What are the cheapest airlines to fly from District of Columbia to Singapore one-way?

One-way options have recently been found by users for as low as $423 on Air India. Other airlines that offer cheap prices include SAUDIA from $497 and Turkish Airlines from $510 one-way.

How far in advance should I book a flight from District of Columbia to Singapore?

Users have found that booking a flight from District of Columbia to Singapore at least 61 days early can save you up to 6% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from District of Columbia to Singapore for as little as $957 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $957 for flights departing within the next 3 days.

What is the cheapest month to fly from District of Columbia to Singapore?

Our data shows that November tends to be the cheapest month to fly to Singapore from District of Columbia. Users have commonly found prices around $1,283 for the month, but tickets can be as low as $816. Due to multiple factors, prepare for potentially higher prices in December.

How can I find direct flights from District of Columbia to Singapore?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Singapore.

Can I find deals for business class flights from District of Columbia to Singapore?

Yes. Cheapflights offers flight deals from District of Columbia to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,223+ Flights from District of Columbia to Singapore

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Cheap flight deals from District of Columbia to Singapore

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,003 (Gurufare)
One-way from	$423 (oojo)
Popular in	December
Cheapest in	November
Average price	$1,052

Provider with most accurate pricing for Washington, D.C. (WAS)-Singapore Changi flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Singapore Changi flights.

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From District of Columbia to Singapore

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One-way flight from District of Columbia to Singapore

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($28 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find flight deals from District of Columbia to Singapore

Cheapest flights from District of Columbia to Singapore
Explore the most affordable flight options available from District of Columbia to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Tue 4/2211:00 pmIAD - SIN

1 stop34h 55mMultiple Airlines

Wed 4/303:45 amSIN - IAD

1 stop24h 00mMultiple Airlines

Deal found 4/16

$1,003

Sat 8/99:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Sun 8/2410:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Deal found 4/17

$1,028

Wed 5/2110:19 pmIAD - SIN

2 stops44h 46mAir Canada

Sun 6/89:10 amSIN - IAD

2 stops36h 31mAir Canada

Deal found 4/17

$1,037

Mon 4/2811:54 amDCA - SIN

2 stops29h 36mCathay Pacific

Sun 5/111:50 amSIN - DCA

2 stops32h 25mCathay Pacific

Deal found 4/17

$1,052

Mon 4/219:00 pmIAD - SIN

1 stop36h 00mJetBlue

Tue 5/66:45 pmSIN - IAD

1 stop25h 55mJetBlue

Deal found 4/16

$1,066

Sat 5/311:00 amIAD - SIN

1 stop22h 45mAir India

Sat 5/109:00 amSIN - IAD

1 stop34h 40mAir India

Deal found 4/16

$1,068

Sat 5/314:35 pmDCA - SIN

2 stops50h 30mAir Canada

Sat 6/79:10 amSIN - DCA

2 stops37h 09mAir Canada

Deal found 4/16

$1,088

Mon 4/289:00 pmIAD - SIN

2 stops27h 55mQatar Airways

Mon 5/126:45 pmSIN - IAD

1 stop25h 55mQatar Airways

Deal found 4/17

$1,096

Thu 9/188:07 pmIAD - SIN

1 stop35h 03mSingapore Airlines

Mon 9/299:25 amSIN - IAD

2 stops42h 34mSingapore Airlines

Deal found 4/16

$1,097

Sat 8/165:35 pmIAD - SIN

2 stops30h 10mCathay Pacific

Fri 8/298:05 pmSIN - IAD

2 stops50h 40mCathay Pacific

Deal found 4/16

$1,161

Wed 5/79:40 pmIAD - SIN

2 stops29h 10mEthiopian Air

Fri 5/232:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 4/17

$1,185

Mon 4/216:05 pmIAD - SIN

1 stop24h 40mUnited Airlines

Wed 4/238:40 pmSIN - IAD

1 stop30h 10mUnited Airlines

Deal found 4/17

$1,193

Best flights from District of Columbia to Singapore
Discover carefully curated flight deals from District of Columbia to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Tue 4/2211:00 pmIAD - SIN

1 stop34h 55mMultiple Airlines

Wed 4/303:45 amSIN - IAD

1 stop24h 00mMultiple Airlines

Deal found 4/16

$1,003

Thu 5/89:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Mon 5/1211:10 pmSIN - IAD

1 stop32h 35mTurkish Airlines

Deal found 4/17

$1,029

Wed 5/2110:19 pmIAD - SIN

2 stops44h 46mAir Canada

Sun 6/89:10 amSIN - IAD

2 stops36h 31mAir Canada

Deal found 4/17

$1,037

Mon 4/2811:54 amDCA - SIN

2 stops29h 36mCathay Pacific

Sun 5/111:50 amSIN - DCA

2 stops32h 25mCathay Pacific

Deal found 4/17

$1,052

Mon 4/219:00 pmIAD - SIN

1 stop36h 00mJetBlue

Tue 5/66:45 pmSIN - IAD

1 stop25h 55mJetBlue

Deal found 4/16

$1,066

Sat 5/311:00 amIAD - SIN

1 stop22h 45mAir India

Sat 5/109:00 amSIN - IAD

1 stop34h 40mAir India

Deal found 4/16

$1,068

Mon 4/289:00 pmIAD - SIN

2 stops27h 55mQatar Airways

Mon 5/126:45 pmSIN - IAD

1 stop25h 55mQatar Airways

Deal found 4/17

$1,096

Wed 5/79:40 pmIAD - SIN

2 stops29h 10mEthiopian Air

Fri 5/232:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 4/17

$1,185

Mon 4/216:05 pmIAD - SIN

1 stop24h 40mUnited Airlines

Wed 4/238:40 pmSIN - IAD

1 stop30h 10mUnited Airlines

Deal found 4/17

$1,193

Thu 9/189:00 amDCA - SIN

2 stops27h 20mAmerican Airlines

Sun 9/281:55 amSIN - DCA

2 stops26h 04mAmerican Airlines

Deal found 4/16

$1,217

Tue 5/67:25 amIAD - SIN

2 stops33h 35mDelta

Thu 5/151:10 amSIN - IAD

2 stops35h 18mDelta

Deal found 4/15

$1,257

Mon 9/85:06 pmDCA - SIN

2 stops31h 29mChina Airlines

Fri 9/121:45 pmSIN - DCA

2 stops43h 14mChina Airlines

Deal found 4/16

$1,266

Last-minute flights from District of Columbia to Singapore
Discover last-minute flight deals from District of Columbia to Singapore. Data last updated April 17, 2025 and is based on user searches.

Mon 4/219:00 pmIAD - SIN

1 stop36h 00mJetBlue

Tue 5/66:45 pmSIN - IAD

1 stop25h 55mJetBlue

Deal found 4/16

$1,066

Mon 4/216:05 pmIAD - SIN

1 stop24h 40mUnited Airlines

Wed 4/238:40 pmSIN - IAD

1 stop30h 10mUnited Airlines

Deal found 4/17

$1,193

Tue 4/2211:00 pmIAD - SIN

1 stop34h 55mMultiple Airlines

Wed 4/303:45 amSIN - IAD

1 stop24h 00mMultiple Airlines

Deal found 4/16

$1,003

Tue 4/2211:00 amIAD - SIN

1 stop32h 30mAir India

Tue 4/299:00 amSIN - IAD

1 stop34h 40mAir India

Deal found 4/16

$1,082

Tue 4/229:00 pmIAD - SIN

2 stops30h 35mQatar Airways

Thu 5/110:30 amSIN - IAD

1 stop41h 10mQatar Airways

Deal found 4/17

$1,122

Tue 4/224:00 pmIAD - SIN

1 stop26h 45mUnited Airlines

Sun 4/2711:05 amSIN - IAD

1 stop40h 35mUnited Airlines

Deal found 4/16

$1,194

Tue 4/229:00 pmIAD - SIN

2 stops27h 55mMalaysia Airlines

Mon 4/289:15 pmSIN - IAD

2 stops30h 25mMalaysia Airlines

Deal found 4/16

$1,311

Tue 4/2212:00 pmIAD - SIN

2 stops57h 40mEgyptair

Sun 4/279:10 pmSIN - IAD

2 stops44h 00mEgyptair

Deal found 4/16

$2,238

Wed 4/231:15 pmIAD - SIN

1 stop27h 45mKorean Air

Sun 4/271:10 amSIN - IAD

1 stop22h 05mKorean Air

Deal found 4/17

$1,383

Wed 4/236:00 amIAD - SIN

2 stops35h 00mDelta

Sun 4/271:10 amSIN - IAD

2 stops41h 10mDelta

Deal found 4/17

$1,507

Wed 4/234:07 pmIAD - SIN

2 stops50h 58mAir Canada

Sun 5/49:10 amSIN - IAD

2 stops38h 04mAir Canada

Deal found 4/16

$5,397

Wed 4/234:10 pmDCA - SIN

2 stops50h 55mAir Canada

Sun 5/49:10 amSIN - DCA

2 stops25h 18mAir Canada

Deal found 4/16

$5,403

One-way flights from District of Columbia to Singapore
Search for one-way flight options from District of Columbia to Singapore. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Sat 5/311:00 amIAD - SIN

1 stop32h 30mAir India

Deal found 4/17

$423

Wed 5/286:45 pmIAD - SIN

3 stops40h 15mMultiple Airlines

Deal found 4/15

$486

Fri 5/166:50 pmIAD - SIN

2 stops56h 55mSAUDIA

Deal found 4/16

$497

Fri 5/161:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Deal found 4/16

$510

Wed 4/3010:00 pmDCA - SIN

2 stops43h 30mCathay Pacific

Deal found 4/16

$537

Thu 8/149:40 amDCA - SIN

2 stops33h 25mAir Canada

Deal found 4/16

$549

Wed 4/306:00 pmDCA - SIN

3 stops42h 50mMultiple Airlines

Deal found 4/16

$594

Mon 7/75:12 pmIAD - SIN

2 stops49h 53mAir Canada

Deal found 4/16

$653

Tue 7/227:00 amDCA - SIN

1 stop23h 25mUnited Airlines

Deal found 4/16

$679

Wed 5/218:59 amDCA - SIN

2 stops26h 41mKorean Air

Deal found 4/17

$713

Wed 7/29:00 pmIAD - SIN

1 stop30h 45mQatar Airways

Deal found 4/17

$719

Wed 7/27:59 pmIAD - SIN

2 stops28h 36mChina Airlines

Deal found 4/17

$737

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia 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

Fri 5/2

1:30 pm-8:45 am

1 stop31h 15m

Singapore Changi

Wed 5/7

3:45 am-3:45 pm

1 stop24h 00m

$1,005

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 8/9

9:40 pm-5:55 pm

1 stop32h 15m

Singapore Changi

Sun 8/24

10:15 am-11:45 am

1 stop37h 30m

$1,028

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/21

10:19 pm-7:05 am

2 stops44h 46m

Singapore Changi

Sun 6/8

9:10 am-9:41 am

2 stops36h 31m

$1,037

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 4/28

11:54 am-5:30 am

2 stops29h 36m

Singapore Changi

Sun 5/11

1:50 am-10:15 pm

2 stops32h 25m

$1,052

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 5/3

11:00 am-9:45 pm

1 stop22h 45m

Singapore Changi

Sat 5/10

9:00 am-7:40 am

1 stop34h 40m

$1,068

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 5/31

9:40 am-7:05 am

2 stops57h 25m

Singapore Changi

Sat 6/7

9:10 am-10:19 am

2 stops37h 09m

$1,088

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 4/28

9:00 pm-12:55 pm

2 stops27h 55m

Singapore Changi

Sun 5/11

3:10 am-3:40 pm

1 stop24h 30m

$1,096

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 9/18

8:07 pm-7:10 pm

1 stop35h 03m

Singapore Changi

Mon 9/29

9:25 am-3:59 pm

2 stops42h 34m

$1,097

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 10/3

11:00 am-9:00 pm

1 stop22h 00m

Singapore Changi

Sat 10/11

3:10 am-3:40 pm

1 stop24h 30m

$1,104

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 8/16

5:35 pm-11:45 am

2 stops30h 10m

Singapore Changi

Fri 8/29

8:05 pm-10:45 am

2 stops50h 40m

$1,161

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 48 results

...

Best time to book a flight from District of Columbia to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from District of Columbia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Singapore

What is the cheapest month to book a flight from District of Columbia to Singapore?

Currently, September is the cheapest month in which you can book a flight from District of Columbia to Singapore (average of $1,011). Flying from District of Columbia to Singapore in December is currently the most expensive (average of $1,684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to SG?

When flying from District of Columbia to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Singapore by month

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

To help decide which airline to fly from District of Columbia to Singapore, see what other customers have to say about Korean Air, Japan Airlines and China Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,064 reviews

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Japan Airlines

8.3

Very good

1,447 reviews

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

China Airlines

8.2

Very good

729 reviews

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Singapore Airlines

8.1

Very good

1,288 reviews

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

8.0

Very good

7,917 reviews

Korean Air

8.4

Very good

1,064 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

What are the cheapest airlines to fly from District of Columbia to Singapore one-way?
One-way options have recently been found by users for as low as $423 on Air India. Other airlines that offer cheap prices include SAUDIA from $497 and Turkish Airlines from $510 one-way.
Can I find deals for flights from District of Columbia to Singapore that include hotel bookings?
Yes. In addition to deals on District of Columbia to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Singapore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Singapore.
Can I find deals for business class flights from District of Columbia to Singapore?
Yes. Cheapflights offers flight deals from District of Columbia to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from District of Columbia to Singapore?
Currently, September is the cheapest month in which you can book a flight from District of Columbia to Singapore (average of $1,011). Flying from District of Columbia to Singapore in December is currently the most expensive (average of $1,684). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from District of Columbia to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$830	Average$994	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$904	Average$1,469	FlexibilityNo cancel fee	On-time69%
Qatar Airways	Cheapest$1,014	Average$1,287	FlexibilityNo cancel fee	On-time68%
Delta	Cheapest$1,015	Average$2,280	FlexibilityNo cancel fee	On-timeN/A
Korean Air	Cheapest$1,037	Average$1,346	FlexibilityNo cancel fee	On-time81%
JetBlue	Cheapest$1,043	Average$1,186	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$1,124	Average$1,490	FlexibilityNo cancel fee	On-time71%
Singapore Airlines	Cheapest$1,287	Average$1,780	FlexibilityNo cancel fee	On-time81%
ANA	Cheapest$1,581	Average$2,169	FlexibilityNo cancel fee	On-time80%

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$406+ Cheap flights from District of Columbia to Singapore

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Singapore with Cheapflights

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Cheap flight deals from District of Columbia to Singapore

Keep the following information in mind while searching for District of Columbia to Singapore flight deals. Data was last updated April 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from District of Columbia to Singapore

Cheapest flights from District of Columbia to SingaporeExplore the most affordable flight options available from District of Columbia to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Explore the most affordable flight options available from District of Columbia to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Singapore that are best for you.

Best time to book a flight from District of Columbia to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Singapore

What is the cheapest month to book a flight from District of Columbia to Singapore?

What is the cheapest time of day to fly from DC to SG?

Find hourly flight availability from District of Columbia to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

Reviews of airlines servicing Singapore

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from District of Columbia to Singapore one-way?

Can I find deals for flights from District of Columbia to Singapore that include hotel bookings?

How can I find direct flights from District of Columbia to Singapore?

Can I find deals for business class flights from District of Columbia to Singapore?

What is the cheapest month to book a flight from District of Columbia to Singapore?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Singapore

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from District of Columbia to Singapore

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Cheapest flights from District of Columbia to Singapore
Explore the most affordable flight options available from District of Columbia to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.