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

Istanbul (IST) was the most common stop: 37% 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, Singapore Airlines, 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 Beijing (PEK) offer the lowest average round-trip price of $779.

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 23h 45m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Singapore, then the average flight time is 24h 45m.

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 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 34m.

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 9 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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 November 2025, there are 9 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.

$263 Cheap Flights from Washington, D.C. to Singapore in 2025/26

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6:46 pm - 5:45 pmBWI-SIN

33h 59m1 stop

8:45 pm - 8:53 pmSIN-BWI

36h 08m1 stop

$1,007Singapore Airlines

Find Deal

Wed, Mar 4 - Tue, Mar 24

6:34 pm - 8:00 amBWI-SIN

24h 26m1 stop

10:10 am - 10:25 pmSIN-BWI

25h 15m2 stops

$1,106United Airlines

Find Deal

Mon, Jan 19 - Mon, Jan 26

8:00 am - 8:00 amBWI-SIN

35h 00m2 stops

10:10 am - 11:25 pmSIN-BWI

26h 15m2 stops

$1,111United Airlines

Find Deal

Tue, Feb 17 - Tue, Feb 24

10:05 am - 6:55 amBWI-SIN

31h 50m2 stops

10:10 am - 10:25 pmSIN-BWI

25h 15m2 stops

$1,115United Airlines

Find Deal

Mon, Jan 19 - Thu, Jan 29

6:34 pm - 8:15 pmBWI-SIN

36h 41m1 stop

10:20 pm - 5:26 pmSIN-BWI

32h 06m1 stop

$1,117United Airlines

Find Deal

Sun, Jan 18 - Thu, Jan 29

9:05 pm - 2:55 pmIAD-SIN

29h 50m1 stop

3:15 am - 3:40 pmSIN-IAD

24h 25m1 stop

$1,163Qatar Airways

Find Deal

Wed, Mar 25 - Wed, Apr 1

11:40 am - 9:15 pmIAD-SIN

21h 35m1 stop

3:15 am - 4:55 pmSIN-IAD

25h 40m1 stop

$1,168Qatar Airways

Find Deal

Sun, Mar 8 - Fri, Mar 13

10:15 pm - 8:45 amIAD-SIN

22h 30m1 stop

10:20 am - 11:35 amSIN-IAD

37h 15m1 stop

$1,176Turkish Airlines

Find Deal

Thu, Mar 26 - Sun, Apr 5

6:59 am - 12:10 amDCA-SIN

28h 11m2 stops

10:30 pm - 1:53 pmSIN-DCA

28h 23m2 stops

$1,193Korean Air

Find Deal

Fri, Jan 23 - Sun, Jan 25

6:00 am - 7:00 amDCA-SIN

36h 00m2 stops

6:35 am - 10:35 pmSIN-DCA

29h 00m3 stops

$1,212Air Canada

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Fri, Jan 16 - Thu, Jan 29

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

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

Singapore Airlines

Mar 4

BWI6:46 pmBaltimore/Washington

33h 59m

1 stop

SIN5:45 pmSingapore Changi

Mar 24

SIN8:45 pmSingapore Changi

36h 08m

1 stop

BWI8:53 pmBaltimore/Washington

$1,007

Find similar

Singapore Airlines

Feb 17

BWI6:00 amBaltimore/Washington

36h 55m

1 stop

SIN7:55 amSingapore Changi

Feb 24

SIN9:20 amSingapore Changi

44h 33m

2 stops

BWI4:53 pmBaltimore/Washington

$1,180

Find similar

Singapore Airlines

Feb 1

BWI8:00 amBaltimore/Washington

32h 30m

1 stop

SIN5:30 amSingapore Changi

Feb 7

SIN9:00 amSingapore Changi

22h 14m

1 stop

BWI6:14 pmBaltimore/Washington

$1,226

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

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

United Airlines

Jan 19

BWI6:34 pmBaltimore/Washington

24h 26m

1 stop

SIN8:00 amSingapore Changi

Jan 26

SIN10:10 amSingapore Changi

25h 15m

2 stops

BWI10:25 pmBaltimore/Washington

$1,106

Find similar

United Airlines

Feb 17

BWI8:00 amBaltimore/Washington

35h 00m

2 stops

SIN8:00 amSingapore Changi

Feb 24

SIN10:10 amSingapore Changi

26h 15m

2 stops

BWI11:25 pmBaltimore/Washington

$1,111

Find similar

United Airlines

Jan 19

BWI10:05 amBaltimore/Washington

31h 50m

2 stops

SIN6:55 amSingapore Changi

Jan 29

SIN10:10 amSingapore Changi

25h 15m

2 stops

BWI10:25 pmBaltimore/Washington

$1,115

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momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 3/4

6:46 pm-5:45 pm

1 stop33h 59m

Singapore Changi

Tue 3/24

8:45 pm-8:53 pm

1 stop36h 08m

$1,007

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 1/19

6:34 pm-8:00 am

1 stop24h 26m

Singapore Changi

Mon 1/26

10:10 am-10:25 pm

2 stops25h 15m

$1,106

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 2/17

8:00 am-8:00 am

2 stops35h 00m

Singapore Changi

Tue 2/24

10:10 am-11:25 pm

2 stops26h 15m

$1,111

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 1/19

10:05 am-6:55 am

2 stops31h 50m

Singapore Changi

Thu 1/29

10:10 am-10:25 pm

2 stops25h 15m

$1,115

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Sun 1/18

6:34 pm-8:15 pm

1 stop36h 41m

Singapore Changi

Thu 1/29

10:20 pm-5:26 pm

1 stop32h 06m

$1,117

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 3/25

9:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

Wed 4/1

3:15 am-3:40 pm

1 stop24h 25m

$1,163

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 3/8

11:40 am-9:15 pm

1 stop21h 35m

Singapore Changi

Fri 3/13

3:15 am-4:55 pm

1 stop25h 40m

$1,168

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 3/26

10:15 pm-8:45 am

1 stop22h 30m

Singapore Changi

Sun 4/5

10:20 am-11:35 am

1 stop37h 15m

$1,176

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 1/23

6:59 am-12:10 am

2 stops28h 11m

Singapore Changi

Sun 1/25

10:30 pm-1:53 pm

2 stops28h 23m

$1,193

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 1/16

6:00 am-7:00 am

2 stops36h 00m

Singapore Changi

Thu 1/29

6:35 am-10:35 pm

3 stops29h 00m

$1,212

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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 $945.

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 $1,211 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 $1,136 on momondo.

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

As of November 2025, prices for Washington, D.C. to Singapore flights are approximately 7% 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

Fastest flight time	24h 10m
Direct flights	None

The fastest flight from Washington, D.C. to Singapore takes 24h 10m

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 21h 35m.
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 November 2025, there are 9 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 22% of all bookings. The subsequent popular airlines are Qatar Airways at 19%, United Airlines at 19%, and JetBlue 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
Air India	PriceFrom $807	Free Cancellation	Rating 5.5 2,947 reviews	Search Air India flights
Etihad Airways	PriceFrom $833	Free Cancellation	Rating 7.4 1,312 reviews	Search Etihad Airways flights
Turkish Airlines	PriceFrom $839	Free Cancellation	Rating 7.3 4,059 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $944	Free Cancellation	Rating 8.4 1,170 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $996	Free Cancellation	Rating 7.4 3,675 reviews	Search Qatar Airways flights
JetBlue	PriceFrom $1,043	Free Cancellation	Rating 7.2 2,905 reviews	Search JetBlue flights
United Airlines	PriceFrom $1,191	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,196	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
ANA	PriceFrom $1,499	Free Cancellation	Rating 8.4 1,010 reviews	Search ANA 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 $263

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 2/27. 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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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?

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

As of November 2025, prices for Washington, D.C. to Singapore flights are approximately 7% 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, Singapore Airlines, and Japan 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: 37% 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 34m.

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

Fastest flight time

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