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Cheap flights from Washington, D.C. Reagan-National Airport to Singapore from $423

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. Reagan-National Airport to Singapore departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
7:31 pm - 12:25 pm
DCA
-
SIN
28h 54m
2 stops
Cathay Pacific Logo
8:05 pm - 12:55 am
SIN
-
DCA
40h 50m
2 stops
$1,002Cathay Pacific
Thu, Aug 27 - Mon, Sep 28
Air Canada Logo
6:00 am - 5:15 am
DCA
-
SIN
35h 15m
2 stops
Air Canada Logo
7:00 am - 9:55 pm
SIN
-
DCA
26h 55m
2 stops
$1,025Air Canada
Tue, Apr 28 - Tue, Jun 2
Cathay Pacific Logo
8:20 am - 11:45 am
DCA
-
SIN
39h 25m
2 stops
Cathay Pacific Logo
8:05 pm - 12:51 am
SIN
-
DCA
40h 46m
2 stops
$1,032Cathay Pacific
Sun, Aug 23 - Thu, Sep 3
Cathay Pacific Logo
11:36 am - 5:30 am
DCA
-
SIN
29h 54m
2 stops
Cathay Pacific Logo
7:20 am - 11:59 pm
SIN
-
DCA
28h 39m
2 stops
$1,047Cathay Pacific
Tue, Apr 14 - Tue, Apr 21
Air Canada Logo
11:00 am - 5:15 am
DCA
-
SIN
30h 15m
2 stops
Air Canada Logo
7:00 am - 10:19 am
SIN
-
DCA
39h 19m
2 stops
$1,048Air Canada
Sun, Apr 12 - Tue, May 5
Cathay Pacific Logo
7:31 pm - 12:25 pm
DCA
-
SIN
28h 54m
2 stops
Cathay Pacific Logo
8:05 pm - 12:55 am
SIN
-
DCA
40h 50m
2 stops
$1,077Cathay Pacific
Thu, Aug 27 - Mon, Sep 28
Air Canada Logo
6:00 am - 5:15 am
DCA
-
SIN
35h 15m
2 stops
Air Canada Logo
7:00 am - 10:19 am
SIN
-
DCA
39h 19m
2 stops
$1,085Air Canada
Sun, Apr 12 - Tue, May 5
Singapore Airlines Logo
9:59 am - 7:50 am
DCA
-
SIN
33h 51m
1 stop
Singapore Airlines Logo
8:45 pm - 8:00 pm
SIN
-
DCA
35h 15m
1 stop
$1,087Singapore Airlines
Thu, Aug 27 - Mon, Sep 28
Air Canada Logo
11:00 am - 5:15 am
DCA
-
SIN
30h 15m
2 stops
Air Canada Logo
7:00 am - 7:53 pm
SIN
-
DCA
24h 53m
2 stops
$1,092Air Canada
Fri, Apr 17 - Thu, Apr 30
Cathay Pacific Logo
5:30 pm - 11:45 am
DCA
-
SIN
30h 15m
2 stops
Cathay Pacific Logo
8:05 pm - 8:15 pm
SIN
-
DCA
36h 10m
2 stops
$1,097Cathay Pacific
Thu, Aug 27 - Mon, Sep 28

Air Canada flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets
Air Canada
Apr 28
DCA6:00 amWashington, D.C. Reagan-National
35h 15m
2 stops
SIN5:15 amSingapore Changi
Jun 2
SIN7:00 amSingapore Changi
26h 55m
2 stops
DCA9:55 pmWashington, D.C. Reagan-National
$1,025
Air Canada
Apr 12
DCA11:00 amWashington, D.C. Reagan-National
30h 15m
2 stops
SIN5:15 amSingapore Changi
May 5
SIN7:00 amSingapore Changi
39h 19m
2 stops
DCA10:19 amWashington, D.C. Reagan-National
$1,048
Air Canada
Apr 12
DCA6:00 amWashington, D.C. Reagan-National
35h 15m
2 stops
SIN5:15 amSingapore Changi
May 5
SIN7:00 amSingapore Changi
39h 19m
2 stops
DCA10:19 amWashington, D.C. Reagan-National
$1,085

Singapore Airlines flights from Washington, D.C. Reagan-National Airport to Singapore

Our best Singapore Airlines deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets
Singapore Airlines
Aug 27
DCA9:59 amWashington, D.C. Reagan-National
33h 51m
1 stop
SIN7:50 amSingapore Changi
Sep 28
SIN8:45 pmSingapore Changi
35h 15m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$1,087
Singapore Airlines
Aug 27
DCA9:59 amWashington, D.C. Reagan-National
33h 41m
1 stop
SIN7:40 amSingapore Changi
Sep 28
SIN8:45 pmSingapore Changi
35h 15m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$1,139
Singapore Airlines
Aug 27
DCA9:59 amWashington, D.C. Reagan-National
33h 41m
1 stop
SIN7:40 amSingapore Changi
Sep 28
SIN8:45 pmSingapore Changi
35h 15m
1 stop
DCA8:00 pmWashington, D.C. Reagan-National
$1,148

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated March 6, 2026.
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

Cheapest round-trip

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/27

7:31 pm-12:25 pm

2 stops28h 54m

Singapore Changi

Mon 9/28

8:05 pm-12:55 am

2 stops40h 50m

$1,002

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 4/28

6:00 am-5:15 am

2 stops35h 15m

Singapore Changi

Tue 6/2

7:00 am-9:55 pm

2 stops26h 55m

$1,025

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 8/23

8:20 am-11:45 am

2 stops39h 25m

Singapore Changi

Thu 9/3

8:05 pm-12:51 am

2 stops40h 46m

$1,032

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 4/14

11:36 am-5:30 am

2 stops29h 54m

Singapore Changi

Tue 4/21

7:20 am-11:59 pm

2 stops28h 39m

$1,047

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 4/12

11:00 am-5:15 am

2 stops30h 15m

Singapore Changi

Tue 5/5

7:00 am-10:19 am

2 stops39h 19m

$1,048

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/27

7:31 pm-12:25 pm

2 stops28h 54m

Singapore Changi

Mon 9/28

8:05 pm-12:55 am

2 stops40h 50m

$1,077

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 4/12

6:00 am-5:15 am

2 stops35h 15m

Singapore Changi

Tue 5/5

7:00 am-10:19 am

2 stops39h 19m

$1,085

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/27

9:59 am-7:50 am

1 stop33h 51m

Singapore Changi

Mon 9/28

8:45 pm-8:00 pm

1 stop35h 15m

$1,087
Quickest round-trip

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 4/17

11:00 am-5:15 am

2 stops30h 15m

Singapore Changi

Thu 4/30

7:00 am-7:53 pm

2 stops24h 53m

$1,092

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/27

5:30 pm-11:45 am

2 stops30h 15m

Singapore Changi

Mon 9/28

8:05 pm-8:15 pm

2 stops36h 10m

$1,097

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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

Can stopping save me money on Washington, D.C. Reagan-National Airport to Singapore flights?

You could potentially save up to 22% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Singapore flight.

Cheap Washington, D.C. Reagan-National Airport to Singapore flight deals and tips

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

Fastest flight time

28h 11m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Singapore takes 28h 11m
There are no direct flights from Washington, D.C. Reagan-National Airport to Singapore. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Singapore.
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  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Singapore?

    Prices for flights from Washington, D.C. Reagan-National Airport to Singapore were last updated today.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Singapore?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Singapore.

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

    The required travel and health documents for your Singapore trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Singapore. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

Finding the right flight to Singapore from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Singapore quick and easy, saving you time and money.

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

All flight searches from Washington, D.C. to Singapore on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Washington, D.C. to Singapore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from Washington, D.C. and alert you when they change.

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