S$ 613 Find Cheap Flights from Washington Dulles Airport to Southeast Asia – 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 Dulles Intl to Southeast Asia departing on 23-8. 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, 0 bags

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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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

Sun, 23 Aug - Mon, 7 Sep
Multiple Airlines Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Multiple Airlines Logo
17:55 - 19:30
SIN
-
IAD
37h 35m
1 stop
S$ 1,304Multiple Airlines
Sun, 23 Aug - Mon, 7 Sep
Multiple Airlines Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Multiple Airlines Logo
23:25 - 19:30
SIN
-
IAD
32h 05m
1 stop
S$ 1,310Multiple Airlines
Wed, 9 Sep - Wed, 23 Sep
Etihad Airways Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
21:00 - 09:45
SIN
-
IAD
24h 45m
1 stop
S$ 1,349Etihad Airways
Mon, 17 Aug - Wed, 2 Sep
Air Canada Logo
17:40 - 05:15
IAD
-
SIN
47h 35m
2 stops
Air Canada Logo
06:15 - 11:13
SIN
-
IAD
40h 58m
2 stops
S$ 1,359Air Canada
Sun, 27 Sep - Mon, 23 Nov
Etihad Airways Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
19:25 - 09:05
SIN
-
IAD
26h 40m
1 stop
S$ 1,372Etihad Airways
Mon, 17 Aug - Wed, 2 Sep
Turkish Airlines Logo
21:45 - 17:55
IAD
-
SIN
32h 10m
1 stop
Turkish Airlines Logo
11:10 - 11:35
SIN
-
IAD
36h 25m
1 stop
S$ 1,376Turkish Airlines
Mon, 17 Aug - Wed, 2 Sep
Korean Air Logo
08:28 - 23:55
IAD
-
SIN
27h 27m
2 stops
Korean Air Logo
22:00 - 11:05
SIN
-
IAD
25h 05m
1 stop
S$ 1,380Korean Air
Mon, 17 Aug - Wed, 2 Sep
Etihad Airways Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
21:00 - 09:45
SIN
-
IAD
24h 45m
1 stop
S$ 1,386Etihad Airways
Wed, 9 Sep - Wed, 23 Sep
Etihad Airways Logo
15:10 - 09:40
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
21:00 - 09:45
SIN
-
IAD
24h 45m
1 stop
S$ 1,388Etihad Airways
Fri, 21 Aug - Mon, 31 Aug
Multiple Airlines Logo
13:30 - 19:15
IAD
-
SIN
41h 45m
1 stop
Multiple Airlines Logo
23:25 - 19:30
SIN
-
IAD
32h 05m
1 stop
S$ 1,389Multiple Airlines
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$ 1,008 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 January, when tickets cost S$ 1,371 (return) on average. On the other hand, the most expensive months are May and August, when the average cost of return tickets is S$ 6,191 and S$ 2,712 respectively.

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 a flight from Washington, D.C. Dulles Intl Airport to Southeast Asia, you should book around 3 weeks before departure, which saves you about 24% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonMay
Cheapest flightS$ 613
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (42% more expensive 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.

Reviews of the top airlines 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.
7.3
Qatar AirwaysOverall score based on 3737 reviews
7.5Boarding
7.9Crew
7.3Entertainment
7.3Comfort
7.3Food
Airline reviews

Really good food and service. Qatar Airways is again and again provided an exceptional experience.

10.0 ExcellentAnonymous, May 2026
JFK - BCN
Read more Qatar Airways reviews

Really good food and service. Qatar Airways is again and again provided an exceptional experience.

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bag check in at DC was slow. Boarding process was slow more due to customers unfamiliar with how to board properly. Food and service was excellent!

The hindu meal food did not taste good. Also the seats were not comfortable as compare to other airlines

The first and longest leg, Washington to Doha, was in a 777 that was very loud. This was an older aircraft. The second leg, Doha to Delhi, was in a much newer aircraft, an A350 and was very substantially quieter. The service was good on both, though as always, the crew leaves you trapped with your meal tray for a really long time. Additionally, the flight crew seemed inordinately afraid of turbulence, keeping the seat belt sign on for long stretches when there was barely noticeable turbulence.

A nightmare. Scheduled flight delayed 2 hours then cancelled because pilot timed out . Unable to find another pilot. Really?! Weather certainly a factor, but JetBlue seemed totally unprepared for the chaos that ensued when flight routes were cancelled. More cancelled flights, finally many of us who had been bumped from other flights were allowed to board a Boston bound plane around 3:00am, delay after delay, sat on tarmac for another half hour while pilot dealt with weight distribution issues (?), arrived in Boston 4:30. Crew were wonderful- same attendants all day and night and they were exhausted. Fortunately for me and my son that Boston was our final destination, not so lucky for many who missed connecting flights.

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight was on time and smooth. Customer service was decent

They forced me to check my hand luggage at the gate.

Still hasn’t left. Why are you asking how it was?

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

One hour delayed departure resulted in problems with planned ground transportation at my destination.

Plane is old and seats are worn. Add to it the plane was dirty. No plugs for laptop.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports