S$ 539 Find Cheap Flights from Washington Dulles Airport to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Singapore departing on 18-8. 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

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Best Singapore Flight Deals from Dulles Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore1 stopS$ 1,007
Singapore
Singapore1 stopS$ 1,007

Cheap Flights from Dulles Intl to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl to Singapore 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 return flight deals from Dulles Intl to Singapore

Wed, 27 Aug - Mon, 8 Sep
Air India Logo
12:50 - 19:30IAD-SIN
42h 40m1 stop
Air India Logo
23:00 - 07:40SIN-IAD
44h 40m1 stop
S$ 1,007Air India
Find Deal
Mon, 25 Aug - Mon, 1 Sep
Air India Logo
12:50 - 21:45IAD-SIN
44h 55m1 stop
Air India Logo
23:00 - 07:40SIN-IAD
44h 40m1 stop
S$ 1,025Air India
Find Deal
Thu, 11 Sep - Tue, 30 Sep
Etihad Airways Logo
22:05 - 09:40IAD-SIN
23h 35m1 stop
Etihad Airways Logo
21:10 - 16:10SIN-IAD
31h 00m1 stop
S$ 1,074Etihad Airways
Find Deal
Fri, 22 Aug - Sun, 7 Sep
Etihad Airways Logo
22:05 - 09:40IAD-SIN
23h 35m1 stop
Etihad Airways Logo
21:10 - 16:10SIN-IAD
31h 00m1 stop
S$ 1,088Etihad Airways
Find Deal
Wed, 10 Sep - Thu, 25 Sep
 Logo
22:05 - 09:40IAD-SIN
23h 35m1 stop
 Logo
23:25 - 19:30SIN-IAD
32h 05m1 stop
S$ 1,105
Find Deal
Wed, 10 Sep - Thu, 25 Sep
 Logo
13:30 - 17:20IAD-SIN
39h 50m2 stops
 Logo
23:25 - 19:30SIN-IAD
32h 05m1 stop
S$ 1,107
Find Deal
Wed, 10 Sep - Thu, 25 Sep
IndiGo Logo
13:30 - 17:20IAD-SIN
39h 50m2 stops
IndiGo Logo
19:45 - 19:45SIN-IAD
36h 00m2 stops
S$ 1,114IndiGo
Find Deal
Wed, 10 Sep - Thu, 25 Sep
IndiGo Logo
21:40 - 17:20IAD-SIN
31h 40m2 stops
IndiGo Logo
19:45 - 19:45SIN-IAD
36h 00m2 stops
S$ 1,119IndiGo
Find Deal
Wed, 12 Nov - Tue, 18 Nov
Air Canada Logo
09:55 - 07:00IAD-SIN
32h 05m2 stops
Air Canada Logo
08:50 - 20:59SIN-IAD
25h 09m2 stops
S$ 1,163Air Canada
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Air Canada Logo
09:00 - 07:55IAD-SIN
33h 55m2 stops
Air Canada Logo
10:00 - 20:59SIN-IAD
23h 59m2 stops
S$ 1,172Air Canada
Find Deal
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore, 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 Washington, D.C. Dulles Intl Airport to Singapore is November, when tickets cost S$ 1,268 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,301 and S$ 1,927 respectively.

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

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington Dulles Airport to Singapore, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Singapore, Friday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Singapore, 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 on a flight from Washington, D.C. Dulles Intl Airport to Singapore, you should book around 3 weeks before departure, which saves you about 11% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.


Good to know

Low seasonJuly
Cheapest flightS$ 539
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly (49% more expensive on average)
Flight from Washington Dulles Airport to Singapore

FAQs - booking Singapore flights

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

    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 Washington Dulles Airport to Singapore.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Washington Dulles Airport to Singapore 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 from Washington Dulles Airport to Singapore?

    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 from Washington Dulles Airport to Singapore 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 Singapore?

    The cheapest time of day to fly to Singapore is generally at night, when retur flights cost S$ 1,157 on average. The most expensive time of day to fly to Singapore is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 1,564.

Reviews of the top airline flying from Dulles Intl to Singapore

 
Need help choosing which airline to fly with from Dulles Intl to Singapore? 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 3609 reviews
7.3Food
7.9Crew
7.5Boarding
7.4Entertainment
7.4Comfort
Airline reviews

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

2.0 MediocreJeyi, Jul 2025PHL - DOH
Read more Qatar Airways reviews

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

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.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

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

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