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WAS - SIN

Find cheap flights from Washington, D.C. to Singapore from S$ 656

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 27-10. 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
Wed 5-6
Wed 12-6

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 42,830,901 times on KAYAK, and here's why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Singapore 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 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$ 1,241SAUDIA
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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$ 1,243SAUDIA
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Sat, 31 Aug - Sat, 14 Sep
21:50 - 08:45IAD-SIN
22h 55m1 stop
23:25 - 14:45SIN-IAD
27h 20m1 stop
S$ 1,308Turkish Airlines
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Wed, 11 Sep - Tue, 1 Oct
21:50 - 08:45IAD-SIN
22h 55m1 stop
23:25 - 13:00SIN-IAD
25h 35m1 stop
S$ 1,360Turkish Airlines
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Wed, 9 Oct - Sat, 2 Nov
11:30 - 05:30DCA-SIN
30h 00m2 stops
01:45 - 17:06SIN-DCA
27h 21m2 stops
S$ 1,443Cathay Pacific
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Thu, 5 Sep - Wed, 11 Sep
13:40 - 23:40IAD-SIN
22h 00m1 stop
10:50 - 11:15SIN-IAD
36h 25m1 stop
S$ 1,465Korean Air
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Wed, 28 Aug - Tue, 3 Sep
06:00 - 23:40IAD-SIN
29h 40m2 stops
22:30 - 11:15SIN-IAD
24h 45m1 stop
S$ 1,472Korean Air
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Wed, 28 Aug - Tue, 3 Sep
13:40 - 23:40IAD-SIN
22h 00m1 stop
22:30 - 18:53SIN-IAD
32h 23m2 stops
S$ 1,492Delta
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Tue, 20 Aug - Tue, 27 Aug
06:00 - 05:00IAD-SIN
35h 00m2 stops
22:30 - 18:53SIN-IAD
32h 23m2 stops
S$ 1,498Delta
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Mon, 12 Aug - Mon, 26 Aug
11:30 - 05:30DCA-SIN
30h 00m2 stops
06:30 - 21:14SIN-DCA
26h 44m2 stops
S$ 1,521Cathay Pacific
Find Deal
Thu, 12 Sep - Thu, 17 Oct

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 Wednesday, 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$ 1,398 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is S$ 2,560 and S$ 2,333 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 Turkish Airlines (S$ 789) and Japan Airlines (S$ 796). The cheapest round-trip tickets were found on SAUDIA (S$ 1,241) and Turkish Airlines (S$ 1,308).

Good to know

Low season

April

High season

July

Cheapest flight

S$ 656
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$ 486 for a one-way ticket and S$ 920 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 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.
27-10Sun
3 stops
34h 30mIAD-SIN
S$ 656
9-10Wed
1 stopTurkish Airlines
37h 15mIAD-SIN
S$ 789
9-10Wed
2 stopsJapan Airlines
29h 18mIAD-SIN
S$ 796
28-7Sun
2 stopsDelta
29h 40mIAD-SIN
S$ 810
28-7Sun
2 stopsKorean Air
35h 00mDCA-SIN
S$ 812
7-10Mon
1 stopQatar Airways
30h 40mIAD-SIN
S$ 824
20-5Mon
2 stopsJapan Airlines
28h 40mDCA-SIN
S$ 903
28-7Sun
1 stopKorean Air
27h 20mIAD-SIN
S$ 912
15-7Mon
2 stopsDelta
41h 15mIAD-SIN
S$ 992
22-5Wed
1 stopQatar Airways
21h 50mIAD-SIN
S$ 1,283

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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.
10-5Fri
multi-stopJetBlue
23h 55mIAD-SIN
18-5Sat
multi-stopJetBlue
25h 55mSIN-IAD
S$ 1,653
9-5Thu
multi-stopAmerican Airlines
33h 30mDCA-SIN
7-6Fri
multi-stopAmerican Airlines
32h 10mSIN-DCA
S$ 1,689
9-5Thu
multi-stopTurkish Airlines
28h 05mIAD-SIN
7-6Fri
multi-stopTurkish Airlines
40h 30mSIN-IAD
S$ 1,689
10-5Fri
multi-stopTurkish Airlines
22h 55mIAD-SIN
19-5Sun
multi-stopTurkish Airlines
45h 40mSIN-IAD
S$ 1,762
10-5Fri
multi-stopAir India
22h 30mIAD-SIN
19-5Sun
multi-stopAir India
43h 40mSIN-IAD
S$ 1,884
9-5Thu
multi-stopQatar Airways
30h 40mIAD-SIN
7-6Fri
multi-stopQatar Airways
26h 30mSIN-IAD
S$ 1,915
11-5Sat
multi-stopQatar Airways
27h 50mIAD-SIN
14-5Tue
multi-stopQatar Airways
34h 15mSIN-IAD
S$ 1,927
11-5Sat
multi-stop
35h 15mIAD-SIN
14-5Tue
multi-stop
27h 05mSIN-IAD
S$ 2,000
9-5Thu
multi-stop
35h 35mIAD-SIN
7-6Fri
multi-stop
29h 50mSIN-IAD
S$ 2,231
11-5Sat
multi-stopAir India
42h 50mIAD-SIN
22-5Wed
multi-stopAir India
43h 40mSIN-IAD
S$ 7,889

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Flights to Singapore

Destination:

Singapore (SIN)Singapore

Return flight deals:

Singapore - Washington, D.C.

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