S$ 575 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Singapore departing on 6-12. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Dulles Intl to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dulles Intl to Singapore

Sun, 12 Apr - Tue, 5 May
Air Canada Logo
09:55 - 00:45IAD-SIN
26h 50m2 stops
Air Canada Logo
09:10 - 11:16SIN-IAD
38h 06m2 stops
S$ 1,454Air Canada
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Thu, 22 Jan - Wed, 11 Feb
Multiple Airlines Logo
14:35 - 13:20IAD-SIN
33h 45m3 stops
Multiple Airlines Logo
02:25 - 20:29SIN-IAD
31h 04m2 stops
S$ 1,455Multiple Airlines
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Fri, 24 Apr - Mon, 4 May
Multiple Airlines Logo
13:20 - 17:20IAD-SIN
40h 00m2 stops
Multiple Airlines Logo
00:30 - 09:45SIN-IAD
45h 15m3 stops
S$ 1,459Multiple Airlines
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Wed, 12 Nov - Wed, 19 Nov
United Airlines Logo
15:59 - 08:00IAD-SIN
27h 01m2 stops
United Airlines Logo
22:20 - 06:55SIN-IAD
21h 35m1 stop
S$ 1,461United Airlines
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Sun, 30 Nov - Mon, 15 Dec
United Airlines Logo
23:55 - 20:15IAD-SIN
31h 20m2 stops
United Airlines Logo
10:10 - 19:26SIN-IAD
22h 16m1 stop
S$ 1,467United Airlines
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Thu, 5 Feb - Sat, 14 Feb
Qatar Airways Logo
20:05 - 12:55IAD-SIN
27h 50m2 stops
Qatar Airways Logo
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,474Qatar Airways
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Thu, 5 Feb - Mon, 9 Feb
Qatar Airways Logo
20:05 - 08:45IAD-SIN
23h 40m1 stop
Qatar Airways Logo
03:15 - 15:55SIN-IAD
25h 40m1 stop
S$ 1,477Qatar Airways
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Tue, 3 Mar - Wed, 18 Mar
Delta Logo
07:00 - 05:00IAD-SIN
33h 00m2 stops
Delta Logo
10:40 - 23:56SIN-IAD
25h 16m2 stops
S$ 1,480Delta
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Wed, 10 Dec - Sun, 21 Dec
Turkish Airlines Logo
13:30 - 08:45IAD-SIN
30h 15m1 stop
Turkish Airlines Logo
10:25 - 11:45SIN-IAD
38h 20m1 stop
S$ 1,483Turkish Airlines
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Thu, 26 Mar - Sat, 4 Apr
Turkish Airlines Logo
22:15 - 08:45IAD-SIN
22h 30m1 stop
Turkish Airlines Logo
23:05 - 11:35SIN-IAD
24h 30m1 stop
S$ 1,541Turkish Airlines
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Booking Insights

KAYAK's insights & trends for Dulles Intl to Singapore flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Singapore is November, when tickets cost S$ 1,280 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,347 and S$ 1,938 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Singapore?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Singapore, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Singapore, Friday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Washington, D.C. Dulles Intl Airport to Singapore, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonOctober
Cheapest flightS$ 575
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (49% more expensive on average)
Flight from Washington Dulles Airport to Singapore

FAQs - booking Singapore flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Singapore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Singapore is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport 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 from Washington Dulles Airport to Singapore with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 from Washington Dulles Airport to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Singapore?

    The cheapest time of day to fly to Singapore is generally at night, when retur flights cost S$ 1,503 on average. The most expensive time of day to fly to Singapore is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 2,032.

Reviews of the top airline flying from Dulles Intl to Singapore

 
Need help choosing which airline to fly with from Dulles Intl to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3661 reviews
7.4Comfort
7.3Food
7.4Entertainment
7.5Boarding
7.9Crew
Airline reviews

All good. Over four hours flight if provided snacks like Qatar Airways would be better

8.0 ExcellentAnonymous, Oct 2025DFW - YYC
Read more Qatar Airways reviews

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Everything you need to know for your flight from Dulles Intl to Singapore

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