SIN - IAD

$719 Find Cheap Flights from Singapore to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Dulles Intl departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$926
Typical prices: $1,435-$1,176
ANA
Tue 9/1Wed 9/30
SIN - IAD • 1 stop
Cheapest one-way
$719
Typical prices: $976-$1,077
Multiple Airlines
Fri 7/10
SIN - IAD • 2 stops
Top airlines
ANA
Cheapest • from $926 (round-trip)
Air China
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Singapore and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Istanbul (IST)
Cheapest • Avg $1,136 (round-trip)
San Francisco (SFO)
Shortest trip • 22h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 36% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Singapore to Dulles Intl (SIN-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Singapore to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Singapore to Dulles Intl

Tue, Sep 1 - Wed, Sep 30
ANA Logo
10:00 pm - 10:05 am
SIN
-
IAD
24h 05m
1 stop
ANA Logo
3:30 pm - 6:40 am
IAD
-
SIN
27h 10m
2 stops
$926ANA
Tue, Sep 1 - Wed, Sep 30
ANA Logo
11:05 am - 10:05 am
SIN
-
IAD
35h 00m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$928ANA
Tue, Sep 1 - Wed, Sep 30
ANA Logo
10:00 pm - 10:05 am
SIN
-
IAD
24h 05m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$929ANA
Tue, Sep 1 - Wed, Sep 30
ANA Logo
11:05 am - 10:05 am
SIN
-
IAD
35h 00m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$930ANA
Fri, Oct 23 - Tue, Feb 23
Multiple Airlines Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
Multiple Airlines Logo
8:05 pm - 8:45 am
IAD
-
SIN
23h 40m
1 stop
$1,131Multiple Airlines
Fri, Oct 23 - Tue, Feb 23
Multiple Airlines Logo
3:20 pm - 7:28 am
SIN
-
IAD
28h 08m
2 stops
Multiple Airlines Logo
5:38 pm - 12:05 pm
IAD
-
SIN
29h 27m
2 stops
$1,202Multiple Airlines
Fri, Oct 23 - Tue, Feb 23
Multiple Airlines Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
Multiple Airlines Logo
8:05 pm - 12:55 pm
IAD
-
SIN
27h 50m
2 stops
$1,204Multiple Airlines
Fri, May 15 - Sat, May 23
Multiple Airlines Logo
1:30 am - 7:34 am
SIN
-
IAD
42h 04m
2 stops
Multiple Airlines Logo
9:00 pm - 4:15 pm
IAD
-
SIN
31h 15m
1 stop
$1,209Multiple Airlines
Fri, May 15 - Sat, May 23
Multiple Airlines Logo
1:30 am - 7:34 am
SIN
-
IAD
42h 04m
2 stops
Multiple Airlines Logo
9:00 pm - 4:15 pm
IAD
-
SIN
31h 15m
1 stop
$1,210Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
1:30 am - 7:34 am
SIN
-
IAD
42h 04m
2 stops
Multiple Airlines Logo
9:00 pm - 4:15 pm
IAD
-
SIN
31h 15m
1 stop
$1,211Multiple Airlines
Booking Insights

KAYAK's insights & trends for Singapore to Dulles Intl flights

Get data-powered insights and trends into flights from Singapore to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Singapore to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Singapore to Washington, D.C. Dulles Intl Airport departing in September.

What is the cheapest month to fly from Singapore to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Singapore to Washington, D.C. Dulles Intl Airport is February, where tickets cost $924 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is $3,546 and $1,540 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$719
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Singapore to Washington Dulles Airport

When to book flights from Singapore to Dulles Intl

Are your dates flexible? Find out the best times to travel from Singapore to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Singapore to Washington Dulles Airport flights

  • What is the cheapest flight from Singapore to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Singapore to Washington, D.C. Dulles Intl Airport was $719 for a one-way ticket and $926 for a round-trip.

  • Do I need a passport to fly between Singapore and Washington Dulles Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Singapore and on arrival in Washington Dulles Airport.

  • Which aircraft models fly most regularly from Singapore to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Singapore and Washington Dulles Airport.

  • How does KAYAK find such low prices on flights from Singapore to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Singapore to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Singapore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Singapore to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Singapore with another airline. Booking your flights between Singapore and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Singapore to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Air ChinaOverall score based on 148 reviews
6.4Entertainment
8.0Crew
7.1Food
7.7Boarding
7.1Comfort
Airline reviews

The meals were not the greatest and lacking of appetite but everything else was spot on

8.0 ExcellentJeff, Apr 2026
PVG - YVR
Read more Air China reviews

The meals were not the greatest and lacking of appetite but everything else was spot on

Overall, excellent: check-in, boarding, service, and food. The Business Class seating is a little less private and spacious than the world's premier airlines, but still very good for a long haul flight.

On time. Friendly and helpful flight attendants. The plane was clean. Having a wine available would have been nice.

Your staff was exceptional. Could teach the other airlines-rules on etiquette, and service. Excellent landings on flights, carried out by your pilots. Only complaint is long delay on return flight in Beijing, onto Vancouver.

Worst than I expected, crew was not attentive, meal was as disgusting , they didn’t even drink selections as they would to other passengers. I felt discriminated

cannot get seat information for LAX to IAH when check in in XI,AN

UA is ok. But check in was a very bad experience

I hate that you cannot check in online and when you are at the airport, there aren't any aisle seats left. Also, they could work a little on subtitles for their movies (not everyone is a native English speaker).

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Everything you need to know for your flight from Singapore to Dulles Intl

Information on your arrival and departure airports

Singapore (SIN)
Dulles Intl (IAD)