$403 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 9/22. 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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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.
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.
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Flight Deals

Cheap Flights from Dulles Intl to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$851
Manila
Manila1 stop$917
Singapore
Singapore1 stop$955
Denpasar
Denpasar1 stop$1,046
Hanoi
Hanoi1 stop$959
Phuket City
Phuket City2 stops$931
Cebu City
Cebu City2 stops$951
Da Nang
Da Nang2 stops$933
Phnom Penh
Phnom Penh1 stop$1,199
Chiang Mai
Chiang Mai2 stops$941
Angeles City
Angeles City2 stops$1,001
Ko Samui
Ko Samui2 stops$1,031
Vientiane
Vientiane2 stops$1,343
Boracay
Boracay2 stops$1,709
Davao City
Davao City2 stops$1,116
Krabi
Krabi2 stops$1,006
Bangkok
Bangkok1 stop$851
Manila
Manila1 stop$917
Singapore
Singapore1 stop$955
Denpasar
Denpasar1 stop$1,046
Hanoi
Hanoi1 stop$959
Phuket City
Phuket City2 stops$931
Cebu City
Cebu City2 stops$951
Da Nang
Da Nang2 stops$933
Phnom Penh
Phnom Penh1 stop$1,199
Chiang Mai
Chiang Mai2 stops$941
Angeles City
Angeles City2 stops$1,001
Ko Samui
Ko Samui2 stops$1,031
Vientiane
Vientiane2 stops$1,343
Boracay
Boracay2 stops$1,709
Davao City
Davao City2 stops$1,116
Krabi
Krabi2 stops$1,006

Book Cheap Dulles Intl to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Dulles Intl to Southeast Asia

Wed, Oct 8 - Fri, Oct 17
Etihad Airways Logo
10:05 pm - 6:50 pmIAD-BKK
33h 45m1 stop
Etihad Airways Logo
7:20 am - 4:10 pmBKK-IAD
43h 50m2 stops
$851Etihad Airways
Find Deal
Wed, Oct 15 - Sat, Oct 25
Etihad Airways Logo
10:05 pm - 11:00 amIAD-BKK
49h 55m2 stops
Etihad Airways Logo
7:20 am - 4:50 pmBKK-IAD
44h 30m2 stops
$852Etihad Airways
Find Deal
Mon, Dec 1 - Fri, Jan 30
Turkish Airlines Logo
9:10 pm - 8:40 amIAD-BKK
23h 30m1 stop
Turkish Airlines Logo
10:10 am - 7:15 pmBKK-IAD
45h 05m1 stop
$861Turkish Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Turkish Airlines Logo
1:30 pm - 4:20 amIAD-BKK
26h 50m1 stop
Turkish Airlines Logo
10:10 am - 11:45 amBKK-IAD
37h 35m1 stop
$878Turkish Airlines
Find Deal
Thu, Feb 19 - Wed, Mar 18
ANA Logo
11:05 am - 9:50 pmIAD-SGN
22h 45m1 stop
ANA Logo
7:30 am - 7:35 amSGN-IAD
35h 05m2 stops
$933ANA
Find Deal
Sat, Feb 21 - Wed, Mar 18
ANA Logo
11:05 am - 9:50 pmIAD-SGN
22h 45m1 stop
ANA Logo
7:30 am - 7:35 amSGN-IAD
35h 05m2 stops
$946ANA
Find Deal
Tue, Oct 28 - Tue, Nov 4
Korean Air Logo
10:11 am - 9:45 pmIAD-HAN
24h 34m2 stops
Korean Air Logo
11:05 pm - 9:50 amHAN-IAD
22h 45m1 stop
$965Korean Air
Find Deal
Sun, Nov 16 - Tue, Nov 25
Korean Air Logo
11:50 am - 9:45 pmIAD-HAN
21h 55m1 stop
Korean Air Logo
11:05 pm - 9:50 amHAN-IAD
22h 45m1 stop
$977Korean Air
Find Deal
Mon, Nov 3 - Tue, Dec 2
Emirates Logo
10:30 am - 9:55 pmIAD-KUL
22h 25m1 stop
Emirates Logo
10:15 am - 8:10 amKUL-IAD
34h 55m1 stop
$1,022Emirates
Find Deal
Mon, Nov 3 - Mon, Dec 1
Emirates Logo
10:30 am - 9:55 pmIAD-KUL
22h 25m1 stop
Emirates Logo
1:25 am - 8:10 amKUL-IAD
43h 45m1 stop
$1,078Emirates
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 layover from Washington, D.C. Dulles Intl Airport to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $460, prices are generally cheapest when you fly direct.

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 September, when tickets cost $999 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,494 and $1,477 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.

Your flight ticket price will generally be cheaper if you fly to Southeast Asia on a Saturday and more expensive on a Friday. On your return trip to Washington Dulles Airport, you should consider flying back on a Sunday, and avoid Saturdays for better deals.

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 2 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$403
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 9% 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 travelers 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 round-trip 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 in the evening, when round-trip flights cost $1,113 on average. Morning departures are around 21% more expensive than evening flights, 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 $1,342.

Reviews of the top 5 airlines serving 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.
8.4
Korean AirOverall score based on 1139 reviews
8.2Entertainment
8.7Crew
8.3Comfort
8.1Food
8.5Boarding
Airline reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

8.0 ExcellentMatt, Aug 2025ATL - EWR
Read more Korean Air reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

This flight was a superior flight in all regards. Extremely pleasant experience.

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

Luckily I just tried to sleep. But the entertainment system was awkward to operate. I hate all this stuff with apps and adding it to your phone and all. It is a nuisance. I would prefer a good magazine or newspaper in the pocket in front of me or available.

Upgrade the comfort, food and attendants. Also we arrived in Houston in the morning. The meal they served two hours before our arrival was a dinner entree. It would have been a lot nicer and much more appropriate to have had breakfast.

Every leg of the flight was late causing us to miss our flight to Okinawa and have to take the next flight out.

One of the best 14 hour flights I've ever had. Crew was friendly throughout which can be difficult on longer flights. The crew being kind and respectful is very important for me. Plane felt clean and I was able to get some well needed uninterrupted sleep. I put them slightly above Cathay Pacific as far as cleanliness the only down side was a lack of entertainment selections, but hey I am an American taking a trip on a Japanese airline so I cannot complain. Thank you ANA and the Tokyo airport all very friendly. Will see you soon

Poor. We weren’t able to check in online (for several hours until we gave up) for no apparent reasons although our passports were loaded successfully. When we were at the airport check-in, a rep helped us at the kiosk but she disregarded the KTN provided to her so we had to come back for it after being questioned by the TSA person…

ANA gave me an amazing experience. They are very good with customer service.

I lost my lock from my luggage, I don’t know someone took something from my bag.

Except for the uncleaned tray, and the delay in serving food for our section (which may have been due to the location of our row) everything else was good. The crew were very professional and responded to our requests promptly throughout the flight. We as a family were not disappointed by Emirates.

It was great, a little more leg room would have been better particularly since we were in premium economy

The boarding process was smooth and the stewardesses were nice. Some delays with drinks at the end of the flight, but no issues.

Thay crew was so nice.Air hostess il ham was so nice.my mom was little scray with airplan turbulence she help us alot.

Seat 💺 was all the way on last row. Food was okay .

Charged for internet that never really worked. The food selection was just ok.

Boarding, seats, entertainment and service were all great. Food was great except for the fact that there were too many sweet items.

The entire crew went above and beyond. This was our first flight with our 3 month old, and they were accommodating and friendly. The crew is attentive and marks a HIGE difference to the regular runs with Avianca and LATAM.

Business class on this plane was adequate, service, amenities, swag, and crew was amazing!

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

I was not given basinett seat.The connecting flight was missed due to airline fault i was not accomodated for hotel.Drinks were normt served frewuently.Never travelling again on tirkish airlines.I always travel wiyh family by turkish airline but no more.zero stars

The crew were very hospitable and pleasant. The food was pretty good. Unfortunately, there was a flight delay of more than 2 hours. We're not sure why but it appeared to be outside the control of Turkish Airlines.

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

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