$543 Find Cheap Flights from Singapore 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 11/2. 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 Singapore to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Singapore 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 round-trip flight deals from Singapore to Washington, D.C.

Fri, Sep 11 - Fri, Sep 18
Air China Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
Air China Logo
11:00 pm - 4:25 pm
IAD
-
SIN
29h 25m
1 stop
$795Air China
Fri, Sep 11 - Fri, Sep 18
Air China Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
Air China Logo
11:00 pm - 6:50 am
IAD
-
SIN
43h 50m
1 stop
$796Air China
Mon, Sep 21 - Tue, Oct 13
Air China Logo
5:55 pm - 7:30 pm
SIN
-
IAD
37h 35m
1 stop
Air China Logo
11:00 pm - 9:55 pm
IAD
-
SIN
34h 55m
1 stop
$809Air China
Sat, Sep 5 - Mon, Sep 7
Japan Airlines Logo
1:55 am - 4:29 pm
SIN
-
DCA
26h 34m
2 stops
Japan Airlines Logo
6:00 am - 6:10 am
DCA
-
SIN
36h 10m
2 stops
$1,083Japan Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
7:30 am - 5:40 am
SIN
-
IAD
34h 10m
2 stops
Multiple Airlines Logo
7:00 am - 11:55 pm
IAD
-
SIN
28h 55m
2 stops
$1,084Multiple Airlines
Mon, Oct 5 - Thu, Oct 22
Japan Airlines Logo
9:50 pm - 4:29 pm
SIN
-
DCA
30h 39m
2 stops
Japan Airlines Logo
6:00 am - 6:10 am
DCA
-
SIN
36h 10m
2 stops
$1,109Japan Airlines
Sun, Sep 6 - Mon, Sep 7
United Airlines Logo
8:45 am - 7:19 am
SIN
-
IAD
34h 34m
2 stops
United Airlines Logo
5:48 pm - 6:15 am
IAD
-
SIN
24h 27m
1 stop
$1,191United Airlines
Mon, Oct 5 - Thu, Oct 22
United Airlines Logo
8:35 pm - 11:25 am
SIN
-
IAD
26h 50m
2 stops
United Airlines Logo
6:35 am - 6:35 pm
IAD
-
SIN
24h 00m
1 stop
$1,269United Airlines
Sat, Aug 22 - Fri, Sep 4
EVA Air Logo
1:10 pm - 5:40 am
SIN
-
IAD
28h 30m
2 stops
EVA Air Logo
5:47 pm - 1:55 pm
IAD
-
SIN
32h 08m
2 stops
$1,425EVA Air
Fri, Nov 20 - Fri, Nov 27
EVA Air Logo
1:15 pm - 8:55 pm
SIN
-
IAD
20h 40m
1 stop
EVA Air Logo
11:55 pm - 12:05 pm
IAD
-
SIN
23h 10m
1 stop
$1,428EVA Air
Booking Insights

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

Get data-powered insights and trends for 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 August, where tickets cost $928 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 $3,125 and $1,508 respectively. For one-way flights, the best month to travel is December with an average price of $748.

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 Baltimore/Washington Airport (BWI), with an average flight price of $239.

Good to know

Low season

February

Cheapest flight

$543
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Singapore to Washington Dulles Airport

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 center is Reagan Washington National Airport (4 miles), followed by Washington Dulles Airport (22 miles).

  • 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 travelers 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.

  • How many direct flights to Washington, D.C. are there each week?

    Each week there are around 13,532 direct flights from within Singapore to Washington, D.C.. The most common day for departures is Sunday, with 15% of flights taking off on this day.

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 from Singapore 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 10053 reviews
6.7Food
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

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

4.0 OkayAnonymous, Jul 2026
ATH - IAD
Read more United Airlines reviews

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.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Oxon Hill
Owings Mills
Greenbelt
Glen Burnie
Edgewood
Camp Springs
Ellicott City
Chesapeake Beach
Pikesville
Colonial Beach
Hunt Valley
Lutherville Timonium
Westminster
Capitol Heights
Stevensville

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.