Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SIN - IAD

$396 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 9/14. 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
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Washington Dulles 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
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
5:15 pm - 3:45 pmSIN-IAD
82h 30m1 stop
7:10 pm - 3:45 pmIAD-SIN
56h 35m1 stop
$929SAUDIA
Find Deal
Sat, Sep 14 - Sun, Sep 22
5:15 pm - 3:45 pmSIN-IAD
34h 30m1 stop
7:10 pm - 3:45 pmIAD-SIN
32h 35m1 stop
$1,026SAUDIA
Find Deal
Sat, Aug 3 - Sat, Aug 10
8:05 am - 11:10 pmSIN-IAD
27h 05m2 stops
6:49 am - 6:45 amIAD-SIN
34h 56m2 stops
$1,101American Airlines
Find Deal
Mon, Sep 30 - Mon, Nov 18
11:05 am - 3:35 pmSIN-IAD
40h 30m1 stop
8:25 am - 8:00 amIAD-SIN
34h 35m2 stops
$1,105United Airlines
Find Deal
Mon, Sep 30 - Mon, Nov 18
9:50 pm - 4:30 pmSIN-IAD
30h 40m2 stops
6:55 am - 12:20 amIAD-SIN
29h 25m2 stops
$1,111American Airlines
Find Deal
Sat, Sep 14 - Sun, Sep 22
8:45 am - 11:59 pmSIN-IAD
27h 14m2 stops
12:25 pm - 6:40 amIAD-SIN
30h 15m1 stop
$1,112United Airlines
Find Deal
Sat, Sep 14 - Sun, Sep 22
8:45 pm - 4:18 pmSIN-IAD
31h 33m1 stop
9:00 am - 5:45 amIAD-SIN
31h 45m1 stop
$1,117Singapore Airlines
Find Deal
Mon, Sep 30 - Mon, Nov 18
7:50 pm - 9:30 pmSIN-IAD
37h 40m1 stop
9:00 am - 5:45 amIAD-SIN
31h 45m1 stop
$1,130Singapore Airlines
Find Deal
Thu, Oct 3 - Mon, Nov 18
11:20 pm - 8:30 pmSIN-IAD
33h 10m1 stop
10:45 pm - 4:05 pmIAD-SIN
29h 20m1 stop
$1,453British Airways
Find Deal
Thu, Aug 1 - Sat, Aug 10
10:35 pm - 8:30 pmSIN-IAD
33h 55m1 stop
10:45 pm - 4:05 pmIAD-SIN
29h 20m1 stop
$1,576British Airways
Find Deal
Wed, Jul 31 - Mon, Aug 12

Flights from Singapore to Dulles Intl - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Singapore to Washington Dulles Airport?

The average price of all flights from Singapore to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Washington Dulles Airport on a Tuesday and more expensive on a Monday. On your return trip to Singapore, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

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 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 November, where tickets cost $1,098 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $1,655 and $1,654 respectively.

How far in advance should I book a flight from Singapore to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Singapore to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Singapore to Washington, D.C. Dulles Intl Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 77 days before departure.

Which airlines provide the cheapest flights from Singapore to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Washington Dulles Airport from Singapore were found on SAUDIA ($396) and Turkish Airlines ($672), and the lowest round-trip tickets were found on SAUDIA ($929) and American Airlines ($1,101).

Good to know

Low season

February

High season

December

Cheapest flight

$396
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 21% increase 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 3 days, the lowest price for a flight from Singapore to Washington, D.C. Dulles Intl Airport was $396 for a one-way ticket and $929 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?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Singapore and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Singapore to Washington, D.C. are United Airlines and British Airways. With an average price for the route of $1,348 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,389 and an overall rating of 6.7.

  • 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.

See more FAQs

Top airlines 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.
7.4
United AirlinesOverall score based on 10000 reviews
8.1Crew
7.1Entertainment
6.7Food
7.7Boarding
7.2Comfort
Airline reviews

United is my favorite and I always try to fly United. I feel like this crew didn’t mesh well together.

6.0 GoodElida, Jun 2024ATH - IAD
Read more about United Airlines reviews

United is my favorite and I always try to fly United. I feel like this crew didn’t mesh well together.

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was late due to mechanical, had to spend night in hotel. Experience disembarking plane was poor, United did little for passengers except what they were required to do by law.

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Every host and pilot were very professional. My next flight would be upgraded from economy to the next group.

I asked for a window seat and when I got on the plane 24A did not have a window so was very not happy, but good and entertainment was good and the staff was very good, so the only complaint was the seating.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

My seat was in a good row. In our section it was the first row. But it was difficult tooperate seat entertainment features > table, screen, even though I often fly.

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

There was nothing to like besides the crew. The comfort of the airplane was poor (seat did not work properly and it was not comfortable). The “entertainment” system did not work! On a flight that last nearly eight hours, (which is advertised as having excellent entertainment options), that is unacceptable! Passengers should have been given free WiFi for the flight. The food served on the flight was below school lunch grade food. (With one exception, the ice cream snack). The chicken entree was tough and nearly impossible to cut and eat. The “pizza” served later in the flight was worse. The chicken pizza had a dry crust and the “toppings” were equally not enjoyable. The amount of chicken and cheese were almost non existent. Overall not a flight we would want to repeat!!

There was a problem in the luggage because there were not porters

2-1/2 hours on tarmac after arrival to DFW, lost connection to London, 3 hours wait for customer assistance, stayed on our own account in DFW, no replacement flight for 5 days, had to cancel the entire travel and return to Monterrey today.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

Book cheap flights from Singapore to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Singapore to Washington, D.C. found on KAYAK in the last 72 hours.
9/14Sat
1 stopSAUDIA
34h 30mSIN-IAD
$396
10/21Mon
1 stopSAUDIA
34h 30mSIN-IAD
$488
7/7Sun
1 stopTurkish Airlines
40h 30mSIN-IAD
$672
8/7Wed
1 stopSAUDIA
34h 30mSIN-IAD
$710
11/19Tue
2 stops
36h 16mSIN-IAD
$743
7/7Sun
3 stops
35h 45mSIN-IAD
$783
8/6Tue
1 stopUnited Airlines
24h 28mSIN-IAD
$1,035
8/7Wed
2 stopsUnited Airlines
26h 52mSIN-IAD
$1,039
8/9Fri
1 stopBritish Airways
29h 05mSIN-IAD
$1,157
7/21Sun
1 stopTurkish Airlines
32h 30mSIN-IAD
$2,795

Search by stops

Search by airline

Search by price

Singapore - Washington Dulles Airport Flights

Departure:

Singapore (SIN)Singapore

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Singapore

Cabin classes: