SIN - WAS

S$ 570 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 26-1. 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

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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.

Sun, 14 Sep - Thu, 18 Sep
Air Canada Logo
09:10 - 09:38SIN-IAD
36h 28m2 stops
Air Canada Logo
13:00 - 07:05IAD-SIN
30h 05m2 stops
S$ 1,245Air Canada
Find Deal
Sun, 14 Sep - Thu, 18 Sep
Air Canada Logo
09:10 - 08:59SIN-DCA
35h 49m2 stops
Air Canada Logo
09:40 - 07:05DCA-SIN
33h 25m2 stops
S$ 1,245Air Canada
Find Deal
Sun, 14 Sep - Thu, 18 Sep
Air Canada Logo
09:10 - 09:38SIN-IAD
36h 28m2 stops
Air Canada Logo
13:00 - 07:05IAD-SIN
30h 05m2 stops
S$ 1,246Air Canada
Find Deal
Tue, 30 Sep - Tue, 7 Oct
Turkish Airlines Logo
10:15 - 11:45SIN-IAD
37h 30m1 stop
Turkish Airlines Logo
13:30 - 08:45IAD-SIN
31h 15m1 stop
S$ 1,280Turkish Airlines
Find Deal
Tue, 30 Sep - Tue, 7 Oct
IndiGo Logo
19:45 - 19:45SIN-IAD
36h 00m2 stops
IndiGo Logo
21:40 - 17:15IAD-SIN
31h 35m2 stops
S$ 1,282IndiGo
Find Deal
Fri, 17 Oct - Fri, 24 Oct
Turkish Airlines Logo
10:15 - 11:45SIN-IAD
37h 30m1 stop
Turkish Airlines Logo
21:40 - 08:45IAD-SIN
23h 05m1 stop
S$ 1,309Turkish Airlines
Find Deal
Sat, 18 Oct - Sat, 25 Oct
 Logo
21:20 - 06:35SIN-BWI
45h 15m3 stops
 Logo
05:35 - 23:40BWI-SIN
30h 05m2 stops
S$ 1,339
Find Deal
Sun, 23 Nov - Mon, 8 Dec
 Logo
14:25 - 06:18SIN-IAD
28h 53m2 stops
 Logo
18:30 - 13:05IAD-SIN
29h 35m2 stops
S$ 1,341
Find Deal
Tue, 30 Sep - Tue, 7 Oct
United Airlines Logo
11:05 - 15:35SIN-IAD
40h 30m1 stop
United Airlines Logo
13:20 - 06:15IAD-SIN
28h 55m2 stops
S$ 1,483United Airlines
Find Deal
Wed, 1 Oct - Wed, 8 Oct
United Airlines Logo
20:40 - 08:15SIN-IAD
23h 35m1 stop
United Airlines Logo
13:20 - 06:15IAD-SIN
28h 55m2 stops
S$ 1,519United Airlines
Find Deal
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.?

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$ 1,251 (return) on average. On the other hand, the most expensive months are July and October, where the average cost of round-trip tickets is S$ 1,837 and S$ 1,801 respectively.

Good to know

Low seasonFebruary
Cheapest flightS$ 570
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 5% 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$ 443 for a one-way ticket and S$ 967 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 is the only airline alliance operating flights between Singapore and Washington, D.C..

  • 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 8937 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

IAD with the archaic people movers is just a place to be avoided.

10.0 ExcellentThomas, Aug 2025CMH - IAD
Read more United Airlines reviews

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.