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Cheap flights from Washington, D.C. Reagan-National Airport to Singapore from $507

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 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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.
Gulf Air Logo
2:55 pm - 12:45 pm
DCA
-
SIN
57h 50m
2 stops
Gulf Air Logo
8:00 pm - 10:57 pm
SIN
-
DCA
38h 57m
2 stops
$1,041Gulf Air
Tue, Oct 20 - Thu, Oct 29
Gulf Air Logo
2:55 pm - 12:45 pm
DCA
-
SIN
57h 50m
2 stops
Gulf Air Logo
8:00 pm - 10:57 pm
SIN
-
DCA
38h 57m
2 stops
$1,089Gulf Air
Sat, Oct 17 - Thu, Oct 29
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,103Air Canada
Tue, Aug 4 - Tue, Aug 25
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,104Air Canada
Tue, Aug 4 - Tue, Aug 25
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
28h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,111Air Canada
Thu, Aug 13 - Tue, Aug 25
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
28h 35m
2 stops
Air Canada Logo
10:50 pm - 3:40 pm
SIN
-
DCA
52h 50m
2 stops
$1,117Air Canada
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
8:40 pm - 5:15 am
DCA
-
SIN
44h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,119Air Canada
Wed, Aug 12 - Tue, Aug 25
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
52h 35m
2 stops
Air Canada Logo
8:30 am - 10:38 pm
SIN
-
DCA
27h 08m
2 stops
$1,121Air Canada
Wed, Oct 21 - Mon, Nov 2
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
28h 35m
2 stops
Air Canada Logo
6:15 am - 9:48 pm
SIN
-
DCA
27h 33m
2 stops
$1,122Air Canada
Thu, Aug 13 - Mon, Aug 24
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
6:15 am - 10:18 am
SIN
-
DCA
40h 03m
2 stops
$1,125Air Canada
Thu, Aug 13 - Thu, Aug 27

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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
Aug 4
DCA9:40 amWashington, D.C. Reagan-National
31h 35m
2 stops
SIN5:15 amSingapore Changi
Aug 25
SIN7:00 amSingapore Changi
26h 48m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
$1,103
Air Canada
Aug 4
DCA9:40 amWashington, D.C. Reagan-National
31h 35m
2 stops
SIN5:15 amSingapore Changi
Aug 25
SIN7:00 amSingapore Changi
26h 48m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
$1,104
Air Canada
Aug 13
DCA12:40 pmWashington, D.C. Reagan-National
28h 35m
2 stops
SIN5:15 amSingapore Changi
Aug 25
SIN7:00 amSingapore Changi
26h 48m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
$1,110

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

Our best Qatar Airways deals on Washington, D.C. Reagan-National Airport to Singapore flight tickets
Qatar Airways
Jul 10
DCA7:58 pmWashington, D.C. Reagan-National
31h 47m
2 stops
SIN3:45 pmSingapore Changi
Jul 24
SIN3:15 amSingapore Changi
55h 44m
2 stops
DCA10:59 pmWashington, D.C. Reagan-National
$1,588
Qatar Airways
Jul 4
DCA9:59 amWashington, D.C. Reagan-National
41h 46m
2 stops
SIN3:45 pmSingapore Changi
Jul 17
SIN3:15 amSingapore Changi
27h 53m
2 stops
DCA7:08 pmWashington, D.C. Reagan-National
$1,833
Qatar Airways
Jul 4
DCA6:15 amWashington, D.C. Reagan-National
27h 00m
2 stops
SIN9:15 pmSingapore Changi
Jul 12
SIN10:20 amSingapore Changi
33h 39m
2 stops
DCA7:59 amWashington, D.C. Reagan-National
$2,147

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 June 28, 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

Tue 10/20

2:55 pm-12:45 pm

2 stops57h 50m

Singapore Changi

Thu 10/29

8:00 pm-10:57 pm

2 stops38h 57m

$1,041

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 10/17

2:55 pm-12:45 pm

2 stops57h 50m

Singapore Changi

Thu 10/29

8:00 pm-10:57 pm

2 stops38h 57m

$1,089

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 8/4

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,103

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 8/4

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,104
Quickest round-trip

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/13

12:40 pm-5:15 am

2 stops28h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,111

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 9/15

12:40 pm-5:15 am

2 stops28h 35m

Singapore Changi

Tue 9/22

10:50 pm-3:40 pm

2 stops52h 50m

$1,117

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 8/12

8:40 pm-5:15 am

2 stops44h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,119

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 10/21

12:40 pm-5:15 am

2 stops52h 35m

Singapore Changi

Mon 11/2

8:30 am-10:38 pm

2 stops27h 08m

$1,121

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/13

12:40 pm-5:15 am

2 stops28h 35m

Singapore Changi

Mon 8/24

6:15 am-9:48 pm

2 stops27h 33m

$1,122

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 8/13

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Thu 8/27

6:15 am-10:18 am

2 stops40h 03m

$1,125

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Singapore from

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

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Singapore Changi?

Korean Air and Delta are the most popular carriers operating from Washington, D.C. Reagan-National to Singapore Changi

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Singapore according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Singapore (DCA to SIN) 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 35m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Singapore takes 28h 35m
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.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Singapore

  • How far is Washington, D.C. Reagan-National to Singapore Changi by plane?

    A flight from Washington, D.C. Reagan-National to Singapore Changi will travel around 9654.9 mi. A reasonable flight in good conditions will take 28h 35m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Singapore Changi Airport?

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

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

    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 Changi Airport.

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

    The required travel and health documents for your Singapore Changi Airport 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 Changi Airport. 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Singapore. momondo saves you time and could save you money on your trip.

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

Flights from Washington, D.C. to Singapore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Singapore from Washington, D.C..

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 not ready to book a flight from Washington, D.C. to Singapore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Singapore and let you know when they change.

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Cabin classes currently available on flights to Singapore

List of cabin classes available on flights landing in Singapore. Availability may vary depending on flight origin and airline.
First Class to Singapore
Business Class to Singaporefrom $2,305