SIN - WAS

S$ 663 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 29-1. 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, 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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 26% 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.

Everything you should know

Cheapest return fare
S$ 1,146
Air Canada
Tue 24-2Tue 10-3
SIN - DCA • 2 stops
Cheapest one-way flight
S$ 663
Multiple Airlines
Thu 29-1
SIN - DCA • 2 stops
Top airlines
Air Canada
Cheapest • from S$ 1,146 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 18% price drop
March
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.

Tue, 24 Feb - Tue, 10 Mar
Air Canada Logo
08:50 - 10:23SIN-DCA
38h 33m2 stops
Air Canada Logo
09:40 - 07:00DCA-SIN
33h 20m2 stops
S$ 1,146Air Canada
Find Deal
Thu, 12 Mar - Fri, 20 Mar
Air China Logo
17:55 - 19:30SIN-IAD
37h 35m1 stop
Air China Logo
23:00 - 16:25IAD-SIN
29h 25m1 stop
S$ 1,155Air China
Find Deal
Tue, 24 Feb - Tue, 10 Mar
Air Canada Logo
09:20 - 20:54SIN-IAD
24h 34m2 stops
Air Canada Logo
12:33 - 07:00IAD-SIN
30h 27m2 stops
S$ 1,163Air Canada
Find Deal
Tue, 24 Feb - Tue, 10 Mar
Etihad Airways Logo
19:25 - 09:05SIN-IAD
26h 40m1 stop
Etihad Airways Logo
15:35 - 09:35IAD-SIN
30h 00m1 stop
S$ 1,207Etihad Airways
Find Deal
Fri, 15 May - Sat, 8 Aug
Etihad Airways Logo
21:10 - 09:45SIN-IAD
24h 35m1 stop
Etihad Airways Logo
15:35 - 09:15IAD-SIN
29h 40m1 stop
S$ 1,216Etihad Airways
Find Deal
Fri, 15 May - Sat, 8 Aug
Etihad Airways Logo
21:10 - 09:45SIN-IAD
24h 35m1 stop
Etihad Airways Logo
15:35 - 09:15IAD-SIN
29h 40m1 stop
S$ 1,218Etihad Airways
Find Deal
Thu, 12 Mar - Sat, 21 Mar
Multiple Airlines Logo
14:25 - 17:59SIN-DCA
39h 34m2 stops
Multiple Airlines Logo
08:00 - 13:05DCA-SIN
41h 05m2 stops
S$ 1,377Multiple Airlines
Find Deal
Mon, 23 Feb - Tue, 10 Mar
Multiple Airlines Logo
02:00 - 05:30SIN-BWI
40h 30m2 stops
Multiple Airlines Logo
18:46 - 13:05BWI-SIN
30h 19m2 stops
S$ 1,382Multiple Airlines
Find Deal
Tue, 10 Mar - Wed, 11 Mar
United Airlines Logo
22:20 - 15:01SIN-BWI
28h 41m2 stops
United Airlines Logo
18:31 - 08:00BWI-SIN
25h 29m1 stop
S$ 1,557United Airlines
Find Deal
Tue, 10 Mar - Wed, 11 Mar
United Airlines Logo
22:20 - 15:01SIN-BWI
28h 41m2 stops
United Airlines Logo
18:31 - 08:00BWI-SIN
25h 29m1 stop
S$ 1,559United 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.?

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 February.

What’s the cheapest day of the week to fly from Singapore to Washington, D.C.?

The average price of all round-trip flights from Singapore to Washington, D.C. clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Washington, D.C. on a Friday and more expensive on a Tuesday. On your return trip to Singapore, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

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$ 1,310 (return) on average. On the other hand, the most expensive months are February and July, where the average cost of round-trip tickets is S$ 2,600 and S$ 1,851 respectively.

Good to know

Low seasonFebruary
Cheapest flightS$ 663
Best time to beat the crowds but there is an average 62% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Singapore to Reagan Washington National 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$ 663 for a one-way ticket and S$ 1,146 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 9017 reviews
6.6Food
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

8.0 ExcellentSemra, Nov 2025GVA - IAD
Read more United Airlines reviews

Great crew, excellent landing, good food. Over all great experience. Thank you!

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

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.

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

Information on your arrival and departure airports