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 57m 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 37m.

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

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

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 33% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 6 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

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 $1,103.

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

Istanbul (IST) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

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.

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

Taipei City (TPE) has the shortest average layover time for this route: 1h 30m.

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 June 2026, there are 6 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.

$473 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 $1,638 to $1,290. The lowest price recently found on this route was $1,042.

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Find the cheapest flights from Washington, D.C. to Singapore

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

5:55 pm - 7:30 pm

SIN

IAD

37h 35m

1 stop

$1,042Multiple Airlines

Mon, Aug 31 - Mon, Sep 7

7:46 am - 5:45 pm

IAD

SIN

44h 59m

1 stop

9:00 am - 5:51 am

SIN

IAD

33h 51m

1 stop

$1,044Singapore Airlines

Tue, Nov 3 - Sat, Nov 14

3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

9:00 pm - 9:45 am

SIN

IAD

24h 45m

1 stop

$1,049Etihad Airways

Mon, Sep 7 - Mon, Sep 14

3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

9:00 pm - 9:45 am

SIN

IAD

24h 45m

1 stop

$1,050Etihad Airways

Wed, Sep 9 - Wed, Sep 23

3:10 pm - 9:40 am

IAD

SIN

30h 30m

1 stop

9:00 pm - 9:45 am

SIN

IAD

24h 45m

1 stop

$1,051Etihad Airways

Wed, Sep 9 - Wed, Sep 23

9:45 pm - 8:45 am

IAD

SIN

23h 00m

1 stop

11:05 pm - 11:35 am

SIN

IAD

24h 30m

1 stop

$1,079Turkish Airlines

Wed, Oct 7 - Wed, Oct 14

9:40 am - 5:15 am

DCA

SIN

31h 35m

2 stops

7:00 am - 10:20 am

SIN

DCA

39h 20m

2 stops

$1,104Air Canada

Thu, Sep 10 - Thu, Sep 17

12:40 pm - 5:15 am

DCA

SIN

52h 35m

2 stops

8:10 am - 10:20 am

SIN

DCA

38h 10m

2 stops

$1,118Air Canada

Wed, Sep 9 - Wed, Sep 23

1:07 pm - 8:50 am

BWI

SIN

31h 43m

2 stops

3:15 am - 11:31 pm

SIN

BWI

32h 16m

2 stops

$1,234Qatar Airways

Tue, Oct 20 - Tue, Oct 27

11:54 am - 3:45 pm

BWI

SIN

39h 51m

2 stops

7:40 pm - 9:30 pm

SIN

BWI

37h 50m

2 stops

$1,243Qatar Airways

Tue, Sep 1 - Tue, Sep 8

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

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

Singapore Airlines

Nov 3

IAD7:46 amWashington, D.C. Dulles Intl

44h 59m

1 stop

SIN5:45 pmSingapore Changi

Nov 14

SIN9:00 amSingapore Changi

33h 51m

1 stop

IAD5:51 amWashington, D.C. Dulles Intl

$1,044

Singapore Airlines

Oct 20

BWI5:44 pmBaltimore/Washington

25h 56m

1 stop

SIN7:40 amSingapore Changi

Oct 28

SIN8:45 pmSingapore Changi

32h 51m

1 stop

BWI5:36 pmBaltimore/Washington

$1,466

Singapore Airlines

Jun 12

BWI7:21 pmBaltimore/Washington

41h 34m

2 stops

SIN12:55 amSingapore Changi

Jun 19

SIN8:45 pmSingapore Changi

32h 58m

1 stop

BWI5:43 pmBaltimore/Washington

$4,191

Finnair flights from Washington, D.C. to Singapore

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

Finnair

Sep 1

BWI6:25 pmBaltimore/Washington

36h 05m

2 stops

SIN6:30 pmSingapore Changi

Sep 12

SIN9:35 pmSingapore Changi

37h 24m

2 stops

BWI10:59 pmBaltimore/Washington

$1,322

Finnair

Oct 20

DCA7:06 pmWashington, D.C. Reagan-National

35h 24m

2 stops

SIN6:30 pmSingapore Changi

Oct 28

SIN10:05 pmSingapore Changi

36h 52m

2 stops

DCA10:57 pmWashington, D.C. Reagan-National

$1,332

Finnair

Aug 23

BWI6:39 pmBaltimore/Washington

35h 51m

2 stops

SIN6:30 pmSingapore Changi

Sep 3

SIN9:35 pmSingapore Changi

38h 08m

2 stops

BWI11:43 pmBaltimore/Washington

$1,363

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/31

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Mon 9/7

5:55 pm-7:30 pm

1 stop37h 35m

$1,042

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 11/3

7:46 am-5:45 pm

1 stop44h 59m

Singapore Changi

Sat 11/14

9:00 am-5:51 am

1 stop33h 51m

$1,044

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/7

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Mon 9/14

9:00 pm-9:45 am

1 stop24h 45m

$1,049

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/9

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Wed 9/23

9:00 pm-9:45 am

1 stop24h 45m

$1,050

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/9

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Wed 9/23

9:00 pm-9:45 am

1 stop24h 45m

$1,051

Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 10/7

9:45 pm-8:45 am

1 stop23h 00m

Singapore Changi

Wed 10/14

11:05 pm-11:35 am

1 stop24h 30m

$1,079

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9/10

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Thu 9/17

7:00 am-10:20 am

2 stops39h 20m

$1,104

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 9/9

12:40 pm-5:15 am

2 stops52h 35m

Singapore Changi

Wed 9/23

8:10 am-10:20 am

2 stops38h 10m

$1,118

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 10/20

1:07 pm-8:50 am

2 stops31h 43m

Singapore Changi

Tue 10/27

3:15 am-11:31 pm

2 stops32h 16m

$1,234

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 9/1

11:54 am-3:45 pm

2 stops39h 51m

Singapore Changi

Tue 9/8

7:40 pm-9:30 pm

2 stops37h 50m

$1,243

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

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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 $1,295 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 10% 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 June 2026, prices for Washington, D.C. to Singapore flights are approximately 12% 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	22h 10m
Direct flights	None

The fastest flight from Washington, D.C. to Singapore takes 22h 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

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 22h 10m.
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 June 2026, there are 6 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 22% of all bookings. The subsequent popular airlines are JetBlue at 19%, Turkish Airlines at 18%, and Qatar Airways at 15%.

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
Etihad Airways	PriceFrom $828	Free Cancellation	Rating 7.3 1,444 reviews	Search Etihad Airways flights
Turkish Airlines	PriceFrom $939	Free Cancellation	Rating 7.4 4,408 reviews	Search Turkish Airlines flights
Qatar Airways	PriceFrom $1,041	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
United Airlines	PriceFrom $1,124	Free Cancellation	Rating 7.4 9,774 reviews	Search United Airlines flights
JetBlue	PriceFrom $1,245	Free Cancellation	Rating 7.1 2,984 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 $473

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 8/23. 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

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

Fly your favorite airline to Singapore

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

Cabin classes currently available on flights to Singapore

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

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