SIN - WAS

S$ 686 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 25-12. 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$ 1,177
Overall average: S$ 1,331
IndiGo
Sat 7-3Sat 14-3
SIN - IAD • 2 stops
Cheapest one-way flight
S$ 596
Typical prices: S$ 718-S$ 1,182
Air China
Thu 25-12
SIN - IAD • 1 stop
Top airlines
IndiGo
Cheapest • from S$ 1,177 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 22% price drop
March
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.

Sat, 7 Mar - Sat, 14 Mar
IndiGo Logo
11:15 - 19:20
SIN
-
IAD
45h 05m2 stops
IndiGo Logo
22:15 - 17:20
IAD
-
SIN
31h 05m2 stops
S$ 1,177IndiGo
Thu, 29 Jan - Thu, 5 Feb
Etihad Airways Logo
19:25 - 09:05
SIN
-
IAD
26h 40m1 stop
Etihad Airways Logo
14:35 - 09:35
IAD
-
SIN
30h 00m1 stop
S$ 1,227Etihad Airways
Thu, 14 May - Sat, 8 Aug
Etihad Airways Logo
21:10 - 09:45
SIN
-
IAD
24h 35m1 stop
Etihad Airways Logo
15:35 - 09:15
IAD
-
SIN
29h 40m1 stop
S$ 1,244Etihad Airways
Fri, 30 Jan - Fri, 6 Feb
Air China Logo
09:30 - 18:30
SIN
-
IAD
22h 00m1 stop
Air China Logo
22:00 - 06:50
IAD
-
SIN
43h 50m1 stop
S$ 1,246Air China
Thu, 12 Mar - Sat, 21 Mar
Multiple Airlines Logo
17:55 - 19:30
SIN
-
IAD
37h 35m1 stop
Multiple Airlines Logo
19:10 - 15:30
IAD
-
SIN
32h 20m1 stop
S$ 1,248Multiple Airlines
Thu, 12 Mar - Sat, 21 Mar
Multiple Airlines Logo
17:55 - 19:30
SIN
-
IAD
37h 35m1 stop
Multiple Airlines Logo
22:15 - 17:20
IAD
-
SIN
31h 05m2 stops
S$ 1,256Multiple Airlines
Thu, 12 Feb - Sun, 15 Feb
Etihad Airways Logo
19:25 - 09:05
SIN
-
IAD
26h 40m1 stop
Etihad Airways Logo
14:35 - 09:35
IAD
-
SIN
30h 00m1 stop
S$ 1,270Etihad Airways
Fri, 23 Jan - Mon, 26 Jan
Turkish Airlines Logo
11:40 - 19:20
SIN
-
IAD
44h 40m1 stop
Turkish Airlines Logo
21:15 - 10:00
IAD
-
SIN
23h 45m1 stop
S$ 1,282Turkish Airlines
Thu, 29 Jan - Thu, 5 Feb
United Airlines Logo
10:00 - 21:52
SIN
-
DCA
24h 52m1 stop
United Airlines Logo
20:00 - 20:15
DCA
-
SIN
35h 15m2 stops
S$ 1,501United Airlines
Fri, 30 Jan - Fri, 6 Feb
United Airlines Logo
10:00 - 21:52
SIN
-
DCA
24h 52m1 stop
United Airlines Logo
20:00 - 20:15
DCA
-
SIN
35h 15m2 stops
S$ 1,552United 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’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$ 1,302 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is S$ 3,382 and S$ 1,957 respectively.

Good to know

Low seasonFebruary
Cheapest flightS$ 596
Best time to beat the crowds but there is an average 102% increase in price.
Most popular time to fly and prices are also 10% 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$ 596 for a one-way ticket and S$ 1,177 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 9091 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

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

6.0 GoodClaudia, Dec 2025
GUA - IAD
Read more United Airlines reviews

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

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

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

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

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

Information on your arrival and departure airports