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

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

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.

How long is the flight from Washington, D.C. to Singapore?

Flight times from Washington, D.C. to Singapore vary, but if you’re flying out of Washington, D.C. and flying into Singapore (one of the most popular routes), then the duration is 23h 45m on average. Another popular route from Washington, D.C. to Singapore is flying from Baltimore to Singapore, which will take roughly 24h 10m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

The number of operators available for flights from Washington, D.C. to Singapore is 9 as of November 2025.

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

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.

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

The necessary travel and health documents for your Singapore trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$447 Cheap Flights from Washington, D.C. to Singapore in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 5:20 pmIAD-SIN

38h 50m2 stops

4:35 pm - 3:30 pmSIN-IAD

35h 55m3 stops

$1,120Multiple Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 8

5:10 pm - 11:55 amIAD-SIN

30h 45m2 stops

10:00 am - 4:09 pmSIN-IAD

42h 09m2 stops

$1,122Cathay Pacific

Find Deal

Tue, Mar 17 - Tue, Mar 24

5:59 pm - 8:00 amDCA-SIN

25h 01m1 stop

10:10 am - 9:52 pmSIN-DCA

24h 42m1 stop

$1,124United Airlines

Find Deal

Tue, Dec 30 - Thu, Jan 15

4:10 pm - 8:00 amIAD-SIN

26h 50m1 stop

10:20 pm - 7:30 amSIN-IAD

22h 10m1 stop

$1,124United Airlines

Find Deal

Thu, Nov 13 - Thu, Nov 20

10:40 am - 9:15 pmIAD-SIN

21h 35m1 stop

3:15 am - 3:55 pmSIN-IAD

25h 40m1 stop

$1,130Qatar Airways

Find Deal

Fri, Feb 20 - Sat, Feb 28

12:50 pm - 5:00 amIAD-SIN

28h 10m1 stop

10:30 pm - 12:07 amSIN-IAD

37h 37m2 stops

$1,138Korean Air

Find Deal

Tue, Mar 24 - Wed, Apr 8

9:00 pm - 3:45 pmIAD-SIN

30h 45m1 stop

3:10 am - 8:40 amSIN-IAD

41h 30m1 stop

$1,140Qatar Airways

Find Deal

Sat, Apr 25 - Thu, Apr 30

8:20 am - 12:10 amDCA-SIN

27h 50m2 stops

10:30 pm - 4:59 pmSIN-DCA

30h 29m2 stops

$1,144Korean Air

Find Deal

Thu, Mar 26 - Mon, Apr 6

1:30 pm - 8:45 amIAD-SIN

30h 15m1 stop

11:40 am - 11:45 amSIN-IAD

37h 05m1 stop

$1,159Turkish Airlines

Find Deal

Mon, Dec 29 - Mon, Jan 12

1:30 pm - 8:45 amIAD-SIN

30h 15m1 stop

10:25 am - 11:45 amSIN-IAD

38h 20m1 stop

$1,166Turkish Airlines

Find Deal

Tue, Dec 30 - Thu, Jan 15

IndiGo flights from Washington, D.C. to Singapore

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

IndiGo

Dec 1

IAD9:15 pmWashington, D.C. Dulles Intl

48h 00m

2 stops

SIN10:15 amSingapore Changi

Dec 19

SIN11:15 amSingapore Changi

45h 05m

2 stops

IAD7:20 pmWashington, D.C. Dulles Intl

$1,125

Find similar

IndiGo

Dec 2

IAD1:30 pmWashington, D.C. Dulles Intl

38h 50m

2 stops

SIN5:20 pmSingapore Changi

Dec 17

SIN11:15 amSingapore Changi

45h 05m

2 stops

IAD7:20 pmWashington, D.C. Dulles Intl

$1,127

Find similar

IndiGo

Dec 6

IAD9:15 pmWashington, D.C. Dulles Intl

48h 00m

2 stops

SIN10:15 amSingapore Changi

Dec 20

SIN11:15 amSingapore Changi

45h 05m

2 stops

IAD7:20 pmWashington, D.C. Dulles Intl

$1,131

Find similar

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

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

Korean Air

Mar 24

IAD12:50 pmWashington, D.C. Dulles Intl

28h 10m

1 stop

SIN5:00 amSingapore Changi

Apr 8

SIN10:30 pmSingapore Changi

37h 37m

2 stops

IAD12:07 amWashington, D.C. Dulles Intl

$1,138

Find similar

Korean Air

Mar 26

DCA8:20 amWashington, D.C. Reagan-National

27h 50m

2 stops

SIN12:10 amSingapore Changi

Apr 6

SIN10:30 pmSingapore Changi

30h 29m

2 stops

DCA4:59 pmWashington, D.C. Reagan-National

$1,144

Find similar

Korean Air

Mar 9

DCA6:05 amWashington, D.C. Reagan-National

34h 55m

2 stops

SIN5:00 amSingapore Changi

Mar 11

SIN1:35 amSingapore Changi

28h 31m

2 stops

DCA6:06 pmWashington, D.C. Reagan-National

$1,244

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

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 12/1

1:30 pm-5:20 pm

2 stops38h 50m

Singapore Changi

Mon 12/8

4:35 pm-3:30 pm

3 stops35h 55m

$1,120

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 3/17

5:10 pm-11:55 am

2 stops30h 45m

Singapore Changi

Tue 3/24

10:00 am-4:09 pm

2 stops42h 09m

$1,122

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 12/30

5:59 pm-8:00 am

1 stop25h 01m

Singapore Changi

Thu 1/15

10:10 am-9:52 pm

1 stop24h 42m

$1,124

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 11/13

4:10 pm-8:00 am

1 stop26h 50m

Singapore Changi

Thu 11/20

10:20 pm-7:30 am

1 stop22h 10m

$1,124

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 2/20

10:40 am-9:15 pm

1 stop21h 35m

Singapore Changi

Sat 2/28

3:15 am-3:55 pm

1 stop25h 40m

$1,130

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 3/24

12:50 pm-5:00 am

1 stop28h 10m

Singapore Changi

Wed 4/8

10:30 pm-12:07 am

2 stops37h 37m

$1,138

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 4/25

9:00 pm-3:45 pm

1 stop30h 45m

Singapore Changi

Thu 4/30

3:10 am-8:40 am

1 stop41h 30m

$1,140

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 3/26

8:20 am-12:10 am

2 stops27h 50m

Singapore Changi

Mon 4/6

10:30 pm-4:59 pm

2 stops30h 29m

$1,144

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 12/29

1:30 pm-8:45 am

1 stop30h 15m

Singapore Changi

Mon 1/12

11:40 am-11:45 am

1 stop37h 05m

$1,159

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 12/30

1:30 pm-8:45 am

1 stop30h 15m

Singapore Changi

Thu 1/15

10:25 am-11:45 am

1 stop38h 20m

$1,166

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

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 $974.

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 Friday when prices can be found for as low as $1,136. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,496.

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 $1,135. 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 $1,510 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 $1,206 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 $970 on momondo.

Cheap Washington, D.C. to Singapore 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

When did momondo last update prices for flights from Washington, D.C. to Singapore?
Prices for flights from Washington, D.C. to Singapore were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Singapore?
The number of operators available for flights from Washington, D.C. to Singapore is 9 as of November 2025.
How old do you have to be to fly from Washington, D.C. to Singapore?
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.
What documentation or ID do you need to fly to Singapore?
The necessary travel and health documents for your Singapore trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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 2,941 reviews	Search Air India flights
Etihad Airways	PriceFrom $833	Free Cancellation	Rating 7.4 1,285 reviews	Search Etihad Airways flights
Turkish Airlines	PriceFrom $839	Free Cancellation	Rating 7.3 4,038 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $944	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $996	Free Cancellation	Rating 7.4 3,660 reviews	Search Qatar Airways flights
JetBlue	PriceFrom $1,043	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
United Airlines	PriceFrom $1,191	Free Cancellation	Rating 7.4 8,998 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 1,000 reviews	Search ANA flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Singapore for you.

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

Yes. All flights to Singapore from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Singapore from Washington, D.C..

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

Price alerts on flights to Singapore from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 12/3

Wed 12/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Singapore

Popular cities in Singapore

Flights to Singaporefrom $528

Washington, D.C. flight routes

Flights from Washington, D.C. Dulles Intl to Miami

Flights from Baltimore/Washington to Orlando

Flights from Washington, D.C. Dulles Intl to Atlanta Hartsfield-Jackson

Flights from Baltimore/Washington to Miami

Flights from Washington, D.C. Dulles Intl to Orlando

Flights from Baltimore/Washington to Atlanta Hartsfield-Jackson

Cheap flights from Washington, D.C. to Singapore from $447

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 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

IndiGo flights from Washington, D.C. to Singapore

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

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

Our best Korean 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

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 Friday when prices can be found for as low as $1,136. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,496.

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?

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

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

What airlines fly to Singapore?

How long is the flight from Washington, D.C. to Singapore?

Cheap Washington, D.C. to Singapore flight deals and tips

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

Direct flights

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

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

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

What documentation or ID do you need to fly 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

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo