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$455+ Cheap flights from District of Columbia to Singapore (SIN)

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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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 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,038
(Air Canada)

One-way from

$455
(FlightHub)

Popular in

December

Cheapest in

November

Average price

$1,055
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 Changi
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One-way flight from District of Columbia to Singapore Changi
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Highest demand for flights based on searches. 2% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average RT price).
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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 30, 2025.

This Gotogate deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:00 amIAD - SIN
1 stop32h 30mMultiple Airlines
Sun 10/57:45 pmSIN - IAD
2 stops36h 00mMultiple Airlines
Deal found 4/28$1,025
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:44 pmIAD - SIN
2 stops49h 21mAir Canada
Tue 5/136:15 amSIN - IAD
2 stops26h 53mAir Canada
Deal found 4/29$1,038
This Gurufare deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/711:55 amDCA - SIN
2 stops29h 35mCathay Pacific
Mon 5/121:50 amSIN - DCA
2 stops34h 56mCathay Pacific
Deal found 4/29$1,068
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/301:30 pmIAD - SIN
1 stop31h 15mTurkish Airlines
Fri 5/910:15 amSIN - IAD
1 stop37h 30mTurkish Airlines
Deal found 4/29$1,075
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/74:35 pmDCA - SIN
2 stops50h 30mAir Canada
Sat 6/149:10 amSIN - DCA
2 stops37h 09mAir Canada
Deal found 4/29$1,088
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:35 pmIAD - SIN
2 stops27h 55mAir India
Fri 5/98:30 pmSIN - IAD
1 stop23h 10mAir India
Deal found 4/29$1,101
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:00 pmIAD - SIN
2 stops35h 25mQatar Airways
Fri 5/166:45 pmSIN - IAD
1 stop32h 55mQatar Airways
Deal found 4/28$1,102
This Booking.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/101:30 pmIAD - SIN
2 stops39h 50mIndiGo
Fri 9/197:45 pmSIN - IAD
2 stops36h 00mIndiGo
Deal found 4/28$1,131
This Ovago deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Sat 9/279:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Deal found 4/28$1,138
This Booking.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/16:59 amDCA - SIN
2 stops29h 46mMultiple Airlines
Thu 9/111:10 amSIN - DCA
2 stops32h 41mMultiple Airlines
Deal found 4/29$1,162
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:15 pmIAD - SIN
1 stop42h 40mKorean Air
Tue 9/91:10 amSIN - IAD
1 stop21h 45mKorean Air
Deal found 4/29$1,179
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/55:59 pmDCA - SIN
1 stop24h 46mUnited Airlines
Tue 5/209:00 amSIN - DCA
1 stop24h 34mUnited Airlines
Deal found 4/29$1,190

Cheapflights Fare Finder

Customize your flight search to find flights from District of Columbia to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from District of Columbia to Singapore that are best for you.

Fly from

District of Columbia

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/7

5:44 pm-7:05 am

2 stops49h 21m

Singapore Changi

Tue 5/13

6:15 am-9:08 pm

2 stops26h 53m

$1,038

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 5/7

11:55 am-5:30 am

2 stops29h 35m

Singapore Changi

Mon 5/12

1:50 am-12:46 am

2 stops34h 56m

$1,068

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/14

1:30 pm-8:45 am

1 stop31h 15m

Singapore Changi

Mon 5/19

1:30 pm-4:14 pm

2 stops38h 44m

$1,079

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 6/7

4:35 pm-7:05 am

2 stops50h 30m

Singapore Changi

Sat 6/14

9:10 am-10:19 am

2 stops37h 09m

$1,088

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 5/4

9:00 pm-8:25 pm

2 stops35h 25m

Singapore Changi

Fri 5/16

6:45 pm-3:40 pm

1 stop32h 55m

$1,102

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 7/10

1:30 pm-5:20 pm

2 stops39h 50m

Singapore Changi

Fri 9/19

7:45 pm-7:45 pm

2 stops36h 00m

$1,131

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 5/15

9:40 pm-5:55 pm

1 stop32h 15m

Singapore Changi

Tue 5/20

11:10 pm-11:45 am

1 stop24h 35m

$1,135

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/28

11:00 am-7:30 am

1 stop32h 30m

Singapore Changi

Wed 6/4

11:00 pm-7:40 am

1 stop44h 40m

$1,137

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 5/5

5:59 pm-6:45 am

1 stop24h 46m

Singapore Changi

Tue 5/20

9:00 am-9:34 pm

1 stop24h 34m

$1,190

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/14

9:40 pm-2:50 pm

2 stops29h 10m

Singapore Changi

Tue 5/20

2:00 am-8:05 pm

2 stops30h 05m

$1,194

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 46 results
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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 SIN?

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 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Singapore as you normally would.

Rainfall in Singapore by month

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

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

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated April 30, 2025.
See what other customers who have flown with Korean Air, Japan Airlines and China Airlines from District of Columbia to Singapore have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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.
Japan Airlines
8.3
Very good
1,459 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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.
China Airlines
8.3
Very good
732 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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.
ANA
8.3
Very good
855 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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.
Singapore Airlines
8.1
Very good
1,292 reviews
Korean Air
8.4
Very good
1,066 reviews

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

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.

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 airport do you fly into for flights to Singapore from District of Columbia?

    For a flight from District of Columbia to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city.

  • 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 $455 on Turkish Airlines. Other airlines that offer cheap prices include IndiGo from $479 and Air India from $516 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

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Top 8 airlines flying from District of Columbia to Singapore

Discover the top 8 airlines that operate flights from District of Columbia to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$830Average$985FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$904Average$1,461FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$960Average$1,625FlexibilityNo cancel feeOn-time67%
Qatar AirwaysCheapest$1,014Average$1,282FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,024Average$1,159FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,037Average$1,322FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$1,097Average$1,681FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$1,124Average$1,285FlexibilityNo cancel feeOn-time71%

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