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

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

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

Istanbul (IST) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

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 23h 44m on average. If you fly from Washington, D.C. (another popular airport in Washington, D.C.) to Singapore, then the average flight time is 24h 10m.

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

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

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 55m.

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 34% 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 January 2026, 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.

$264 Cheap Flights from Washington, D.C. to Singapore in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,112 to $1,170. The lowest price recently found on this route was $878.

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9:15 pm - 5:20 pm

IAD

SIN

31h 05m

2 stops

7:40 pm - 7:20 pm

SIN

IAD

36h 40m

2 stops

$878IndiGo

lun., ene. 26 - lun., feb. 9

6:10 pm - 3:30 pm

IAD

SIN

32h 20m

1 stop

2:30 am - 2:45 pm

SIN

IAD

25h 15m

1 stop

$888SAUDIA

sáb., feb. 7 - vie., feb. 20

9:15 pm - 5:20 pm

IAD

SIN

31h 05m

2 stops

11:15 am - 7:20 pm

SIN

IAD

45h 05m

2 stops

$894IndiGo

mié., feb. 11 - mié., feb. 18

2:35 pm - 9:35 am

IAD

SIN

30h 00m

1 stop

7:25 pm - 9:05 am

SIN

IAD

26h 40m

1 stop

$902Etihad Airways

lun., ene. 26 - lun., feb. 9

2:35 pm - 9:35 am

IAD

SIN

30h 00m

1 stop

7:25 pm - 9:05 am

SIN

IAD

26h 40m

1 stop

$933Etihad Airways

dom., feb. 15 - lun., feb. 23

1:20 pm - 5:55 pm

IAD

SIN

40h 35m

1 stop

10:25 am - 11:35 am

SIN

IAD

37h 10m

1 stop

$974Turkish Airlines

dom., abr. 12 - mar., may. 5

11:05 am - 7:00 am

DCA

SIN

30h 55m

2 stops

7:00 am - 9:55 pm

SIN

DCA

26h 55m

2 stops

$1,011Air Canada

mié., feb. 4 - mar., may. 5

8:40 pm - 7:00 am

DCA

SIN

45h 20m

2 stops

8:50 am - 10:21 am

SIN

DCA

38h 31m

2 stops

$1,016Air Canada

lun., feb. 2 - mar., feb. 17

6:00 am - 12:50 am

BWI

SIN

29h 50m

2 stops

2:20 am - 11:10 pm

SIN

BWI

33h 50m

2 stops

$1,129American Airlines

mié., ene. 21 - mar., ene. 27

6:50 am - 12:50 am

BWI

SIN

29h 00m

2 stops

1:55 am - 5:56 pm

SIN

BWI

28h 01m

2 stops

$1,130American Airlines

mié., feb. 18 - mar., sep. 15

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

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

Cathay Pacific

Mar 10

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

26h 56m

2 stops

SIN11:55 amSingapore Changi

Mar 23

SIN1:25 amSingapore Changi

33h 34m

2 stops

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

$1,020

Cathay Pacific

Jan 21

DCA6:55 pmWashington, D.C. Reagan-National

29h 10m

2 stops

SIN1:05 pmSingapore Changi

Jan 28

SIN1:25 amSingapore Changi

34h 34m

2 stops

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

$1,051

Cathay Pacific

Jan 18

DCA9:33 amWashington, D.C. Reagan-National

37h 22m

2 stops

SIN11:55 amSingapore Changi

Jan 27

SIN1:25 amSingapore Changi

34h 34m

2 stops

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

$1,119

EVA Air flights from Washington, D.C. to Singapore

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

EVA Air

Feb 15

BWI6:46 pmBaltimore/Washington

30h 44m

2 stops

SIN2:30 pmSingapore Changi

Mar 2

SIN3:45 pmSingapore Changi

39h 01m

2 stops

BWI5:46 pmBaltimore/Washington

$1,219

EVA Air

Apr 24

BWI7:16 pmBaltimore/Washington

28h 39m

2 stops

SIN11:55 amSingapore Changi

May 4

SIN3:20 pmSingapore Changi

26h 24m

2 stops

BWI5:44 amBaltimore/Washington

$1,246

EVA Air

Jan 17

DCA5:01 pmWashington, D.C. Reagan-National

30h 04m

2 stops

SIN12:05 pmSingapore Changi

Jan 19

SIN3:45 pmSingapore Changi

39h 11m

2 stops

DCA5:56 pmWashington, D.C. Reagan-National

$1,284

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

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 1/26

9:15 pm-5:20 pm

2 stops31h 05m

Singapore Changi

lun. 2/9

7:40 pm-7:20 pm

2 stops36h 40m

$878

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

sáb. 2/7

6:10 pm-3:30 pm

1 stop32h 20m

Singapore Changi

vie. 2/20

2:30 am-2:45 pm

1 stop25h 15m

$888

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mié. 2/11

9:15 pm-5:20 pm

2 stops31h 05m

Singapore Changi

mié. 2/18

11:15 am-7:20 pm

2 stops45h 05m

$894

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 1/26

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

lun. 2/9

7:25 pm-9:05 am

1 stop26h 40m

$902

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

dom. 2/15

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

lun. 2/23

7:25 pm-9:05 am

1 stop26h 40m

$933

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

dom. 4/12

1:20 pm-5:55 pm

1 stop40h 35m

Singapore Changi

mar. 5/5

10:25 am-11:35 am

1 stop37h 10m

$974

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

mié. 2/4

11:05 am-7:00 am

2 stops30h 55m

Singapore Changi

mar. 5/5

7:00 am-9:55 pm

2 stops26h 55m

$1,011

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

lun. 2/2

8:40 pm-7:00 am

2 stops45h 20m

Singapore Changi

mar. 2/17

8:50 am-10:21 am

2 stops38h 31m

$1,016

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

mié. 1/21

6:00 am-12:50 am

2 stops29h 50m

Singapore Changi

mar. 1/27

2:20 am-11:10 pm

2 stops33h 50m

$1,129

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

mié. 2/18

6:50 am-12:50 am

2 stops29h 00m

Singapore Changi

mar. 9/15

1:55 am-5:56 pm

2 stops28h 01m

$1,130

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. 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 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 August is, on average, the cheapest month to fly to Singapore from Washington, D.C., with most prices found around $723. 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 $930.

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 $1,259 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 $1,099 on momondo.

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

As of January 2026, prices for Washington, D.C. to Singapore flights are approximately 2% 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	21h 50m
Direct flights	None

The fastest flight from Washington, D.C. to Singapore takes 21h 50m

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 50m.
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 January 2026, 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 20% of all bookings. The subsequent popular airlines are United Airlines at 20%, JetBlue at 18%, and Qatar Airways at 17%.

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 2,975 reviews	Search Air India flights
Etihad Airways	PriceFrom $833	Free Cancellation	Rating 7.3 1,370 reviews	Search Etihad Airways flights
Turkish Airlines	PriceFrom $862	Free Cancellation	Rating 7.3 4,169 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $944	Free Cancellation	Rating 8.4 1,187 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $1,031	Free Cancellation	Rating 7.4 3,715 reviews	Search Qatar Airways flights
JetBlue	PriceFrom $1,066	Free Cancellation	Rating 7.2 2,887 reviews	Search JetBlue flights
United Airlines	PriceFrom $1,174	Free Cancellation	Rating 7.4 9,163 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,196	Free Cancellation	Rating 7.2 11,129 reviews	Search American Airlines flights
ANA	PriceFrom $1,499	Free Cancellation	Rating 8.4 1,072 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 $264

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 2/28. 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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Cathay Pacific flights from Washington, D.C. to Singapore

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

EVA Air flights from Washington, D.C. to Singapore

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

momondo Fare Finder

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

See travel insights to Singapore from

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 to Singapore?

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

As of January 2026, prices for Washington, D.C. to Singapore flights are approximately 2% 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, Philippine Airlines, and Air Canada 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: 36% 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?

San Francisco (SFO) has the shortest average layover time for this route: 1h 55m.

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