WAS - SIN

S$ 589 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 4-12. 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 47,946,175 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
10:00 - 21:45IAD-SIN
22h 45m1 stop
23:00 - 07:50SIN-IAD
44h 50m1 stop
S$ 1,077Air India
Find Deal
Fr, 7 Mrz - So, 16 Mrz
14:00 - 08:45IAD-SIN
29h 45m1 stop
23:25 - 12:15SIN-IAD
25h 50m1 stop
S$ 1,095Turkish Airlines
Find Deal
Di, 3 Dez - Di, 10 Dez
11:15 - 21:45IAD-SIN
22h 30m1 stop
08:35 - 07:15SIN-IAD
34h 40m1 stop
S$ 1,097Air India
Find Deal
Sa, 12 Apr - Sa, 19 Apr
20:05 - 14:55IAD-SIN
29h 50m1 stop
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,285Qatar Airways
Find Deal
Di, 11 Feb - Di, 18 Feb
21:30 - 11:30IAD-SIN
25h 00m2 stops
19:25 - 17:25SIN-IAD
34h 00m1 stop
S$ 1,290
Find Deal
Mo, 3 Mrz - Mi, 12 Mrz
22:00 - 09:45IAD-SIN
23h 45m1 stop
20:55 - 16:35SIN-IAD
31h 40m1 stop
S$ 1,307Etihad Airways
Find Deal
Di, 13 Mai - Mi, 28 Mai
14:00 - 08:45IAD-SIN
29h 45m1 stop
17:00 - 14:45SIN-IAD
34h 45m1 stop
S$ 1,315
Find Deal
Mi, 4 Dez - Sa, 7 Dez
20:05 - 14:55IAD-SIN
29h 50m1 stop
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,333Qatar Airways
Find Deal
Mo, 17 Feb - Sa, 22 Feb
14:00 - 17:20IAD-SIN
38h 20m2 stops
19:40 - 20:30SIN-IAD
36h 50m2 stops
S$ 1,439IndiGo
Find Deal
Di, 4 Mrz - Fr, 28 Mrz
21:25 - 17:20IAD-SIN
30h 55m2 stops
19:40 - 20:30SIN-IAD
36h 50m2 stops
S$ 1,564IndiGo
Find Deal
Mo, 3 Mrz - Mo, 17 Mrz
14:00 - 08:45IAD-SIN
29h 45m1 stop
S$ 589Turkish Airlines
Find Deal
Mi, 4 Dez
18:00 - 23:10DCA-SIN
40h 10m3 stops
S$ 620
Find Deal
Fr, 7 Feb
10:00 - 08:10IAD-SIN
33h 10m1 stop
S$ 648Air India
Find Deal
Di, 25 Feb
11:00 - 08:10IAD-SIN
33h 10m1 stop
S$ 698Air India
Find Deal
Di, 18 Mrz
21:25 - 17:20IAD-SIN
30h 55m2 stops
S$ 775IndiGo
Find Deal
Mi, 26 Feb
21:25 - 17:20IAD-SIN
30h 55m2 stops
S$ 789IndiGo
Find Deal
Di, 7 Jan
09:29 - 05:40DCA-SIN
31h 11m2 stops
S$ 818Cathay Pacific
Find Deal
Di, 7 Jan
06:59 - 00:25DCA-SIN
29h 26m2 stops
S$ 868Cathay Pacific
Find Deal
Di, 18 Mrz
06:59 - 20:45DCA-SIN
25h 46m2 stops
S$ 899American Airlines
Find Deal
So, 6 Apr
06:03 - 00:50BWI-SIN
29h 47m2 stops
S$ 946American Airlines
Find Deal
Mo, 2 Dez
21:25 - 08:45IAD-SIN
22h 20m1 stop
10:25 - 12:15SIN-IAD
38h 50m1 stop
S$ 1,284Turkish Airlines
Find Deal
So, 24 Nov - Fr, 6 Dez
21:25 - 08:45IAD-SIN
22h 20m1 stop
05:05 - 12:15SIN-IAD
44h 10m1 stop
S$ 1,296Turkish Airlines
Find Deal
So, 24 Nov - So, 8 Dez
21:25 - 08:45IAD-SIN
22h 20m1 stop
23:25 - 12:15SIN-IAD
25h 50m1 stop
S$ 1,355Turkish Airlines
Find Deal
So, 24 Nov - Do, 5 Dez
21:25 - 08:45IAD-SIN
22h 20m1 stop
17:00 - 14:45SIN-IAD
34h 45m1 stop
S$ 1,404
Find Deal
So, 24 Nov - Sa, 7 Dez
20:05 - 14:55IAD-SIN
29h 50m1 stop
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,576Qatar Airways
Find Deal
Fr, 22 Nov - Di, 3 Dez
20:05 - 14:55IAD-SIN
29h 50m1 stop
10:15 - 15:55SIN-IAD
42h 40m1 stop
S$ 1,580Qatar Airways
Find Deal
Fr, 22 Nov - Mo, 9 Dez
08:40 - 08:00BWI-SIN
34h 20m1 stop
22:20 - 07:00SIN-BWI
21h 40m1 stop
S$ 1,591United Airlines
Find Deal
Mo, 25 Nov - Do, 5 Dez
17:59 - 08:00DCA-SIN
25h 01m1 stop
10:10 - 23:46SIN-DCA
26h 36m2 stops
S$ 1,591United Airlines
Find Deal
Mo, 25 Nov - Do, 5 Dez
08:36 - 06:40DCA-SIN
33h 04m2 stops
02:20 - 14:41SIN-DCA
25h 21m2 stops
S$ 1,638
Find Deal
Mo, 25 Nov - Mi, 4 Dez
17:58 - 17:25DCA-SIN
34h 27m2 stops
02:20 - 16:25SIN-DCA
27h 05m2 stops
S$ 1,651Japan Airlines
Find Deal
So, 24 Nov - Di, 3 Dez

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 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$ 1,359 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is S$ 2,385 and S$ 2,229 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 79 days before departure.

Good to know

Low season

October

High season

July

Cheapest flight

S$ 589
Best time to beat the crowds (20% 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$ 439 for a one-way ticket and S$ 803 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.
4-12Mi
1 stopTurkish Airlines
29h 45mIAD-SIN
S$ 589
7-2Fr
3 stops
40h 10mDCA-SIN
S$ 620
25-2Di
1 stopAir India
33h 10mIAD-SIN
S$ 648
18-3Di
1 stopAir India
33h 10mIAD-SIN
S$ 698
26-2Mi
2 stopsIndiGo
30h 55mIAD-SIN
S$ 775
7-1Di
2 stopsIndiGo
30h 55mIAD-SIN
S$ 789
7-1Di
2 stopsCathay Pacific
31h 11mDCA-SIN
S$ 818
18-3Di
2 stopsCathay Pacific
29h 26mDCA-SIN
S$ 868
6-4So
2 stopsAmerican Airlines
25h 46mDCA-SIN
S$ 899
2-12Mo
2 stopsAmerican Airlines
29h 47mBWI-SIN
S$ 946

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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.
24-11So
multi-stopTurkish Airlines
22h 20mIAD-SIN
6-12Fr
multi-stopTurkish Airlines
38h 50mSIN-IAD
S$ 1,284
24-11So
multi-stopTurkish Airlines
22h 20mIAD-SIN
8-12So
multi-stopTurkish Airlines
44h 10mSIN-IAD
S$ 1,296
24-11So
multi-stopTurkish Airlines
22h 20mIAD-SIN
5-12Do
multi-stopTurkish Airlines
25h 50mSIN-IAD
S$ 1,355
24-11So
multi-stop
22h 20mIAD-SIN
7-12Sa
multi-stop
34h 45mSIN-IAD
S$ 1,404
22-11Fr
multi-stopQatar Airways
29h 50mIAD-SIN
3-12Di
multi-stopQatar Airways
25h 40mSIN-IAD
S$ 1,576
22-11Fr
multi-stopQatar Airways
29h 50mIAD-SIN
9-12Mo
multi-stopQatar Airways
42h 40mSIN-IAD
S$ 1,580
25-11Mo
multi-stopUnited Airlines
34h 20mBWI-SIN
5-12Do
multi-stopUnited Airlines
21h 40mSIN-BWI
S$ 1,591
25-11Mo
multi-stopUnited Airlines
25h 01mDCA-SIN
5-12Do
multi-stopUnited Airlines
26h 36mSIN-DCA
S$ 1,591
25-11Mo
multi-stop
33h 04mDCA-SIN
4-12Mi
multi-stop
25h 21mSIN-DCA
S$ 1,638
24-11So
multi-stopJapan Airlines
34h 27mDCA-SIN
3-12Di
multi-stopJapan Airlines
27h 05mSIN-DCA
S$ 1,651

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Search by price

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

Information on your arrival and departure airports

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