SIN - WAS

S$ 744 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 16-4. 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$ 1,193
Typical prices: S$ 1,437-S$ 1,695
Air China
Fri 17-4Fri 24-4
SIN - IAD • 1 stop
Cheapest one-way flight
S$ 744
Typical prices: S$ 535-S$ 781
Multiple Airlines
Thu 16-4
SIN - IAD • 2 stops
Top airlines
Air China
Cheapest • from S$ 1,193 (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
New Delhi (DEL)
Cheapest • Avg S$ 1,349 (return)
Incheon (ICN)
Shortest trip • 21h 32m (one-way)
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 27% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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.

Fri, 17 Apr - Fri, 24 Apr
Air China Logo
09:00 - 19:30
SIN
-
IAD
22h 30m
1 stop
Air China Logo
23:00 - 16:25
IAD
-
SIN
29h 25m
1 stop
S$ 1,193Air China
Thu, 16 Apr - Tue, 21 Apr
Air China Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
Air China Logo
23:00 - 21:55
IAD
-
SIN
34h 55m
1 stop
S$ 1,308Air China
Sun, 17 May - Thu, 21 May
Turkish Airlines Logo
10:25 - 11:35
SIN
-
IAD
37h 10m
1 stop
Turkish Airlines Logo
13:20 - 09:30
IAD
-
SIN
32h 10m
1 stop
S$ 1,358Turkish Airlines
Fri, 17 Apr - Fri, 24 Apr
Air China Logo
09:00 - 19:30
SIN
-
IAD
22h 30m
1 stop
Air China Logo
23:00 - 16:25
IAD
-
SIN
29h 25m
1 stop
S$ 1,378Air China
Thu, 16 Apr - Tue, 21 Apr
Air China Logo
18:10 - 19:30
SIN
-
IAD
37h 20m
2 stops
Air China Logo
23:00 - 21:55
IAD
-
SIN
34h 55m
1 stop
S$ 1,383Air China
Tue, 1 Sep - Wed, 30 Sep
Multiple Airlines Logo
13:10 - 06:21
SIN
-
BWI
29h 11m
2 stops
Multiple Airlines Logo
18:11 - 13:55
BWI
-
SIN
31h 44m
2 stops
S$ 1,391Multiple Airlines
Sat, 2 May - Sun, 10 May
Multiple Airlines Logo
02:35 - 09:45
SIN
-
IAD
43h 10m
2 stops
Multiple Airlines Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
S$ 1,392Multiple Airlines
Mon, 4 May - Mon, 11 May
United Airlines Logo
09:00 - 01:24
SIN
-
IAD
28h 24m
1 stop
United Airlines Logo
22:30 - 18:35
IAD
-
SIN
32h 05m
2 stops
S$ 1,414United Airlines
Tue, 1 Sep - Wed, 30 Sep
STARLUX Airlines Logo
14:10 - 07:28
SIN
-
IAD
29h 18m
2 stops
STARLUX Airlines Logo
17:38 - 12:40
IAD
-
SIN
31h 02m
2 stops
S$ 1,421STARLUX Airlines
Tue, 1 Sep - Wed, 30 Sep
United Airlines Logo
20:35 - 11:45
SIN
-
BWI
27h 10m
2 stops
United Airlines Logo
18:31 - 06:15
BWI
-
SIN
23h 44m
1 stop
S$ 1,567United 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$ 1,194 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is S$ 2,267 and S$ 1,944 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flightS$ 744
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 16% 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 3 days, the lowest price for a flight from Singapore to Washington, D.C. was S$ 744 for a one-way ticket and S$ 1,193 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.?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Singapore and Washington, D.C., with SkyTeam 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 9450 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

8.0 ExcellentMatthew, Mar 2026
CDG - IAD
Read more United Airlines reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

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

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

Information on your arrival and departure airports

Singapore (SIN)