$543 Cheap Flights from Singapore (SIN) to Washington (DCA)

View $543 flight on Thu, Jan 22, 2026Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Singapore to Washington (SIN-DCA)

Prices were available within the past 7 days and start at $543 for one-way flights and $944 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Dec 4 - Thu, Jan 15
SIN
Singapore
DCA
Washington
$944 Roundtrip, found 1 day ago
$944
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Dec 4 from Singapore to Washington, returning Thu, Jan 15, priced at $944 found 1 day ago
Air Canada
Thu, Dec 4 - Thu, Jan 15
SIN
Singapore
DCA
Washington
$987 Roundtrip, found 1 day ago
$987
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Dec 4 from Singapore to Washington, returning Thu, Jan 15, priced at $987 found 1 day ago
Air Canada
Thu, Nov 13 - Mon, Nov 24
SIN
Singapore
DCA
Washington
$998 Roundtrip, found 4 days ago
$998
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Nov 13 from Singapore to Washington, returning Mon, Nov 24, priced at $998 found 4 days ago
Air Canada
Tue, Nov 11 - Mon, Nov 24
SIN
Singapore
DCA
Washington
$1,004 Roundtrip, found 4 days ago
$1,004
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Nov 11 from Singapore to Washington, returning Mon, Nov 24, priced at $1,004 found 4 days ago
Air Canada
Tue, Jan 20 - Thu, Feb 5
SIN
Singapore
DCA
Washington
$1,035 Roundtrip, found 2 days ago
$1,035
Roundtrip
found 2 days ago
Select Air Canada flight, departing Tue, Jan 20 from Singapore to Washington, returning Thu, Feb 5, priced at $1,035 found 2 days ago
Air Canada
Thu, Dec 4 - Thu, Jan 15
SIN
Singapore
DCA
Washington
$1,038 Roundtrip, found 1 day ago
$1,038
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Dec 4 from Singapore to Washington, returning Thu, Jan 15, priced at $1,038 found 1 day ago
Delta
Tue, Nov 11 - Mon, Dec 1
SIN
Singapore
DCA
Washington
$1,098 Roundtrip, found 4 days ago
$1,098
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Nov 11 from Singapore to Washington, returning Mon, Dec 1, priced at $1,098 found 4 days ago
United
Mon, Nov 10 - Tue, Nov 18
SIN
Singapore
DCA
Washington
$1,127 Roundtrip, found 4 days ago
$1,127
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Singapore to Washington, returning Tue, Nov 18, priced at $1,127 found 4 days ago
Singapore Airlines
Sun, Feb 1 - Sat, Feb 7
SIN
Singapore
DCA
Washington
$1,145 Roundtrip, just found
$1,145
Roundtrip
just found
Select Singapore Airlines flight, departing Sun, Feb 1 from Singapore to Washington, returning Sat, Feb 7, priced at $1,145 just found
Japan Airlines
Thu, Jan 29 - Wed, Feb 4
SIN
Singapore
DCA
Washington
$1,170 Roundtrip, just found
$1,170
Roundtrip
just found
Select Japan Airlines flight, departing Thu, Jan 29 from Singapore to Washington, returning Wed, Feb 4, priced at $1,170 just found

Alternative airports near Washington

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

Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $1,616
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $1,616

Frequently asked questions

How much does a flight from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA) cost?
Get a cheap one-way flight from $543 or cheap return flight from $944 from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)?
December is the most affordable month to fly from SIN to DCA. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)?
To find the cheapest airline that'll fly you from SIN to DCA, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)?
There aren't any daily direct flights departing from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SIN to DCA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)?
Choose a flight from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA) last-minute?
Booking your plane ticket from SIN to DCA shortly before your getaway is usually more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a SIN to DCA flight and hotel package?
You can save money by securing a SIN to DCA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your preferred accommodations and flights, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Changi Airport (SIN) to Ronald Reagan Washington National Airport (DCA)?
If you booked your SIN to DCA flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Changi
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Japan Airlines, United
Roundtrip price
$943
Distance
9657 mi

Book with confidence

Singapore to Washington Flights

The cheapest times to fly from Singapore to Washington

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 Singapore to Washington are during the month of December. You can find some of the cheapest flights from Singapore to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Singapore to Washington

Sunday is one of the best days to book for cheap flights from Singapore to Washington: 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 Singapore to Washington

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 Singapore to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $543 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 Singapore to Washington 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 Singapore to Washington 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.

 

Singapore to Washington Flights

Explore a world of travel with Expedia

*Available to One Key members.