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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Singapore (average of $994). Flying from Washington, D.C. Reagan-National Airport to Singapore in December is currently the most expensive (average of $1,665). 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 day to fly from Washington, D.C. Reagan-National Airport to Singapore?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Singapore flight should consider departing on Monday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What airport do you fly into for flights to Singapore from Washington, D.C. Reagan-National?

Singapore Changi (SIN) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Singapore. You should not have trouble finding flights to Changi from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Singapore airport from Washington, D.C. Reagan-National. It is only a 10.5 mi journey from Changi (SIN) to Singapore’s city center.

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.

$445+ Cheap Flights from Washington, D.C. Reagan-National Airport to Singapore

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Cheap flight deals from Reagan-National to Singapore

Round-trip from	$916 (Trip.com)
One-way from	$445 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$1,191

From Washington, D.C. Reagan-National to Singapore Changi

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One-way flight from Washington, D.C. Reagan-National to Singapore Changi

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Highest demand for flights based on searches. 2% potential increase in price ($32 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($66 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 17, 2025.

Tue 11/46:58 pmDCA - SIN

1 stop35h 07mMultiple Airlines

Thu 11/139:00 amSIN - DCA

1 stop25h 59mMultiple Airlines

Deal found 9/17

$916

Sun 9/217:59 pmDCA - SIN

2 stops34h 26mUnited Airlines

Mon 10/68:45 amSIN - DCA

2 stops25h 25mUnited Airlines

Deal found 9/15

$1,038

Thu 10/307:00 amDCA - SIN

1 stop25h 15mUnited Airlines

Wed 11/1210:20 pmSIN - DCA

1 stop36h 23mUnited Airlines

Deal found 9/15

$1,045

Thu 10/166:00 amDCA - SIN

2 stops37h 05mAir Canada

Thu 10/239:10 amSIN - DCA

2 stops37h 10mAir Canada

Deal found 9/16

$1,073

Tue 9/169:40 amDCA - SIN

2 stops33h 25mAir Canada

Tue 9/239:10 amSIN - DCA

2 stops35h 49mAir Canada

Deal found 9/15

$1,080

Tue 11/116:00 amDCA - SIN

2 stops29h 55mAir Canada

Tue 11/188:50 amSIN - DCA

2 stops38h 36mAir Canada

Deal found 9/14

$1,086

Sat 11/15:00 pmDCA - SIN

1 stop36h 45mSingapore Airlines

Fri 11/78:45 pmSIN - DCA

1 stop36h 15mSingapore Airlines

Deal found 9/15

$1,090

Mon 9/227:59 pmDCA - SIN

2 stops34h 26mUnited Airlines

Sun 10/58:40 pmSIN - DCA

2 stops26h 18mUnited Airlines

Deal found 9/17

$1,095

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

Sat 11/15:00 pmDCA - SIN

1 stop36h 45mSingapore Airlines

Fri 11/78:45 pmSIN - DCA

1 stop36h 15mSingapore Airlines

Deal found 9/15

$1,090

Thu 10/306:00 amDCA - SIN

2 stops37h 00mAir Canada

Thu 11/68:50 amSIN - DCA

2 stops26h 06mAir Canada

Deal found 9/15

$1,116

Tue 11/43:30 pmDCA - SIN

2 stops27h 30mUnited Airlines

Thu 11/1310:10 amSIN - DCA

1 stop24h 33mUnited Airlines

Deal found 9/17

$1,120

Wed 10/225:59 pmDCA - SIN

1 stop24h 16mUnited Airlines

Wed 10/2910:20 pmSIN - DCA

2 stops25h 09mUnited Airlines

Deal found 9/15

$1,125

Mon 9/293:30 pmDCA - SIN

2 stops26h 45mUnited Airlines

Thu 10/28:45 amSIN - DCA

1 stop25h 06mUnited Airlines

Deal found 9/16

$1,125

Thu 10/307:00 amDCA - SIN

1 stop25h 15mUnited Airlines

Thu 11/610:10 amSIN - DCA

1 stop24h 33mUnited Airlines

Deal found 9/16

$1,125

Tue 11/115:59 pmDCA - SIN

1 stop25h 01mUnited Airlines

Tue 11/1810:20 pmSIN - DCA

2 stops29h 35mUnited Airlines

Deal found 9/14

$1,125

Wed 11/55:59 pmDCA - SIN

1 stop25h 01mUnited Airlines

Tue 11/1810:10 amSIN - DCA

1 stop24h 33mUnited Airlines

Deal found 9/17

$1,125

Last-minute flights from Reagan-National to Singapore
Discover last-minute flight deals from Reagan-National to Singapore. Data last updated September 17, 2025 and is based on user searches.

Tue 9/169:40 amDCA - SIN

2 stops33h 25mAir Canada

Tue 9/239:10 amSIN - DCA

2 stops35h 49mAir Canada

Deal found 9/15

$1,080

Sun 9/217:59 pmDCA - SIN

2 stops34h 26mUnited Airlines

Mon 10/68:45 amSIN - DCA

2 stops25h 25mUnited Airlines

Deal found 9/15

$1,038

Mon 9/227:59 pmDCA - SIN

2 stops34h 26mUnited Airlines

Sun 10/58:40 pmSIN - DCA

2 stops26h 18mUnited Airlines

Deal found 9/17

$1,095

Wed 10/154:35 pmDCA - SIN

2 stops50h 30mAir Canada

Wed 10/226:15 amSIN - DCA

2 stops27h 36mAir Canada

Deal found 9/16

$1,086

Wed 10/154:35 pmDCA - SIN

2 stops50h 30mAir Canada

Sun 10/268:50 amSIN - DCA

2 stops37h 36mAir Canada

Deal found 9/14

$1,103

Thu 10/166:00 amDCA - SIN

2 stops37h 05mAir Canada

Thu 10/239:10 amSIN - DCA

2 stops37h 10mAir Canada

Deal found 9/16

$1,073

Thu 10/307:00 amDCA - SIN

1 stop25h 15mUnited Airlines

Wed 11/1210:20 pmSIN - DCA

1 stop36h 23mUnited Airlines

Deal found 9/15

$1,045

One-way flights from Reagan-National to Singapore
Search for one-way flight options from Reagan-National to Singapore. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Sat 10/186:31 pmDCA - SIN

3 stops40h 49mMultiple Airlines

Deal found 9/16

$445

Mon 9/291:00 pmDCA - SIN

3 stops36h 20mMultiple Airlines

Deal found 9/15

$528

Thu 10/309:59 amDCA - SIN

2 stops39h 01mMultiple Airlines

Deal found 9/15

$547

Mon 9/295:30 pmDCA - SIN

2 stops30h 15mCathay Pacific

Deal found 9/15

$566

Fri 10/36:31 pmDCA - SIN

3 stops40h 49mMultiple Airlines

Deal found 9/17

$575

Sun 9/218:20 amDCA - SIN

2 stops39h 25mCathay Pacific

Deal found 9/16

$584

Fri 10/319:59 amDCA - SIN

2 stops39h 01mMultiple Airlines

Deal found 9/16

$590

Mon 12/14:10 pmDCA - SIN

2 stops49h 50mAir Canada

Deal found 9/16

$624

Thu 10/307:00 amDCA - SIN

1 stop25h 15mUnited Airlines

Deal found 9/15

$629

Tue 10/144:23 pmDCA - SIN

2 stops25h 52mUnited Airlines

Deal found 9/15

$633

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 11/1

5:00 pm-5:45 pm

1 stop36h 45m

Singapore Changi

Fri 11/7

8:45 pm-8:00 pm

1 stop36h 15m

$1,090

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 10/30

6:00 am-7:00 am

2 stops37h 00m

Singapore Changi

Thu 11/6

8:50 am-9:56 pm

2 stops26h 06m

$1,116

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/4

3:30 pm-8:00 am

2 stops27h 30m

Singapore Changi

Thu 11/13

10:10 am-9:43 pm

1 stop24h 33m

$1,120

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 10/22

5:59 pm-6:15 am

1 stop24h 16m

Singapore Changi

Wed 10/29

10:20 pm-11:29 am

2 stops25h 09m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/29

3:30 pm-6:15 am

2 stops26h 45m

Singapore Changi

Thu 10/2

8:45 am-9:51 pm

1 stop25h 06m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 10/30

7:00 am-8:15 pm

1 stop25h 15m

Singapore Changi

Thu 11/6

10:10 am-9:43 pm

1 stop24h 33m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11/11

5:59 pm-8:00 am

1 stop25h 01m

Singapore Changi

Tue 11/18

10:20 pm-2:55 pm

2 stops29h 35m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 11/5

5:59 pm-8:00 am

1 stop25h 01m

Singapore Changi

Tue 11/18

10:10 am-9:43 pm

1 stop24h 33m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 10/18

6:31 pm-11:20 pm

3 stops40h 49m

$445

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 10/30

9:59 am-1:00 pm

2 stops39h 01m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 18 results

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 time of day to fly from DCA to SIN?

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from Washington, D.C. Reagan-National Airport to Singapore by exploring options for tickets in the afternoon.

Related info for your journey

What airport do you fly into for flights to Singapore from Washington, D.C. Reagan-National?
Singapore Changi (SIN) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Singapore. You should not have trouble finding flights to Changi from Washington, D.C. Reagan-National; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Singapore airport from Washington, D.C. Reagan-National. It is only a 10.5 mi journey from Changi (SIN) to Singapore’s city center.
How long is the flight from Washington, D.C. Reagan-National Airport to Singapore?
A quick flight from Washington, D.C. Reagan-National Airport to Singapore can take about 27h 30m. Singapore Airlines provides one of the quickest options available for as low as $1,120. There are 9651 mi between Washington, D.C. Reagan-National Airport and Singapore. This flight may include one or multiple stops.
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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Singapore (average of $994). Flying from Washington, D.C. Reagan-National Airport to Singapore in December is currently the most expensive (average of $1,665). 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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$445+ Cheap flights from Reagan-National (DCA) 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Reagan-National to Singapore

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Find flight deals from Reagan-National to Singapore

Cheapest flights from Reagan-National to SingaporeExplore 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 September 17, 2025.

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 September 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Singapore that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Singapore

What is the cheapest time of day to fly from DCA to SIN?

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 airport do you fly into for flights to Singapore from Washington, D.C. Reagan-National?

How long is the flight from Washington, D.C. Reagan-National Airport to Singapore?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Reagan-National to Singapore

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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 September 17, 2025.