SIN - WAS

S$ 613 Find Cheap Flights from Singapore to Washington, D.C.

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 26-3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Washington, D.C., 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 Singapore to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest return fare
S$ 1,218
Typical prices: S$ 1,191-S$ 1,478
Air China
Mon 2-3Fri 6-3
SIN - IAD • 1 stop
Cheapest one-way flight
S$ 613
Typical prices: S$ 618-S$ 1,191
Air China
Thu 26-3
SIN - IAD • 1 stop
Top airlines
Air China
Cheapest • from S$ 1,218 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 15% price drop
January
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, 2 Mar - Fri, 6 Mar
Air China Logo
17:55 - 18:30
SIN
-
IAD
37h 35m
1 stop
Air China Logo
22:00 - 16:25
IAD
-
SIN
29h 25m
1 stop
S$ 1,218Air China
Wed, 4 Mar - Tue, 17 Mar
Turkish Airlines Logo
11:40 - 19:20
SIN
-
IAD
44h 40m
1 stop
Turkish Airlines Logo
22:15 - 08:35
IAD
-
SIN
22h 20m
1 stop
S$ 1,239Turkish Airlines
Wed, 4 Mar - Tue, 17 Mar
Air China Logo
17:50 - 18:30
SIN
-
IAD
61h 40m
2 stops
Air China Logo
23:00 - 16:25
IAD
-
SIN
29h 25m
1 stop
S$ 1,253Air China
Thu, 12 Mar - Thu, 19 Mar
Multiple Airlines Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
Multiple Airlines Logo
15:35 - 14:10
IAD
-
SIN
34h 35m
3 stops
S$ 1,265Multiple Airlines
Thu, 12 Mar - Thu, 19 Mar
Multiple Airlines Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
Multiple Airlines Logo
15:35 - 06:40
IAD
-
SIN
27h 05m
2 stops
S$ 1,270Multiple Airlines
Sun, 1 Mar - Thu, 30 Apr
Turkish Airlines Logo
10:15 - 19:20
SIN
-
IAD
46h 05m
1 stop
Turkish Airlines Logo
21:45 - 09:30
IAD
-
SIN
23h 45m
1 stop
S$ 1,281Turkish Airlines
Thu, 12 Mar - Thu, 19 Mar
Air Canada Logo
08:50 - 19:45
SIN
-
DCA
22h 55m
2 stops
Air Canada Logo
09:40 - 07:00
DCA
-
SIN
33h 20m
2 stops
S$ 1,428Air Canada
Thu, 12 Mar - Thu, 19 Mar
Air Canada Logo
08:50 - 19:45
SIN
-
DCA
22h 55m
2 stops
Air Canada Logo
09:40 - 07:00
DCA
-
SIN
33h 20m
2 stops
S$ 1,459Air Canada
Thu, 12 Feb - Fri, 20 Feb
United Airlines Logo
22:20 - 11:35
SIN
-
DCA
26h 15m
2 stops
United Airlines Logo
12:00 - 08:00
DCA
-
SIN
31h 00m
2 stops
S$ 1,497United Airlines
Thu, 12 Mar - Thu, 19 Mar
United Airlines Logo
10:10 - 21:45
SIN
-
DCA
23h 35m
1 stop
United Airlines Logo
15:30 - 07:00
DCA
-
SIN
27h 30m
2 stops
S$ 1,499United 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.

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 September, where tickets cost S$ 1,278 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is S$ 1,921 and S$ 1,867 respectively.

Good to know

Low seasonApril
Cheapest flightS$ 613
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly (2% more expensive 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 3 days, the lowest price for a flight from Singapore to Washington, D.C. was S$ 613 for a one-way ticket and S$ 1,218 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.?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Singapore and Washington, D.C., with oneworld 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 9210 reviews
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
Airline reviews

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

6.0 GoodMichael, Jan 2026
GVA - IAD
Read more United Airlines reviews

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

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

Information on your arrival and departure airports