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

Flights via Beijing (PEK) offer the lowest average round-trip price of $779.

What airlines fly to Singapore?

Turkish Airlines, United Airlines and Qatar Airways are the top three most popular airlines that fly to Singapore from Washington, D.C. according to our data. Turkish Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 8 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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

Dubai (DXB) has the shortest average layover time for this route: 2h 00m.

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

Istanbul (IST) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

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

IndiGo and Singapore Airlines are the most popular carriers operating from Washington, D.C. to Singapore Changi

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

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 20m.

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 Washington, D.C. (a popular airport in Washington, D.C.) to Singapore (the most popular airport in Singapore), then the flight time is 22h 42m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Singapore, then the average flight time is 23h 15m.

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 September 2025, there are 8 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.

$413 Cheap Flights from Washington, D.C. to Singapore in 2025/26

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One-way

Last minute

Cheap round-trip flights

5:35 am - 11:20 pmBWI-SIN

29h 45m2 stops

2:35 pm - 10:28 amSIN-BWI

31h 53m3 stops

$906Multiple Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

6:58 pm - 7:05 pmDCA-SIN

35h 07m1 stop

9:00 am - 9:59 pmSIN-DCA

25h 59m1 stop

$916Multiple Airlines

Find Deal

Tue, Nov 4 - Thu, Nov 13

1:30 pm - 10:00 amIAD-SIN

31h 30m1 stop

5:25 am - 7:15 pmSIN-IAD

26h 50m1 stop

$1,035Turkish Airlines

Find Deal

Wed, Nov 12 - Tue, Nov 18

10:05 pm - 9:40 amIAD-SIN

23h 35m1 stop

7:25 pm - 4:50 pmSIN-IAD

33h 25m1 stop

$1,036Etihad Airways

Find Deal

Sun, Oct 19 - Sat, Nov 1

10:05 pm - 9:40 amIAD-SIN

23h 35m1 stop

7:25 pm - 4:50 pmSIN-IAD

33h 25m1 stop

$1,039Etihad Airways

Find Deal

Mon, Oct 20 - Sat, Nov 1

7:00 am - 8:15 pmDCA-SIN

25h 15m1 stop

10:20 pm - 3:58 pmSIN-DCA

30h 38m2 stops

$1,041United Airlines

Find Deal

Thu, Oct 30 - Wed, Nov 12

10:10 pm - 5:35 pmIAD-SIN

31h 25m1 stop

5:25 am - 7:15 pmSIN-IAD

26h 50m1 stop

$1,045Turkish Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

7:00 am - 8:15 pmDCA-SIN

25h 15m1 stop

10:20 pm - 9:43 pmSIN-DCA

36h 23m1 stop

$1,045United Airlines

Find Deal

Thu, Oct 30 - Wed, Nov 12

11:00 am - 9:00 pmIAD-SIN

22h 00m1 stop

6:45 pm - 3:40 pmSIN-IAD

32h 55m1 stop

$1,058Qatar Airways

Find Deal

Sun, Sep 28 - Sun, Oct 5

11:00 am - 9:00 pmIAD-SIN

22h 00m1 stop

3:10 am - 3:40 pmSIN-IAD

24h 30m1 stop

$1,069Qatar Airways

Find Deal

Sun, Sep 28 - Fri, Oct 10

Qatar Airways flights from Washington, D.C. to Singapore

Our best Qatar Airways deals on Washington, D.C. to Singapore flight tickets

Qatar Airways

Sep 24

IAD11:00 amWashington, D.C. Dulles Intl

22h 00m

1 stop

SIN9:00 pmSingapore Changi

Oct 2

SIN6:45 pmSingapore Changi

32h 55m

1 stop

IAD3:40 pmWashington, D.C. Dulles Intl

$1,021

Find similar

Qatar Airways

Sep 23

IAD9:00 pmWashington, D.C. Dulles Intl

30h 45m

1 stop

SIN3:45 pmSingapore Changi

Sep 30

SIN3:10 amSingapore Changi

24h 30m

1 stop

IAD3:40 pmWashington, D.C. Dulles Intl

$1,033

Find similar

Qatar Airways

Sep 21

IAD11:00 amWashington, D.C. Dulles Intl

22h 00m

1 stop

SIN9:00 pmSingapore Changi

Oct 5

SIN3:10 amSingapore Changi

24h 30m

1 stop

IAD3:40 pmWashington, D.C. Dulles Intl

$1,047

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

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

Cathay Pacific

Feb 16

DCA2:59 pmWashington, D.C. Reagan-National

33h 06m

2 stops

SIN1:05 pmSingapore Changi

Feb 23

SIN1:25 amSingapore Changi

34h 55m

2 stops

DCA11:20 pmWashington, D.C. Reagan-National

$1,123

Find similar

Cathay Pacific

Oct 14

DCA10:55 amWashington, D.C. Reagan-National

30h 35m

2 stops

SIN5:30 amSingapore Changi

Oct 21

SIN8:05 pmSingapore Changi

38h 10m

2 stops

DCA10:15 pmWashington, D.C. Reagan-National

$1,124

Find similar

Cathay Pacific

Sep 25

IAD6:00 pmWashington, D.C. Dulles Intl

29h 45m

2 stops

SIN11:45 amSingapore Changi

Oct 2

SIN8:00 amSingapore Changi

38h 57m

2 stops

IAD10:57 amWashington, D.C. Dulles Intl

$1,132

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 10/14

5:35 am-11:20 pm

2 stops29h 45m

Singapore Changi

Tue 10/21

2:35 pm-10:28 am

3 stops31h 53m

$906

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/4

6:58 pm-7:05 pm

1 stop35h 07m

Singapore Changi

Thu 11/13

9:00 am-9:59 pm

1 stop25h 59m

$916

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 11/12

1:30 pm-10:00 am

1 stop31h 30m

Singapore Changi

Tue 11/18

5:25 am-7:15 pm

1 stop26h 50m

$1,035

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 10/19

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Sat 11/1

7:25 pm-4:50 pm

1 stop33h 25m

$1,036

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 10/20

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Sat 11/1

7:25 pm-4:50 pm

1 stop33h 25m

$1,039

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 10/30

7:00 am-8:15 pm

1 stop25h 15m

Singapore Changi

Wed 11/12

10:20 pm-3:58 pm

2 stops30h 38m

$1,041

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10/30

10:10 pm-5:35 pm

1 stop31h 25m

Singapore Changi

Thu 11/6

5:25 am-7:15 pm

1 stop26h 50m

$1,045

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 10/30

7:00 am-8:15 pm

1 stop25h 15m

Singapore Changi

Wed 11/12

10:20 pm-9:43 pm

1 stop36h 23m

$1,045

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 9/28

11:00 am-9:00 pm

1 stop22h 00m

Singapore Changi

Sun 10/5

6:45 pm-3:40 pm

1 stop32h 55m

$1,058

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 9/28

11:00 am-9:00 pm

1 stop22h 00m

Singapore Changi

Fri 10/10

3:10 am-3:40 pm

1 stop24h 30m

$1,069

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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

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Singapore?

The month of August is, on average, the cheapest month to fly to Singapore from Washington, D.C., with most prices found around $732. If you aren’t able to travel to Singapore during the month of August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $979.

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

The cheapest day to depart from Washington, D.C. 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. 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. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $1,205 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 $1,002 on momondo.

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

You could potentially save up to 5% 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 September 2025, prices for Washington, D.C. to Singapore flights are approximately 8% cheaper 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

Direct flights	None

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

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 22h 00m.
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 September 2025, there are 8 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 Turkish Airlines, representing 29% of all bookings. The subsequent popular airlines are Qatar Airways at 21%, United Airlines at 18%, and Korean Air at 6%.

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
Air India	PriceFrom $807	Free Cancellation	Rating 5.5 2,932 reviews	Search Air India flights
Turkish Airlines	PriceFrom $816	Free Cancellation	Rating 7.3 3,965 reviews	Search Turkish Airlines flights
Etihad Airways	PriceFrom $833	Free Cancellation	Rating 7.4 1,251 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $944	Free Cancellation	Rating 8.4 1,140 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $996	Free Cancellation	Rating 7.4 3,622 reviews	Search Qatar Airways flights
JetBlue	PriceFrom $1,024	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
United Airlines	PriceFrom $1,191	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,196	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines 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 $413

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 2/1. 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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Qatar Airways flights from Washington, D.C. to Singapore

Our best Qatar Airways deals on Washington, D.C. to Singapore flight tickets

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

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

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

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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

What is the cheapest month to fly to Singapore?

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

The cheapest day to depart from Washington, D.C. 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?

How far in advance should I book a flight to Singapore?

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

You could potentially save up to 5% 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 September 2025, prices for Washington, D.C. to Singapore flights are approximately 8% cheaper when compared to flights at the same time last year.

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

IndiGo and Singapore Airlines are the most popular carriers operating 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?

Istanbul (IST) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Beijing (PEK) offer the lowest average round-trip price of $779.

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

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 20m.

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

Dubai (DXB) has the shortest average layover time for this route: 2h 00m.

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

Direct flights

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

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

How many operators does momondo search 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?

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

What is the most popular airline 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?

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