SIN - IAD

$544 Find Cheap Flights from Singapore to Washington Dulles Airport - Compare and Save

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 10/26. 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$923
Typical prices: $1,445-$1,247
ANA
Fri 9/4Mon 9/21
SIN - IAD • 1 stop
Cheapest one-way
$544
Typical prices: $637-$921
Air China
Mon 10/26
SIN - IAD • 1 stop
Top airlines
Cheapest • from $923 (round-trip)
Best reviews • 8.5 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
Cheapest • Avg $1,136 (round-trip)
Shortest trip • 22h 55m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 38% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Fri, Sep 4 - Mon, Sep 21
ANA Logo
10:00 pm - 10:05 am
SIN
-
IAD
24h 05m
1 stop
ANA Logo
3:40 pm - 6:40 am
IAD
-
SIN
27h 00m
2 stops
$923ANA
Wed, Nov 4 - Fri, Nov 6
Air China Logo
5:50 pm - 6:30 pm
SIN
-
IAD
61h 40m
2 stops
Air China Logo
10:00 pm - 9:55 pm
IAD
-
SIN
34h 55m
1 stop
$944Air China
Thu, Jul 2 - Tue, Jul 21
Air China Logo
11:25 pm - 7:30 pm
SIN
-
IAD
32h 05m
1 stop
Air China Logo
11:00 pm - 6:50 am
IAD
-
SIN
43h 50m
1 stop
$1,028Air China
Wed, Nov 4 - Fri, Nov 6
Air China Logo
5:50 pm - 6:30 pm
SIN
-
IAD
61h 40m
2 stops
Air China Logo
10:00 pm - 4:15 pm
IAD
-
SIN
53h 15m
2 stops
$1,065Air China
Mon, Sep 21 - Fri, Oct 16
Air China Logo
11:25 pm - 7:30 pm
SIN
-
IAD
32h 05m
1 stop
Air China Logo
11:00 pm - 9:55 pm
IAD
-
SIN
34h 55m
1 stop
$1,092Air China
Thu, Jul 2 - Tue, Jul 21
Air China Logo
1:30 pm - 7:30 pm
SIN
-
IAD
42h 00m
2 stops
Air China Logo
11:00 pm - 6:50 am
IAD
-
SIN
43h 50m
1 stop
$1,125Air China
Fri, Sep 11 - Fri, Oct 16
American Airlines Logo
1:55 am - 8:24 pm
SIN
-
IAD
30h 29m
2 stops
American Airlines Logo
6:24 am - 12:20 am
IAD
-
SIN
29h 56m
2 stops
$1,163American Airlines
Mon, Jul 6 - Wed, Oct 14
Air Canada Logo
10:00 pm - 11:11 am
SIN
-
IAD
49h 11m
2 stops
Air Canada Logo
5:40 pm - 5:15 am
IAD
-
SIN
47h 35m
2 stops
$1,202Air Canada
Thu, Aug 27 - Mon, Sep 7
Air Canada Logo
6:15 am - 3:01 pm
SIN
-
IAD
44h 46m
2 stops
Air Canada Logo
9:07 am - 5:15 am
IAD
-
SIN
56h 08m
2 stops
$1,214Air Canada
Fri, Oct 23 - Sun, Oct 25
Multiple Airlines Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
Multiple Airlines Logo
11:40 am - 9:15 pm
IAD
-
SIN
21h 35m
1 stop
$1,217Multiple 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 June, where the average cost of round-trip tickets is $3,546 and $1,544 respectively.

Good to know

Low seasonFebruary
Cheapest flight$544
Best time to beat the crowds with an average 38% drop in price.
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 5 days, the lowest price for a flight from Singapore to Washington, D.C. Dulles Intl Airport was $546 for a one-way ticket and $923 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.

  • Which is the best airline for flights from Singapore to Washington, D.C., EVA Air or United Airlines?

    The two airlines most popular with KAYAK users for flights from Singapore to Washington, D.C. are EVA Air and United Airlines. With an average price for the route of $1,489 and an overall rating of 8.5, EVA Air is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,584 and an overall rating of 7.4.

  • 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 3 airlines serving 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.
8.5
EVA AirOverall score based on 1474 reviews
8.3Comfort
8.1Food
8.4Boarding
8.7Crew
8.0Entertainment
Airline reviews

Great food on both legs and fast customer service from the stewardesses....

10.0 ExcellentTony, Jun 2026
LAX - CRK
Read more EVA Air reviews

Great food on both legs and fast customer service from the stewardesses....

Other than spotty internet, great servic, comfortable and smooth flight!

Crew was good. Sometimes food was eh. The spaghetti is gross for me. First time i got food, they didn’t provide utensils so i ate with my hands. I was hungry. They gave it to me 20 mins later when a crew member came by. I would fly with them again. Nobody is perfect

Eva air was fine - Trip.com via KAYAK sold my family access to a “VIP” lounge fo a layover in Taipei… i’m please look at my pictures. It was a scam, Trip.com knows it and they are perpetrating a fraud through your web site.

My flight was amazing smooth and the attendants were so friendly and nice

Organized boarding process, superb food, lovely crew, even arrived early!

Crew are excellent. Food was good generally. Seats are small and there isn’t much leg room. Overhead bins are very small.

What could have been better, was we were delayed from takeoff for two hours. Initially we were informed that we were delayed for refueling. Then we taxied out on the tarmac, then just waited there for a long time, with no explanation of the delay. Were we just waiting on takeoff clearance or was there some other reason for the delay? The pilot, nor none of the crew informed us passengers. That was not good customer service. That needs to be improved, whenever a delay, inform the passengers for the reason.

More seat space More bathrooms Charging outlets Plane was old

This flight was long and I am so thankful I had a seat in the back of the plane. As I usually must get up and stretch every hour . The crew were probably the most friendly I have flown with. Thanks and I will book again with Eva air. Food was ok too.

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Very friendly and attentive flight attendants, good food service. Seat was comfortable. However, the in flight electronics were poor. The screen froze repeatedly; the controller died; the headphones are a hit or miss; the wifi wasn't usable. Very scarce communication before the flight (no email reminder). Almost impossible to understand in-flight communications (audio was very poor).

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.

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

Information on your arrival and departure airports