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Cheap flights from Singapore to Washington, D.C. from $450

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Singapore to Washington, D.C. departing on 11/20. 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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Cheap round-trip flights

Japan Airlines Logo
9:50 pm - 4:21 pmSIN-DCA
30h 31m2 stops
Japan Airlines Logo
10:08 pm - 6:10 amDCA-SIN
44h 02m2 stops
$740Japan Airlines
Find Deal
Mon, Jul 14 - Mon, Jul 21
Japan Airlines Logo
1:55 am - 11:11 pmSIN-DCA
33h 16m2 stops
Japan Airlines Logo
10:09 pm - 6:10 amDCA-SIN
44h 01m2 stops
$857Japan Airlines
Find Deal
Tue, Jul 22 - Wed, Aug 27
United Airlines Logo
11:05 am - 3:45 pmSIN-IAD
40h 40m1 stop
United Airlines Logo
1:20 pm - 6:15 amIAD-SIN
28h 55m2 stops
$881United Airlines
Find Deal
Wed, Jul 2 - Sat, Jul 5
United Airlines Logo
11:05 am - 10:05 amSIN-IAD
35h 00m1 stop
United Airlines Logo
1:20 pm - 6:15 amIAD-SIN
28h 55m2 stops
$882United Airlines
Find Deal
Tue, Jul 1 - Sun, Jul 13
Air Canada Logo
11:55 pm - 9:05 pmSIN-IAD
33h 10m2 stops
Air Canada Logo
5:37 pm - 12:45 amIAD-SIN
43h 08m2 stops
$944Air Canada
Find Deal
Sun, Oct 5 - Sun, Oct 19
Air Canada Logo
11:55 pm - 9:05 pmSIN-IAD
33h 10m2 stops
Air Canada Logo
5:37 pm - 7:05 amIAD-SIN
49h 28m2 stops
$962Air Canada
Find Deal
Sun, Oct 5 - Sat, Oct 18
IndiGo Logo
7:45 pm - 7:45 pmSIN-IAD
36h 00m2 stops
IndiGo Logo
9:40 pm - 5:45 pmIAD-SIN
32h 05m2 stops
$1,009IndiGo
Find Deal
Wed, Jul 2 - Sat, Jul 5
IndiGo Logo
7:45 pm - 7:45 pmSIN-IAD
36h 00m2 stops
IndiGo Logo
9:40 pm - 5:20 pmIAD-SIN
31h 40m2 stops
$1,015IndiGo
Find Deal
Wed, Aug 27 - Wed, Sep 3
Turkish Airlines Logo
10:15 am - 11:45 amSIN-IAD
37h 30m1 stop
Turkish Airlines Logo
1:30 pm - 5:55 pmIAD-SIN
40h 25m1 stop
$1,029Turkish Airlines
Find Deal
Sun, Oct 5 - Sat, Oct 18
Turkish Airlines Logo
10:15 am - 11:45 amSIN-IAD
37h 30m1 stop
Turkish Airlines Logo
1:30 pm - 5:55 pmIAD-SIN
40h 25m1 stop
$1,034Turkish Airlines
Find Deal
Sun, Oct 5 - Sat, Oct 18

United Airlines flights from Singapore to Washington, D.C.

Our best United Airlines deals on Singapore to Washington, D.C. flight tickets
United Airlines
Jul 2
SIN11:05 amSingapore Changi
40h 40m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
Jul 5
IAD1:20 pmWashington, D.C. Dulles Intl
28h 55m
2 stops
SIN6:15 amSingapore Changi
United Airlines
Jul 1
SIN11:05 amSingapore Changi
35h 00m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Jul 13
IAD1:20 pmWashington, D.C. Dulles Intl
28h 55m
2 stops
SIN6:15 amSingapore Changi
United Airlines
Jul 14
SIN8:40 pmSingapore Changi
27h 15m
2 stops
IAD11:55 amWashington, D.C. Dulles Intl
Jul 21
IAD12:15 pmWashington, D.C. Dulles Intl
30h 25m
1 stop
SIN6:40 amSingapore Changi

Air Canada flights from Singapore to Washington, D.C.

Our best Air Canada deals on Singapore to Washington, D.C. flight tickets
Air Canada
Oct 5
SIN11:55 pmSingapore Changi
33h 10m
2 stops
IAD9:05 pmWashington, D.C. Dulles Intl
Oct 19
IAD5:37 pmWashington, D.C. Dulles Intl
43h 08m
2 stops
SIN12:45 amSingapore Changi
Air Canada
Oct 5
SIN11:55 pmSingapore Changi
33h 10m
2 stops
IAD9:05 pmWashington, D.C. Dulles Intl
Oct 18
IAD5:37 pmWashington, D.C. Dulles Intl
49h 28m
2 stops
SIN7:05 amSingapore Changi
Air Canada
Oct 5
SIN11:55 pmSingapore Changi
33h 10m
2 stops
IAD9:05 pmWashington, D.C. Dulles Intl
Oct 19
IAD5:37 pmWashington, D.C. Dulles Intl
43h 08m
2 stops
SIN12:45 amSingapore Changi

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Singapore to Washington, D.C.

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 month to fly to Washington, D.C.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Singapore, with most prices found around $1,093. If you’re not able to fly to Washington, D.C. in September, then May is your next best option. Flight prices from Singapore to Washington, D.C. during May average around $1,106.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Singapore is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,114. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Singapore to Washington, D.C. for around $1,472.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Singapore to Washington, D.C. when you can find flight prices for as low as $1,059. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $1,410. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $1,324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Singapore for as low as $1,124 on momondo.

Can stopping save me money on Singapore to Washington, D.C. flights?

You could potentially save up to 4% on your flight if you consider stops on a Singapore to Washington, D.C. flight.

How have Singapore to Washington, D.C. flight prices changed over time?

As of June 2025, prices for Singapore to Washington, D.C. flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Singapore to Washington, D.C.

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

Cheap Singapore to Washington, D.C. (SIN to WAS) flight deals and tips

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

Best Price Found

$450

Fastest flight time

21h 13m

Direct flights

None

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Singapore in the past 72 hours is $450. The best round-trip flight deal from Singapore to Washington, D.C. found on momondo in the last 72 hours is $740.
The fastest flight from Singapore to Washington, D.C. takes 21h 13m
There are no direct flights from Singapore to Washington, D.C.. Popular non-direct routes for this connection are Singapore Changi Airport - Washington, D.C. Reagan-National Airport, Singapore Changi Airport - Baltimore/Washington Airport and Singapore Changi Airport - Washington, D.C. Dulles Intl Airport.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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

    There are 9651.2 mi between Singapore Changi and Washington, D.C.. In terms of flight time, this usually takes a little over 22h 07m.

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

    Prices for flights from Singapore Changi Airport to Washington, D.C. are updated daily.

  • How many operators does momondo search for flights from Singapore Changi Airport to Washington, D.C.?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Singapore Changi Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. 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 Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Best airlines flying from Singapore to Washington, D.C.

Compare and see reviews for airlines that fly from Singapore to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Qatar AirwaysPriceFrom $1,333Free CancellationRating
7.4
3,591 reviews
Search Qatar Airways flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Laurel
Woodbridge
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Gaithersburg
Towson
Rockville
Fairfax
Glen Burnie
Linthicum Heights
Reston
Springfield
Hyattsville

Why use momondo?

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

Finding the right flight to Washington, D.C. from Singapore 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 Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Singapore with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Singapore to Washington, D.C..

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

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


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1 adult
Mon 6/23
Mon 6/30

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.