Which layover airport has the shortest connection time from Washington, D.C. to Singapore?

San Francisco (SFO) has the shortest average layover time for this route: 1h 39m.

How long does it take to fly to Singapore?

The flight from Washington, D.C. to Singapore depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Baltimore (a popular airport in Washington, D.C.) to Singapore (the most popular airport in Singapore), then the flight time is 24h 30m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Singapore, then the average flight time is 25h 18m.

Which airport is the most popular layover for flights between Washington, D.C. and Singapore?

Istanbul (IST) was the most common stop: 30% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Singapore?

United Airlines, Turkish Airlines and Qatar Airways are the top three most popular airlines that fly to Singapore from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 7 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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

Etihad Airways, Qatar Airways, and Japan Airlines are the most popular carriers operating from Washington, D.C. to Singapore Changi

Which layover airport offers the lowest fares from Washington, D.C. to Singapore?

Flights via Istanbul (IST) offer the lowest average round-trip price of $1,066.

Which layover airport has the shortest travel time from Washington, D.C. to Singapore?

Flights connecting via New Delhi (DEL) have the shortest average one-way travel time: 21h 45m.

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

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

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

As of May 2026, there are 7 operators available to choose from for flights from Washington, D.C. to Singapore Changi Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Singapore Changi Airport.

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

The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$532 Cheap Flights from Washington, D.C. to Singapore in 2026

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3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

9:00 pm - 9:45 am

SIN

IAD

24h 45m

1 stop

$999Etihad Airways

Tue, Jun 2 - Tue, Jun 16

3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

9:00 pm - 9:45 am

SIN

IAD

24h 45m

1 stop

$1,013Etihad Airways

Thu, Aug 27 - Mon, Sep 28

9:45 pm - 5:55 pm

IAD

SIN

32h 10m

1 stop

10:25 am - 7:50 pm

SIN

IAD

45h 25m

1 stop

$1,045Turkish Airlines

Sun, Aug 23 - Thu, Sep 3

9:45 pm - 5:55 pm

IAD

SIN

32h 10m

1 stop

10:25 am - 11:35 am

SIN

IAD

37h 10m

1 stop

$1,046Turkish Airlines

Thu, Sep 10 - Thu, Sep 24

8:00 am - 5:45 pm

DCA

SIN

44h 45m

1 stop

9:00 am - 9:59 pm

SIN

DCA

25h 59m

1 stop

$1,135Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

4:20 pm - 5:15 am

DCA

SIN

48h 55m

2 stops

7:00 am - 10:20 am

SIN

DCA

39h 20m

2 stops

$1,217Air Canada

Mon, Sep 28 - Thu, Oct 8

9:40 am - 5:15 am

DCA

SIN

31h 35m

2 stops

7:00 am - 9:50 pm

SIN

DCA

26h 50m

2 stops

$1,242Air Canada

Sun, Oct 18 - Thu, Oct 22

11:25 am - 3:45 pm

BWI

SIN

40h 20m

2 stops

3:15 am - 11:31 pm

SIN

BWI

32h 16m

2 stops

$1,268Qatar Airways

Tue, Sep 29 - Tue, Oct 13

6:16 pm - 5:35 pm

BWI

SIN

35h 19m

1 stop

9:00 am - 6:21 am

SIN

BWI

34h 21m

1 stop

$1,271Multiple Airlines

Thu, Oct 1 - Tue, Nov 3

11:25 am - 3:45 pm

BWI

SIN

40h 20m

2 stops

3:15 am - 11:31 pm

SIN

BWI

32h 16m

2 stops

$1,308Qatar Airways

Sat, Sep 26 - Tue, Oct 13

American Airlines flights from Washington, D.C. to Singapore

Our best American Airlines deals on Washington, D.C. to Singapore flight tickets

American Airlines

Aug 5

DCA3:41 pmWashington, D.C. Reagan-National

29h 09m

2 stops

SIN8:50 amSingapore Changi

Aug 16

SIN3:15 amSingapore Changi

29h 44m

2 stops

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

$1,450

American Airlines

Aug 5

DCA3:41 pmWashington, D.C. Reagan-National

29h 09m

2 stops

SIN8:50 amSingapore Changi

Aug 21

SIN3:15 amSingapore Changi

30h 45m

2 stops

DCA10:00 pmWashington, D.C. Reagan-National

$1,490

American Airlines

Aug 5

DCA3:41 pmWashington, D.C. Reagan-National

29h 09m

2 stops

SIN8:50 amSingapore Changi

Aug 17

SIN3:15 amSingapore Changi

29h 44m

2 stops

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

$1,523

Cathay Pacific flights from Washington, D.C. to Singapore

Our best Cathay Pacific deals on Washington, D.C. to Singapore flight tickets

Cathay Pacific

Oct 7

DCA11:30 amWashington, D.C. Reagan-National

30h 00m

2 stops

SIN5:30 amSingapore Changi

Oct 13

SIN1:45 amSingapore Changi

33h 14m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$1,352

Cathay Pacific

Aug 10

DCA6:57 pmWashington, D.C. Reagan-National

28h 48m

2 stops

SIN11:45 amSingapore Changi

Aug 24

SIN9:45 amSingapore Changi

26h 13m

2 stops

DCA11:58 pmWashington, D.C. Reagan-National

$1,387

Cathay Pacific

Oct 9

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

28h 46m

2 stops

SIN11:45 amSingapore Changi

Oct 15

SIN1:45 amSingapore Changi

33h 14m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$1,448

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 6/2

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Tue 6/16

9:00 pm-9:45 am

1 stop24h 45m

$999

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 8/27

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Mon 9/28

9:00 pm-9:45 am

1 stop24h 45m

$1,013

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8/23

9:45 pm-5:55 pm

1 stop32h 10m

Singapore Changi

Thu 9/3

10:25 am-7:50 pm

1 stop45h 25m

$1,045

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 9/10

9:45 pm-5:55 pm

1 stop32h 10m

Singapore Changi

Thu 9/24

10:25 am-11:35 am

1 stop37h 10m

$1,046

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/3

8:00 am-5:45 pm

1 stop44h 45m

Singapore Changi

Tue 11/17

9:00 am-9:59 pm

1 stop25h 59m

$1,135

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/28

4:20 pm-5:15 am

2 stops48h 55m

Singapore Changi

Thu 10/8

7:00 am-10:20 am

2 stops39h 20m

$1,217

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 10/18

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Thu 10/22

7:00 am-9:50 pm

2 stops26h 50m

$1,242

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 9/29

11:25 am-3:45 pm

2 stops40h 20m

Singapore Changi

Tue 10/13

3:15 am-11:31 pm

2 stops32h 16m

$1,268

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Thu 10/1

6:16 pm-5:35 pm

1 stop35h 19m

Singapore Changi

Tue 11/3

9:00 am-6:21 am

1 stop34h 21m

$1,271

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Sat 9/26

11:25 am-3:45 pm

2 stops40h 20m

Singapore Changi

Tue 10/13

3:15 am-11:31 pm

2 stops32h 16m

$1,308

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How to get the cheapest flight ticket from Washington, D.C. 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

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Other information

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

What is the cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Washington, D.C., with most prices found around $343. If you aren’t able to travel to Singapore during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $674.

How far in advance should I book a flight from Washington, D.C. to Singapore?

You are more likely to see cheaper flights to Singapore from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,282 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Washington, D.C. for as low as $961 on momondo.

Can stopping save me money on Washington, D.C. to Singapore flights?

You could potentially save up to 4% on your flight if you consider stops on a Washington, D.C. to Singapore flight.

How have Washington, D.C. to Singapore flight prices changed over time?

As of May 2026, prices for Washington, D.C. to Singapore flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Singapore (WAS to SIN) flight deals and tips

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

Fastest flight time	24h 05m
Direct flights	None

The fastest flight from Washington, D.C. to Singapore takes 24h 05m

There are no direct flights from Washington, D.C. to Singapore. There are no popular flight routes from Washington, D.C. to Singapore.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Singapore

How far is Washington, D.C. to Singapore Changi by plane?
The straight-line distance from Washington, D.C. to Singapore Changi is 9651.2 mi. A reasonable flight in good conditions will take 24h 05m.
When did momondo last update prices for flights from Washington, D.C. to Singapore Changi Airport?
Prices for flights from Washington, D.C. to Singapore Changi Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Singapore Changi Airport?
As of May 2026, there are 7 operators available to choose from for flights from Washington, D.C. to Singapore Changi Airport.
How old do you have to be to fly from Washington, D.C. to Singapore Changi Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to Singapore?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Singapore is United Airlines, representing 24% of all bookings. The subsequent popular airlines are JetBlue at 20%, Turkish Airlines at 17%, and Qatar Airways at 16%.

Best airlines flying from Washington, D.C. to Singapore

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

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $743	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Air India	PriceFrom $807	Free Cancellation	Rating 5.5 2,957 reviews	Search Air India flights
Etihad Airways	PriceFrom $828	Free Cancellation	Rating 7.3 1,437 reviews	Search Etihad Airways flights
Turkish Airlines	PriceFrom $917	Free Cancellation	Rating 7.4 4,362 reviews	Search Turkish Airlines flights
Qatar Airways	PriceFrom $1,041	Free Cancellation	Rating 7.4 3,728 reviews	Search Qatar Airways flights
United Airlines	PriceFrom $1,124	Free Cancellation	Rating 7.4 9,705 reviews	Search United Airlines flights
JetBlue	PriceFrom $1,245	Free Cancellation	Rating 7.1 2,972 reviews	Search JetBlue flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Singapore. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to Singapore on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Washington, D.C. to Singapore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Washington, D.C. to Singapore flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Washington, D.C. to Singapore from $532

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Singapore departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Washington, D.C. to Singapore

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How to get the cheapest flight ticket from Washington, D.C. to Singapore

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

What is the cheapest month to fly to Singapore?

How far in advance should I book a flight from Washington, D.C. to Singapore?

Can stopping save me money on Washington, D.C. to Singapore flights?

How have Washington, D.C. to Singapore flight prices changed over time?

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

What airlines fly to Singapore?

Which airport is the most popular layover for flights between Washington, D.C. and Singapore?

Which layover airport offers the lowest fares from Washington, D.C. to Singapore?

Which layover airport has the shortest travel time from Washington, D.C. to Singapore?

Which layover airport has the shortest connection time from Washington, D.C. to Singapore?

How long does it take to fly to Singapore?

When to book flights from Washington, D.C. to Singapore

Cheap Washington, D.C. to Singapore (WAS to SIN) flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Singapore

Best airlines flying from Washington, D.C. to Singapore

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

Why use momondo?

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

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List of cabin classes available on flights landing in Singapore. Availability may vary depending on flight origin and airline.

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