What is the cheapest airline that flies from Washington, D.C. Reagan-National to Singapore Changi?

Cathay Pacific, Alaska Airlines, and Air Canada are the most popular carriers operating from Washington, D.C. Reagan-National to Singapore Changi

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

Prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport were last updated today.

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

As of August 2025, there is 1 operator available to choose from for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport.

What documentation or ID do you need to fly to Singapore Changi Airport?

The required travel and health documents for your Singapore Changi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore Changi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$544 Cheap Flights from Washington, D.C. Reagan-National Airport to Singapore in 2025

Q: What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Singapore?

Prices are currently low for flights on this route. Typical prices usually range from $1,363 to $1,697. The lowest price recently found on this route was $899.

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

11:05 am - 7:00 amDCA-SIN

30h 55m2 stops

8:50 am - 9:56 pmSIN-DCA

26h 06m2 stops

$899Air Canada

Find Deal

Tue, Nov 11 - Tue, Nov 18

11:05 am - 7:00 amDCA-SIN

30h 55m2 stops

8:50 am - 9:56 pmSIN-DCA

26h 06m2 stops

$935Air Canada

Find Deal

Tue, Nov 11 - Tue, Nov 18

6:59 pm - 7:10 pmDCA-SIN

36h 11m1 stop

8:45 pm - 8:59 pmSIN-DCA

36h 14m1 stop

$1,037Singapore Airlines

Find Deal

Thu, Sep 4 - Tue, Sep 16

8:00 am - 5:45 pmDCA-SIN

44h 45m1 stop

9:00 am - 9:59 pmSIN-DCA

25h 59m1 stop

$1,043Singapore Airlines

Find Deal

Mon, Nov 10 - Tue, Nov 18

8:20 am - 12:50 amDCA-SIN

28h 30m2 stops

9:45 am - 12:55 amSIN-DCA

27h 10m2 stops

$1,122Cathay Pacific

Find Deal

Thu, Sep 11 - Thu, Oct 2

6:35 pm - 1:05 pmDCA-SIN

29h 30m2 stops

1:25 am - 6:54 pmSIN-DCA

30h 29m2 stops

$1,124Cathay Pacific

Find Deal

Tue, Nov 11 - Mon, Nov 17

9:40 am - 9:40 amDCA-SIN

36h 00m3 stops

9:10 pm - 6:04 pmSIN-DCA

32h 54m3 stops

$1,130

Find Deal

Mon, Sep 15 - Mon, Sep 22

9:40 am - 9:40 amDCA-SIN

36h 00m3 stops

9:10 pm - 6:04 pmSIN-DCA

32h 54m3 stops

$1,132

Find Deal

Mon, Sep 15 - Mon, Sep 22

7:00 am - 6:25 pmDCA-SIN

23h 25m1 stop

8:40 pm - 10:58 amSIN-DCA

26h 18m2 stops

$1,209United Airlines

Find Deal

Mon, Sep 15 - Mon, Sep 22

5:59 pm - 6:15 amDCA-SIN

24h 16m1 stop

8:45 am - 9:51 pmSIN-DCA

25h 06m1 stop

$1,213United Airlines

Find Deal

Wed, Sep 10 - Thu, Sep 25

Air Canada flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets

Air Canada

Nov 11

DCA11:05 amWashington, D.C. Reagan-National

30h 55m

2 stops

SIN7:00 amSingapore Changi

Nov 18

SIN8:50 amSingapore Changi

26h 06m

2 stops

DCA9:56 pmWashington, D.C. Reagan-National

$899

Find similar

Air Canada

Nov 11

DCA11:05 amWashington, D.C. Reagan-National

30h 55m

2 stops

SIN7:00 amSingapore Changi

Nov 18

SIN8:50 amSingapore Changi

26h 06m

2 stops

DCA9:56 pmWashington, D.C. Reagan-National

$935

Find similar

Air Canada

Nov 11

DCA11:05 amWashington, D.C. Reagan-National

30h 55m

2 stops

SIN7:00 amSingapore Changi

Nov 18

SIN8:50 amSingapore Changi

26h 06m

2 stops

DCA9:56 pmWashington, D.C. Reagan-National

$936

Find similar

Singapore Airlines flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Singapore Airlines deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets

Singapore Airlines

Sep 4

DCA6:59 pmWashington, D.C. Reagan-National

36h 11m

1 stop

SIN7:10 pmSingapore Changi

Sep 16

SIN8:45 pmSingapore Changi

36h 14m

1 stop

DCA8:59 pmWashington, D.C. Reagan-National

$1,037

Find similar

Singapore Airlines

Nov 10

DCA8:00 amWashington, D.C. Reagan-National

44h 45m

1 stop

SIN5:45 pmSingapore Changi

Nov 18

SIN9:00 amSingapore Changi

25h 59m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

$1,043

Find similar

Singapore Airlines

Nov 12

DCA9:59 amWashington, D.C. Reagan-National

30h 31m

1 stop

SIN5:30 amSingapore Changi

Nov 18

SIN9:00 amSingapore Changi

25h 59m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

$1,045

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/11

11:05 am-7:00 am

2 stops30h 55m

Singapore Changi

Tue 11/18

8:50 am-9:56 pm

2 stops26h 06m

$899

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/11

11:05 am-7:00 am

2 stops30h 55m

Singapore Changi

Tue 11/18

8:50 am-9:56 pm

2 stops26h 06m

$935

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9/4

6:59 pm-7:10 pm

1 stop36h 11m

Singapore Changi

Tue 9/16

8:45 pm-8:59 pm

1 stop36h 14m

$1,037

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 11/10

8:00 am-5:45 pm

1 stop44h 45m

Singapore Changi

Tue 11/18

9:00 am-9:59 pm

1 stop25h 59m

$1,043

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9/11

8:20 am-12:50 am

2 stops28h 30m

Singapore Changi

Thu 10/2

9:45 am-12:55 am

2 stops27h 10m

$1,122

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/11

6:35 pm-1:05 pm

2 stops29h 30m

Singapore Changi

Mon 11/17

1:25 am-6:54 pm

2 stops30h 29m

$1,124

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/15

9:40 am-9:40 am

3 stops36h 00m

Singapore Changi

Mon 9/22

9:10 pm-6:04 pm

3 stops32h 54m

$1,130

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/15

9:40 am-9:40 am

3 stops36h 00m

Singapore Changi

Mon 9/22

9:10 pm-6:04 pm

3 stops32h 54m

$1,132

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/15

7:00 am-6:25 pm

1 stop23h 25m

Singapore Changi

Mon 9/22

8:40 pm-10:58 am

2 stops26h 18m

$1,209

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 9/10

5:59 pm-6:15 am

1 stop24h 16m

Singapore Changi

Thu 9/25

8:45 am-9:51 pm

1 stop25h 06m

$1,213

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Singapore?

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Singapore is on a Wednesday when prices can be found for as low as $1,184. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,370.

What is the cheapest time of day to depart on your flight to Singapore?

At noon is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Singapore when you can find flight prices for as low as $1,137. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,511 on average. Flights to Singapore from Washington, D.C. Reagan-National Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Singapore flights?

You could potentially save up to 12% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Singapore flight.

When to book flights from Washington, D.C. Reagan-National Airport to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Singapore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Singapore (DCA to SIN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Singapore

Best Price Found	$544
Fastest flight time	23h 25m
Direct flights	None
Airports in Singapore	1 airport

The best one-way flight to Singapore from Washington, D.C. Reagan-National Airport in the past 72 hours is $544. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Singapore found on momondo in the last 72 hours is $899.

The fastest flight from Washington, D.C. Reagan-National Airport to Singapore takes 23h 25m

There are no direct flights from Washington, D.C. Reagan-National Airport to Singapore. Popular non-direct route for this connection is Washington, D.C. Reagan-National Airport - Singapore Changi Airport.

There is 1 airport near Singapore: Singapore Changi (SIN)

Search flight deals

How far is Washington, D.C. Reagan-National to Singapore Changi by plane?
A flight from Washington, D.C. Reagan-National to Singapore Changi will travel around 9654.9 mi. A reasonable flight in good conditions will take 23h 25m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?
As of August 2025, there is 1 operator available to choose from for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The required travel and health documents for your Singapore Changi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore Changi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. Reagan-National Airport to Singapore?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and Singapore, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Washington, D.C. Reagan-National Airport to Singapore

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Singapore with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,040	Free Cancellation	Rating 7.4 8,904 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Singapore?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Singapore. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Singapore with flexible booking policies on momondo?

Flights from Washington, D.C. to Singapore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Singapore?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Singapore from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Singapore right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Singapore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Singapore and let you know when they change.

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Cheap flights from Washington, D.C. Reagan-National Airport to Singapore from $544

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Filter for what you want

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Singapore

Cheap round-trip flights

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Air Canada flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets

Singapore Airlines flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Singapore Airlines deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets

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Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Singapore that are best for you.

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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Singapore?

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Singapore is on a Wednesday when prices can be found for as low as $1,184. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,370.

What is the cheapest time of day to depart on your flight to Singapore?

Can stopping save me money on Washington, D.C. Reagan-National Airport to Singapore flights?

You could potentially save up to 12% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Singapore flight.

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Singapore Changi?

Cathay Pacific, Alaska Airlines, and Air Canada are the most popular carriers operating from Washington, D.C. Reagan-National to Singapore Changi

When to book flights from Washington, D.C. Reagan-National Airport to Singapore

Cheap Washington, D.C. Reagan-National Airport to Singapore (DCA to SIN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Singapore

Best Price Found

Fastest flight time

Direct flights

Airports in Singapore

How far is Washington, D.C. Reagan-National to Singapore Changi by plane?

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

What documentation or ID do you need to fly to Singapore Changi Airport?

What is the most popular airline from Washington, D.C. Reagan-National Airport to Singapore?

Best airlines flying from Washington, D.C. Reagan-National Airport to Singapore

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Singapore with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Singapore?

Can I find flights from Washington, D.C. to Singapore with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Singapore?

I’m not ready to book a flight from Washington, D.C. to Singapore right now. Can momondo alert me if prices change?

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Singapore

Fly your favorite airline to Singapore

Airlines are sorted and displayed according to clicks in the past 7 days on momondo