$455 Cheap Flights from Washington (DCA) to Singapore (SIN)

View $455 flight on Tue, Aug 25, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Singapore Changi Airport (SIN)

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Cheap Flights from Washington to Singapore (DCA-SIN)

Prices were available within the past 7 days and start at $455 for one-way flights and $991 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Nov 11 - Thu, Nov 26
DCA
Washington
SIN
Singapore
$991 Roundtrip, found 2 hours ago
$991
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Wed, Nov 11 from Washington to Singapore, returning Thu, Nov 26, priced at $991 found 2 hours ago
Air Canada
Wed, Nov 11 - Thu, Nov 26
DCA
Washington
SIN
Singapore
$996 Roundtrip, found 2 hours ago
$996
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Wed, Nov 11 from Washington to Singapore, returning Thu, Nov 26, priced at $996 found 2 hours ago
Air Canada
Thu, Nov 19 - Sat, Nov 28
DCA
Washington
SIN
Singapore
$1,009 Roundtrip, found 12 hours ago
$1,009
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Thu, Nov 19 from Washington to Singapore, returning Sat, Nov 28, priced at $1,009 found 12 hours ago
Air Canada
Thu, Nov 19 - Sat, Nov 28
DCA
Washington
SIN
Singapore
$1,014 Roundtrip, found 12 hours ago
$1,014
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Thu, Nov 19 from Washington to Singapore, returning Sat, Nov 28, priced at $1,014 found 12 hours ago
Cathay Pacific
Wed, Sep 9 - Wed, Sep 23
DCA
Washington
SIN
Singapore
$1,037 Roundtrip, found 5 days ago
$1,037
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Wed, Sep 9 from Washington to Singapore, returning Wed, Sep 23, priced at $1,037 found 5 days ago
United
Tue, Apr 7 - Tue, Apr 14
DCA
Washington
SIN
Singapore
$1,177 Roundtrip, found 2 hours ago
$1,177
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Apr 7 from Washington to Singapore, returning Tue, Apr 14, priced at $1,177 found 2 hours ago
Korean Air
Mon, Oct 5 - Mon, Oct 19
DCA
Washington
SIN
Singapore
$1,196 Roundtrip, found 4 hours ago
$1,196
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Mon, Oct 5 from Washington to Singapore, returning Mon, Oct 19, priced at $1,196 found 4 hours ago
Japan Airlines
Tue, Mar 3 - Tue, Mar 10
DCA
Washington
SIN
Singapore
$1,214 Roundtrip, found 9 hours ago
$1,214
Roundtrip
found 9 hours ago
Select Japan Airlines flight, departing Tue, Mar 3 from Washington to Singapore, returning Tue, Mar 10, priced at $1,214 found 9 hours ago
All Nippon Airways
Mon, Oct 5 - Mon, Oct 19
DCA
Washington
SIN
Singapore
$1,228 Roundtrip, found 4 hours ago
$1,228
Roundtrip
found 4 hours ago
Select All Nippon Airways flight, departing Mon, Oct 5 from Washington to Singapore, returning Mon, Oct 19, priced at $1,228 found 4 hours ago
American Airlines
Tue, Apr 28 - Wed, May 6
DCA
Washington
SIN
Singapore
$1,294 Roundtrip, found 1 day ago
$1,294
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Apr 28 from Washington to Singapore, returning Wed, May 6, priced at $1,294 found 1 day ago

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Alternative airports near Singapore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Changi SIN. Cheapest option available. Average driving time to city center is 18 minutes. Flights from $1,177
SIN
Changi
Cheapest
Average driving time to city center18 min
Flights from $1,177

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN) cost?
Snag a cheap one-way flight from $455 or cheap return flight from $991 from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN)?
The cheapest month to fly from DCA to SIN is November, when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from DCA to SIN. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN)?
You'll have to catch a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from DCA to SIN?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN)?
To touch down at Changi Airport (SIN) on schedule, choose a flight that leaves Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN) last-minute?
Booking your plane ticket from DCA to SIN shortly before your getaway is typically more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to SIN flight and hotel package?
You can save money by securing a DCA to SIN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Changi Airport (SIN)?
In most instances, you can cancel or modify your DCA to SIN flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further details, visit our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Changi
Airlines serving
Air Canada, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, China Eastern Airlines, Delta, Etihad Airways, Finnair, Gulf Air, Japan Airlines, KLM, Korean Air, Qantas Airways, Qatar Airways, United
Roundtrip price
$991
Distance
9657 mi

Book with confidence

Washington to Singapore Flights

The cheapest times to fly from Washington to Singapore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Singapore are during the month of November. You can find some of the cheapest flights from Washington to Singapore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Singapore

Sunday is one of the best days to book for cheap flights from Washington to Singapore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Singapore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Singapore in 2026. You can also book with separate airlines for your outbound and return journeys, from $455 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Singapore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Singapore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Singapore Flights

*Flight schedules are subject to change.

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