SIN - WAS

S$ 691 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 from Singapore to Washington, D.C. departing on 19-10. 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
1 adult, Economy, 0 bags

Save 16% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return fare
S$ 1,131
Typical prices: S$ 2,920-S$ 3,563
Air China
Mon 19-10Tue 3-11
SIN - IAD • 1 stop
Cheapest one-way flight
S$ 691
Typical prices: S$ 868-S$ 1,248
Air China
Mon 19-10
SIN - IAD • 1 stop
Top airlines
Air China
Cheapest • from S$ 1,131 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Singapore and Washington, D.C.. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Istanbul (IST)
Cheapest • Avg S$ 1,446 (return)
Taipei City (TPE)
Shortest trip • 21h 20m (one-way)
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 36% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

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

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

Mon, 19 Oct - Tue, 3 Nov
Air China Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
Air China Logo
22:00 - 21:55
IAD
-
SIN
34h 55m
1 stop
S$ 1,131Air China
Thu, 22 Oct - Fri, 30 Oct
Air China Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
Air China Logo
23:00 - 06:50
IAD
-
SIN
43h 50m
1 stop
S$ 1,208Air China
Mon, 19 Oct - Fri, 30 Oct
Air China Logo
23:25 - 19:30
SIN
-
IAD
32h 05m
1 stop
Air China Logo
23:00 - 06:50
IAD
-
SIN
43h 50m
1 stop
S$ 1,290Air China
Mon, 21 Sep - Mon, 28 Sep
Multiple Airlines Logo
23:25 - 19:30
SIN
-
IAD
32h 05m
1 stop
Multiple Airlines Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
S$ 1,295Multiple Airlines
Fri, 4 Sep - Fri, 11 Sep
Air China Logo
09:00 - 19:30
SIN
-
IAD
22h 30m
1 stop
Air China Logo
23:00 - 06:50
IAD
-
SIN
43h 50m
1 stop
S$ 1,332Air China
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
23:25 - 19:30
SIN
-
IAD
32h 05m
1 stop
Multiple Airlines Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
S$ 1,361Multiple Airlines
Thu, 3 Sep - Tue, 15 Sep
Japan Airlines Logo
01:55 - 16:29
SIN
-
DCA
26h 34m
2 stops
Japan Airlines Logo
06:00 - 06:10
DCA
-
SIN
36h 10m
2 stops
S$ 1,427Japan Airlines
Wed, 19 Aug - Tue, 25 Aug
Japan Airlines Logo
21:50 - 16:29
SIN
-
DCA
30h 39m
2 stops
Japan Airlines Logo
08:26 - 00:20
DCA
-
SIN
27h 54m
2 stops
S$ 1,432Japan Airlines
Sun, 6 Sep - Mon, 14 Sep
American Airlines Logo
01:55 - 16:29
SIN
-
DCA
26h 34m
2 stops
American Airlines Logo
07:32 - 00:20
DCA
-
SIN
28h 48m
2 stops
S$ 1,487American Airlines
Wed, 26 Aug - Mon, 7 Sep
American Airlines Logo
01:55 - 15:02
SIN
-
BWI
25h 07m
2 stops
American Airlines Logo
11:54 - 06:10
BWI
-
SIN
30h 16m
2 stops
S$ 1,495American Airlines
Booking Insights

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

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

How much is a return flight from Singapore to Washington, D.C.?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Singapore to Washington, D.C. departing in October.

Flight prices are below average for this route right now.

Flights to Washington, D.C. from Singapore usually cost between S$ 2,130 and S$ 2,205 in October.
The lowest price found in the past 5 days was S$ 1,131 on Air China (19 Oct–3 Nov).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore 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 from Singapore to Washington, D.C. is August, where tickets cost S$ 1,198 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is S$ 4,034 and S$ 1,947 respectively.

Find deals

Good to know

Low season

February

Cheapest flight

S$ 691
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 22% lower on average.
Flight from Singapore to Washington Dulles Airport

When to book flights from Singapore to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Singapore 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. 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 Singapore to Washington, D.C.

  • What is the cheapest flight from Singapore to Washington, D.C.?

    In the last 5 days, the lowest price for a flight from Singapore to Washington, D.C. was S$ 691 for a one-way ticket and S$ 1,131 for a return.

  • Which airports will I be using when flying from Singapore to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Singapore Changi. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Singapore to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Washington, D.C.?

    Star Alliance, and oneworld are the airline alliances operating flights between Singapore and Washington, D.C., with Star Alliance being the most commonly used for this route.

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

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

    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 Washington, D.C. with an airline and back to Singapore with another airline.

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

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

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore 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 10034 reviews
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

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.

2.0 MediocreDilen, Jul 2026
EWR - DCA
Read more United Airlines reviews

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

Staff was generally seeming stressed out and was a bit rude and slow. Plane left late. Pilot was very well-spoken.

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

Customer service - staff was effective in getting my trip rescheduled

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

Information on your arrival and departure airports

Singapore (SIN)