S$ 354 Find Cheap Flights from Washington Dulles Airport to Southeast Asia

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 Southeast Asia departing on 5-9. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Southeast Asia, 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 Washington, D.C. to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Dulles Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore1 stopS$ 1,115
Singapore
Singapore1 stopS$ 1,115

Cheap Flights from Dulles Intl to Southeast Asia

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

Thu, 4 Sep - Mon, 22 Sep
Etihad Airways Logo
22:05 - 09:40IAD-SIN
23h 35m1 stop
Etihad Airways Logo
21:10 - 16:10SIN-IAD
31h 00m1 stop
S$ 1,115Etihad Airways
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$ 1,150Etihad Airways
Find Deal
Thu, 4 Sep - Fri, 19 Sep
Etihad Airways Logo
22:05 - 09:40IAD-SIN
23h 35m1 stop
Etihad Airways Logo
21:10 - 16:10SIN-IAD
31h 00m1 stop
S$ 1,152Etihad Airways
Find Deal
Wed, 19 Nov - Fri, 28 Nov
Air Canada Logo
09:00 - 07:00IAD-SIN
33h 00m2 stops
Air Canada Logo
08:50 - 20:59SIN-IAD
25h 09m2 stops
S$ 1,183Air Canada
Find Deal
Wed, 12 Nov - Tue, 18 Nov
Air Canada Logo
09:45 - 07:00IAD-SIN
32h 15m2 stops
Air Canada Logo
09:20 - 20:59SIN-IAD
24h 39m2 stops
S$ 1,207Air Canada
Find Deal
Thu, 11 Sep - Tue, 30 Sep
IndiGo Logo
21:40 - 17:45IAD-SIN
32h 05m2 stops
IndiGo Logo
19:45 - 19:45SIN-IAD
36h 00m2 stops
S$ 1,237IndiGo
Find Deal
Thu, 11 Sep - Thu, 2 Oct
IndiGo Logo
21:40 - 17:45IAD-SIN
32h 05m2 stops
IndiGo Logo
19:45 - 19:45SIN-IAD
36h 00m2 stops
S$ 1,241IndiGo
Find Deal
Sun, 14 Sep - Fri, 19 Sep
 Logo
21:40 - 17:45IAD-SIN
32h 05m2 stops
 Logo
09:00 - 19:30SIN-IAD
22h 30m1 stop
S$ 1,242
Find Deal
Thu, 11 Sep - Thu, 2 Oct
 Logo
21:40 - 17:45IAD-SIN
32h 05m2 stops
 Logo
23:25 - 19:30SIN-IAD
32h 05m1 stop
S$ 1,265
Find Deal
Thu, 4 Sep - Wed, 17 Sep
Korean Air Logo
13:15 - 23:40IAD-SIN
22h 25m1 stop
Korean Air Logo
01:10 - 10:55SIN-IAD
21h 45m1 stop
S$ 1,298Korean Air
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Southeast Asia flights

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

Can I save money by flying with a stopover from Washington, D.C. Dulles Intl Airport to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at S$ 229 on average.

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

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 Southeast Asia, 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 Southeast Asia 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$ 2,302 and S$ 1,921 respectively.

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

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

If you are looking for a flight deal from Washington Dulles Airport to Southeast Asia, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Southeast Asia, 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 Southeast Asia?

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 Southeast Asia, 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 the flight from Washington, D.C. Dulles Intl Airport to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonMay
Cheapest flightS$ 354
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Washington Dulles Airport to Singapore

FAQs - booking Southeast Asia flights

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

    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 Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    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 Southeast Asia 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 Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost S$ 1,157 on average. The most expensive time of day to fly to Southeast Asia 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 Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Southeast Asia. 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 Dulles Intl to Southeast Asia? 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 3610 reviews
7.4Entertainment
7.4Comfort
7.3Food
7.5Boarding
7.9Crew
Airline reviews

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

8.0 ExcellentAnonymous, Aug 2025ATL - DOH
Read more Qatar Airways reviews

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

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.

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