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$508+ Cheap flights from Reagan-National (DCA) 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.
DCA — SIN
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Reagan-National to Singapore

Keep the following information in mind while searching for Reagan-National to Singapore flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,088
(Air Canada)

One-way from

$508
(StudentUniverse)

Popular in

December

Cheapest in

November

Average price

$1,269
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 Washington, D.C. Reagan-National to Singapore
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One-way flight from Washington, D.C. Reagan-National to Singapore
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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 May 2025
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Find flight deals from Reagan-National to Singapore

Cheapest flights from Reagan-National to Singapore
Explore the most affordable flight options available from Reagan-National to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Gotogate deal was found by Cheapflights users on 4/30. 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.
Thu 5/16:59 amDCA - SIN
2 stops60h 06mAir Canada
Wed 5/146:15 amSIN - DCA
2 stops45h 34mAir Canada
Deal found 4/30$1,038
This Flysmarter deal was found by Cheapflights users on 4/30. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/511:55 amDCA - SIN
2 stops29h 35mMultiple Airlines
Tue 5/208:00 amSIN - DCA
2 stops25h 34mMultiple Airlines
Deal found 4/30$1,066
This Kissandfly.com deal was found by Cheapflights users on 4/30. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:54 amDCA - SIN
2 stops35h 51mCathay Pacific
Tue 5/131:50 amSIN - DCA
2 stops29h 17mCathay Pacific
Deal found 4/30$1,097
This United Airlines deal was found by Cheapflights users on 4/30. 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 4/30$1,182
This Kissandfly.com deal was found by Cheapflights users on 4/30. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/15:59 pmDCA - SIN
1 stop24h 46mLufthansa
Wed 5/149:00 amSIN - DCA
2 stops26h 59mLufthansa
Deal found 4/30$1,199
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Fri 9/58:59 amDCA - SIN
1 stop32h 16mSingapore Airlines
Thu 9/118:45 pmSIN - DCA
1 stop36h 14mSingapore Airlines
Deal found 4/30$1,204
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:48 amDCA - SIN
2 stops26h 32mAmerican Airlines
Tue 9/91:55 amSIN - DCA
2 stops26h 24mAmerican Airlines
Deal found 4/30$1,217
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:30 pmDCA - SIN
2 stops27h 10mANA
Wed 10/1511:05 amSIN - DCA
2 stops39h 11mANA
Deal found 4/30$1,251
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:05 amDCA - SIN
2 stops34h 55mDelta
Tue 6/171:10 amSIN - DCA
2 stops32h 50mDelta
Deal found 4/30$1,350
This Ovago deal was found by Cheapflights users on 4/30. 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.
Tue 5/275:49 pmDCA - SIN
2 stops35h 41mJapan Airlines
Tue 6/39:50 pmSIN - DCA
2 stops36h 25mJapan Airlines
Deal found 4/30$1,379
This Finnair deal was found by Cheapflights users on 4/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:45 pmDCA - SIN
2 stops34h 40mFinnair
Wed 10/159:35 pmSIN - DCA
2 stops37h 20mFinnair
Deal found 4/30$1,541
This Gotogate deal was found by Cheapflights users on 4/30. 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.
Mon 5/56:42 amDCA - SIN
2 stops26h 18mQatar Airways
Mon 5/193:10 amSIN - DCA
2 stops27h 57mQatar Airways
Deal found 4/30$1,545

Cheapflights Fare Finder

Customize your flight search to find flights from Reagan-National 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 May 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Singapore that are best for you.

Fly from

Reagan-National

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 10/1

4:35 pm-7:05 am

2 stops50h 30m

Singapore Changi

Wed 10/15

6:15 am-9:51 pm

2 stops27h 36m

$1,038

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/29

7:00 am-6:25 pm

1 stop23h 25m

Singapore Changi

Thu 10/16

8:45 am-9:13 pm

1 stop24h 28m

$1,194

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 9/5

8:59 am-5:15 am

1 stop32h 16m

Singapore Changi

Thu 9/11

8:45 pm-8:59 pm

1 stop36h 14m

$1,204

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9/18

9:00 am-12:20 am

2 stops27h 20m

Singapore Changi

Sun 9/28

1:55 am-11:00 pm

2 stops33h 05m

$1,210

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/1

9:48 am-12:20 am

2 stops26h 32m

Singapore Changi

Tue 9/9

1:55 am-4:19 pm

2 stops26h 24m

$1,217

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 8/13

12:31 pm-5:30 am

2 stops28h 59m

Singapore Changi

Tue 8/19

8:00 am-1:09 am

2 stops29h 09m

$1,247

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 9/30

3:30 pm-6:40 am

2 stops27h 10m

Singapore Changi

Wed 10/15

11:05 am-2:16 pm

2 stops39h 11m

$1,251

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 6/11

9:39 am-5:00 am

2 stops31h 21m

Singapore Changi

Wed 6/18

10:30 pm-11:22 pm

2 stops36h 52m

$1,350

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/8

6:59 am-12:45 am

2 stops29h 46m

Singapore Changi

Sun 9/14

1:00 am-7:44 pm

3 stops30h 44m

$1,380

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 10/4

7:45 pm-6:25 pm

2 stops34h 40m

Singapore Changi

Wed 10/15

9:35 pm-10:55 pm

2 stops37h 20m

$1,541

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 results
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Best time to book a flight from Reagan-National to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Reagan-National 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 Washington, D.C. Reagan-National Airport to Singapore

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Singapore?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Singapore (average of $1,011). Flying from Washington, D.C. Reagan-National Airport 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 DCA to SG?

Find hourly flight availability from Reagan-National 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport 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 May 1, 2025.
See what other customers who have flown with Korean Air, Japan Airlines and China Airlines from Washington, D.C. to Singapore have to say. 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
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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
1,068 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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
852 reviews
Korean Air
8.4
Very good
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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
1,068 reviews

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

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 Reagan-National 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 Washington, D.C. Reagan-National Airport to Singapore one-way?

    $508 is the cheapest one-way deal found within the past few days, from Cathay Pacific. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $602 and $679, respectively.

  • Can I find deals for flights from Reagan-National to Singapore that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Singapore?

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

  • Can I find deals for business class flights from Reagan-National to Singapore?

    Yes. Cheapflights offers flight deals from Reagan-National 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 Washington, D.C. Reagan-National Airport to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Singapore (average of $1,011). Flying from Washington, D.C. Reagan-National Airport 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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Alternative routes for Reagan-National to Singapore

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