$414 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 to Dulles Intl departing on 7/23. 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.
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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 for flights 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 for flights to Washington, D.C., as well as popular online travel agencies
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Cheap Flights from Singapore to Dulles Intl

 
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.

Recent round-trip flight deals from Singapore to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Singapore to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Turkish Airlines Logo
10:15 am - 11:45 amSIN-IAD
37h 30m1 stop
Turkish Airlines Logo
9:40 pm - 8:45 amIAD-SIN
23h 05m1 stop
$987Turkish Airlines
Find Deal
Tue, Jun 10 - Tue, Jun 17
Air Canada Logo
9:10 am - 9:00 pmSIN-IAD
47h 50m2 stops
Air Canada Logo
5:22 pm - 7:05 amIAD-SIN
49h 43m2 stops
$1,000Air Canada
Find Deal
Sun, Oct 5 - Sat, Oct 18
 Logo
1:45 pm - 7:36 amSIN-IAD
29h 51m2 stops
 Logo
7:59 pm - 12:35 pmIAD-SIN
28h 36m2 stops
$1,005
Find Deal
Mon, Jun 2 - Mon, Jun 30
Air India Logo
11:00 pm - 7:40 amSIN-IAD
44h 40m1 stop
Air India Logo
11:00 am - 9:45 pmIAD-SIN
22h 45m1 stop
$1,030Air India
Find Deal
Mon, Jun 2 - Fri, Jun 20
 Logo
2:00 am - 6:50 amSIN-IAD
40h 50m2 stops
 Logo
6:09 pm - 12:35 pmIAD-SIN
30h 26m2 stops
$1,042
Find Deal
Thu, Jun 19 - Tue, Sep 9
Air India Logo
11:00 pm - 7:40 amSIN-IAD
44h 40m1 stop
Air India Logo
11:00 am - 9:45 pmIAD-SIN
22h 45m1 stop
$1,043Air India
Find Deal
Mon, Jun 16 - Fri, Jun 20
United Airlines Logo
11:05 am - 3:45 pmSIN-IAD
40h 40m1 stop
United Airlines Logo
10:19 pm - 6:25 pmIAD-SIN
32h 06m2 stops
$1,137United Airlines
Find Deal
Mon, Jun 16 - Thu, Jul 10
United Airlines Logo
11:05 am - 9:02 pmSIN-IAD
45h 57m2 stops
United Airlines Logo
3:00 pm - 6:15 amIAD-SIN
27h 15m1 stop
$1,239United Airlines
Find Deal
Tue, Jul 1 - Thu, Jul 17
Qatar Airways Logo
10:30 am - 8:40 amSIN-IAD
34h 10m1 stop
Qatar Airways Logo
11:00 am - 9:00 pmIAD-SIN
22h 00m1 stop
$1,322Qatar Airways
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Wed, May 14 - Thu, Aug 7
Qatar Airways Logo
10:30 am - 3:40 pmSIN-IAD
41h 10m1 stop
Qatar Airways Logo
11:00 am - 9:00 pmIAD-SIN
22h 00m1 stop
$1,347Qatar Airways
Find Deal
Mon, Jun 16 - Thu, Jul 10
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KAYAK's insights & trends for flights to Dulles Intl

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

What is the cheapest month to fly 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 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 to Washington, D.C. Dulles Intl Airport is March, where tickets cost $1,168 on average for return flights. On the other hand, the most expensive months are May and July, where the average cost of tickets from Singapore is $1,498 and $1,459 respectively. For one-way flights, the best month to travel is March with an average price of $1,168.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$414
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Singapore to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    Central Washington, D.C. is 22 miles away from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Saturday where round-trip tickets can be as cheap as $704. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $1,492 on average.

  • How does KAYAK find such low prices on flights 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 to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when round-trip flights cost $1,114 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,372.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 2,941 direct flights from within Singapore to Washington, D.C. Dulles Intl Airport. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Top airline flying from Singapore to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Singapore to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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
Qatar AirwaysOverall score based on 3563 reviews
7.4Comfort
7.5Boarding
7.4Entertainment
7.3Food
7.9Crew
Airline reviews

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

2.0 MediocreAnonymous, Feb 2025TUS - LAX
Read more Qatar Airways reviews

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Seats very small and unable to pre purchase internet or seat upgrades

I recently travelled with Qatar Airways from Doha to Dulles in the QSuite, and the experience was nothing short of exceptional. The QSuite truly feels like a First-Class experience, with its luxurious design, privacy, and comfort. The cabin crew, especially the lady in charge of the cabin, was remarkable—professional, attentive, and genuinely kind. The food was excellent, and the comfort of the seat was absolutely first-class, making the journey smooth and enjoyable. While the in-flight experience was outstanding, I have a few points of feedback. Firstly, the content available in the in-flight entertainment system could be expanded and upgraded to include a more diverse and updated collection. This would elevate the entertainment experience to match the premium standards of the QSuite. Secondly, regarding the Wi-Fi service: while QSuite passengers receive one hour of complimentary Wi-Fi, any additional usage requires a fee of USD 10. Considering the premium pricing of QSuite, it would be more fitting to include unlimited Wi-Fi as part of the experience, further enhancing the luxury offered to passengers. Lastly, I must highlight an issue with luggage handling. Unfortunately, my luggage did not make it through the transit, which was disappointing. While the ground crew assured me that it would be delivered to my home on the same day as it was arriving on the next flight, this promise was not fulfilled, and the delay added unnecessary inconvenience to an otherwise excellent experience. Overall, the QSuite experience was exceptional, but addressing these areas would further solidify Qatar Airways’ position as a leader in luxury air travel.

Seating is terrible, having seats so crammed is unacceptable for a 15-hour journey. I cannot stress enough how uncomfortable it is to sit in such an aircraft. Leg space is roomier in a domestic aircraft. I have not experienced this kind of crammy seating in domestic flights either in the US or other international airlines overseas.

Do not overbook flights and kick out confirmed ticketed passengers :-(

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

Do I need to repeat my complaints about my lost carry on bag?

Noice cancelling headphones would be better since it’s a crowded plane And kids behaviors are unavoidable

More facilities to transport to the gates......felt too much walking distance

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

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Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.

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