S$ 685 Find Cheap Flights to Washington, D.C. – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 17-9. 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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Everything you should know

Cheapest return fare
S$ 1,131
Typical prices: S$ 1,706-S$ 1,849
Air China
Mon 14-9Fri 18-9
SIN - IAD • 1 stop
Cheapest one-way flight
S$ 685
Typical prices: S$ 810-S$ 1,157
Air China
Thu 17-9
SIN - IAD • 1 stop
When to travel
February
Cheapest • 25% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Washington, D.C. 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 to Washington, D.C.

Mon, 14 Sep - Fri, 18 Sep
Air China Logo
23:25 - 19:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
32h 05m1 stop Beijing Capital
Air China Logo
23:00 - 16:25IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
29h 25m1 stop Beijing Capital
S$ 1,131Air China
Fri, 11 Sep - Fri, 18 Sep
Air China Logo
09:00 - 19:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
22h 30m1 stop Beijing Capital
Air China Logo
23:00 - 06:50IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
43h 50m1 stop Beijing Capital
S$ 1,165Air China
Mon, 14 Sep - Fri, 18 Sep
Air China Logo
23:25 - 19:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
32h 05m1 stop Beijing Capital
Air China Logo
23:00 - 06:50IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
43h 50m1 stop Beijing Capital
S$ 1,172Air China
Mon, 21 Sep - Sun, 27 Sep
Multiple Airlines Logo
17:55 - 19:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 35m1 stop Beijing Capital
Multiple Airlines Logo
13:15 - 19:15IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
42h 00m1 stop Incheon Intl
S$ 1,308Multiple Airlines
Wed, 14 Oct - Sun, 18 Oct
Qatar Airways Logo
03:15 - 23:59SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
32h 44m2 stops Doha Hamad Intl Seattle/Tacoma Intl
Qatar Airways Logo
21:00 - 15:45IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
30h 45m1 stop Doha Hamad Intl
S$ 1,531Qatar Airways
Wed, 23 Sep - Thu, 1 Oct
Qatar Airways Logo
03:15 - 23:59SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
32h 44m2 stops Doha Hamad Intl Seattle/Tacoma Intl
Qatar Airways Logo
11:05 - 21:15IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
22h 10m1 stop Doha Hamad Intl
S$ 1,610Qatar Airways
Sun, 25 Oct - Sun, 15 Nov
Turkish Airlines Logo
10:25 - 12:45SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
38h 20m1 stop Istanbul
Turkish Airlines Logo
21:20 - 08:45IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
22h 25m1 stop Istanbul
S$ 1,657Turkish Airlines
Sat, 6 Feb - Sun, 14 Feb
Turkish Airlines Logo
10:25 - 19:25SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
46h 00m1 stop Istanbul
Turkish Airlines Logo
21:20 - 08:45IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
22h 25m1 stop Istanbul
S$ 1,761Turkish Airlines
Tue, 15 Sep - Sat, 19 Sep
Turkish Airlines Logo
10:25 - 11:30SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
37h 05m1 stop Istanbul
Turkish Airlines Logo
13:15 - 09:30IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
32h 15m1 stop Istanbul
S$ 1,815Turkish Airlines
Mon, 14 Sep - Sat, 19 Sep
Qatar Airways Logo
03:15 - 15:40SIN  Singapore Changi-IAD Washington, D.C. Dulles Intl
24h 25m1 stop Doha Hamad Intl
Qatar Airways Logo
21:00 - 18:15IAD  Washington, D.C. Dulles Intl-SIN Singapore Changi
33h 15m2 stops Doha Hamad Intl Kuala Lumpur Intl
S$ 2,043Qatar Airways
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Washington, D.C., 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 to Washington, D.C. is February, where tickets cost S$ 1,442 on average for return flights. On the other hand, the most expensive months are November and July, where the average cost of tickets from Singapore is S$ 4,000 and S$ 1,933 respectively. For one-way flights, the best month to travel is September with an average price of S$ 961.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Washington, D.C. Reagan-National Airport (DCA), with an average flight price of S$ 216.

Find deals

Good to know – Book Cheap Washington, D.C. Plane Tickets

Low season

February

Cheapest flight

S$ 685
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 17% lower on average.
Flight from Singapore to Washington Dulles Airport

When to book flights to Washington, D.C.

Are your dates flexible? Find out the best times to travel to Washington, D.C. 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. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Washington, D.C. flights

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    There are 2 major airports in Washington, D.C.. The nearest airport from Washington, D.C. city centre is Reagan Washington National Airport (6 km), followed by Washington Dulles Airport (36 km).

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

    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 to Washington, D.C..

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

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

  • What is the Hacker Fare option on flights to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. 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 to Washington, D.C.?

    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 Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington, D.C.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airline flying to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Washington, D.C.? 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
United AirlinesOverall score based on 10114 reviews
7.1Entertainment
6.7Food
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

10.0 ExcellentAnonymous, Aug 2026
Read more United Airlines reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

The lounge was not accessible because it was located before the passport control, and backtracking was impossible.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Arlington
Oxon Hill
Tysons
Herndon
Bethesda
Chesapeake Beach
Linthicum Heights
Alexandria
Silver Spring
Fredericksburg
Rockville
National Harbor

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

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class Flights to Washington, D.C.
Business Class Flights to Washington, D.C.
Premium Economy Class Flights to Washington, D.C.
Economy class Flights to Washington, D.C.