1,508Qatar Airways
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Sun, 15 Sep - Sun, 22 Sep
19:10 - 18:55IAD-SIN
35h 45m3 stops
S$ 579
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Sat, 10 Aug
19:10 - 17:20IAD-SIN
34h 10m2 stops
S$ 622
Find Deal
Sun, 4 Aug
19:10 - 15:45IAD-SIN
32h 35m1 stop
S$ 705SAUDIA
Find Deal
Thu, 8 Aug
19:10 - 15:45IAD-SIN
32h 35m1 stop
S$ 732SAUDIA
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Sat, 3 Aug
11:50 - 05:00IAD-SIN
28h 10m1 stop
S$ 775Korean Air
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Sun, 10 Nov
13:40 - 23:40IAD-SIN
22h 00m1 stop
S$ 777Korean Air
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Wed, 7 Aug
21:50 - 17:55IAD-SIN
32h 05m1 stop
S$ 787Turkish Airlines
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Wed, 9 Oct
19:00 - 17:35DCA-SIN
34h 35m2 stops
S$ 805Japan Airlines
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Sat, 3 Aug
16:40 - 08:45IAD-SIN
28h 05m1 stop
S$ 839Turkish Airlines
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Fri, 23 Aug
08:02 - 06:45BWI-SIN
34h 43m2 stops
S$ 3,842Japan Airlines
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Tue, 29 Oct
16:40 - 17:55IAD-SIN
37h 15m1 stop
10:15 - 19:55SIN-IAD
45h 40m1 stop
S$ 1,928Turkish Airlines
Find Deal
Thu, 23 May - Thu, 30 May
10:55 - 20:45IAD-SIN
21h 50m1 stop
18:45 - 08:45SIN-IAD
26h 00m1 stop
S$ 2,038Qatar Airways
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Wed, 22 May - Tue, 4 Jun
10:55 - 00:10IAD-SIN
25h 15m2 stops
02:15 - 16:10SIN-IAD
25h 55m1 stop
S$ 2,097Qatar Airways
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Sun, 19 May - Sat, 25 May
11:15 - 08:15IAD-SIN
33h 00m2 stops
08:35 - 07:15SIN-IAD
34h 40m1 stop
S$ 2,101Air India
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Wed, 22 May - Tue, 4 Jun
07:30 - 20:45DCA-SIN
25h 15m2 stops
02:15 - 19:09SIN-DCA
28h 54m2 stops
S$ 2,169American Airlines
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Sun, 19 May - Sat, 25 May
16:00 - 10:50IAD-SIN
30h 50m3 stops
00:50 - 17:10SIN-IAD
28h 20m2 stops
S$ 2,183
Find Deal
Thu, 23 May - Wed, 29 May
16:00 - 10:50IAD-SIN
30h 50m3 stops
04:50 - 19:55SIN-IAD
27h 05m2 stops
S$ 2,197
Find Deal
Thu, 23 May - Thu, 30 May
10:55 - 00:10IAD-SIN
25h 15m2 stops
02:15 - 16:10SIN-IAD
25h 55m1 stop
S$ 2,200Qatar Airways
Find Deal
Wed, 22 May - Mon, 3 Jun
22:02 - 20:45DCA-SIN
34h 43m2 stops
18:45 - 23:24SIN-DCA
40h 39m2 stops
S$ 2,275American Airlines
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Thu, 23 May - Thu, 30 May
16:40 - 17:45IAD-SIN
37h 05m2 stops
19:45 - 19:55SIN-IAD
36h 10m2 stops
S$ 2,330IndiGo
Find Deal
Thu, 23 May - Thu, 30 May

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 Sunday is the most expensive. Flying from Singapore back to Washington, D.C., the best deals are generally found on Sunday, with Friday 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$ 1,395 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is S$ 2,558 and S$ 2,327 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 52 days before departure.

Which airlines provide the cheapest flights from Washington, D.C. to Singapore?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on SAUDIA (S$ 705) and Korean Air (S$ 775). The cheapest round-trip tickets were found on SAUDIA (S$ 1,240) and Turkish Airlines (S$ 1,284).

Good to know

Low season

April

High season

July

Cheapest flight

S$ 579
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (27% 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$ 430 for a one-way ticket and S$ 921 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Washington, D.C. and Singapore, with oneworld 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.
10-8Sat
3 stops
35h 45mIAD-SIN
S$ 579
4-8Sun
2 stops
34h 10mIAD-SIN
S$ 622
8-8Thu
1 stopSAUDIA
32h 35mIAD-SIN
S$ 705
3-8Sat
1 stopSAUDIA
32h 35mIAD-SIN
S$ 732
10-11Sun
1 stopKorean Air
28h 10mIAD-SIN
S$ 775
7-8Wed
1 stopKorean Air
22h 00mIAD-SIN
S$ 777
9-10Wed
1 stopTurkish Airlines
32h 05mIAD-SIN
S$ 787
3-8Sat
2 stopsJapan Airlines
34h 35mDCA-SIN
S$ 805
23-8Fri
1 stopTurkish Airlines
28h 05mIAD-SIN
S$ 839
29-10Tue
2 stopsJapan Airlines
34h 43mBWI-SIN
S$ 3,842

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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.
23-5Thu
multi-stopTurkish Airlines
37h 15mIAD-SIN
30-5Thu
multi-stopTurkish Airlines
45h 40mSIN-IAD
S$ 1,928
22-5Wed
multi-stopQatar Airways
21h 50mIAD-SIN
4-6Tue
multi-stopQatar Airways
26h 00mSIN-IAD
S$ 2,038
19-5Sun
multi-stopQatar Airways
25h 15mIAD-SIN
25-5Sat
multi-stopQatar Airways
25h 55mSIN-IAD
S$ 2,097
22-5Wed
multi-stopAir India
33h 00mIAD-SIN
4-6Tue
multi-stopAir India
34h 40mSIN-IAD
S$ 2,101
19-5Sun
multi-stopAmerican Airlines
25h 15mDCA-SIN
25-5Sat
multi-stopAmerican Airlines
28h 54mSIN-DCA
S$ 2,169
23-5Thu
multi-stop
30h 50mIAD-SIN
29-5Wed
multi-stop
28h 20mSIN-IAD
S$ 2,183
23-5Thu
multi-stop
30h 50mIAD-SIN
30-5Thu
multi-stop
27h 05mSIN-IAD
S$ 2,197
22-5Wed
multi-stopQatar Airways
25h 15mIAD-SIN
3-6Mon
multi-stopQatar Airways
25h 55mSIN-IAD
S$ 2,200
23-5Thu
multi-stopAmerican Airlines
34h 43mDCA-SIN
30-5Thu
multi-stopAmerican Airlines
40h 39mSIN-DCA
S$ 2,275
23-5Thu
multi-stopIndiGo
37h 05mIAD-SIN
30-5Thu
multi-stopIndiGo
36h 10mSIN-IAD
S$ 2,330

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Flights to Singapore

Destination:

Singapore (SIN)Singapore

Return flight deals:

Singapore - Washington, D.C.

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