$511 Find Cheap Flights from Reagan Washington National 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 Reagan-National to Southeast Asia departing on 8/20. 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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Cheap Flights from Reagan-National to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Manila
Manila1 stop$1,166
Ho Chi Minh City
Ho Chi Minh City2 stops$1,075
Singapore
Singapore2 stops$1,104
Denpasar
Denpasar2 stops$1,193
Phuket City
Phuket City2 stops$1,121
Cebu City
Cebu City2 stops$1,076
Phnom Penh
Phnom Penh2 stops$1,232
Chiang Mai
Chiang Mai2 stops$1,341
Angeles City
Angeles City2 stops$1,117
Ko Samui
Ko Samui2 stops$1,674
Vientiane
Vientiane2 stops$1,799
Davao City
Davao City3 stops$1,118
Krabi
Krabi3 stops$1,833
Manila
Manila1 stop$1,166
Ho Chi Minh City
Ho Chi Minh City2 stops$1,075
Singapore
Singapore2 stops$1,104
Denpasar
Denpasar2 stops$1,193
Phuket City
Phuket City2 stops$1,121
Cebu City
Cebu City2 stops$1,076
Phnom Penh
Phnom Penh2 stops$1,232
Chiang Mai
Chiang Mai2 stops$1,341
Angeles City
Angeles City2 stops$1,117
Ko Samui
Ko Samui2 stops$1,674
Vientiane
Vientiane2 stops$1,799
Davao City
Davao City3 stops$1,118
Krabi
Krabi3 stops$1,833

Book Cheap Reagan-National 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 Reagan-National 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 Reagan-National to Southeast Asia

Mon, Aug 17 - Mon, Aug 31
Air Canada Logo
12:40 pm - 5:05 am
DCA
-
BKK
29h 25m
2 stops
Air Canada Logo
7:45 am - 9:48 pm
BKK
-
DCA
25h 03m
2 stops
$957Air Canada
Wed, Aug 19 - Thu, Sep 3
Air Canada Logo
12:40 pm - 5:05 am
DCA
-
BKK
29h 25m
2 stops
Air Canada Logo
7:45 am - 9:48 pm
BKK
-
DCA
25h 03m
2 stops
$962Air Canada
Thu, Aug 20 - Thu, Aug 27
Air Canada Logo
9:40 am - 9:55 pm
DCA
-
BKK
25h 15m
2 stops
Air Canada Logo
7:45 am - 9:48 pm
BKK
-
DCA
25h 03m
2 stops
$970Air Canada
Thu, Oct 29 - Thu, Nov 5
Delta Logo
9:32 am - 10:25 pm
DCA
-
SGN
25h 53m
2 stops
Delta Logo
8:00 am - 11:44 pm
SGN
-
DCA
27h 44m
2 stops
$1,075Delta
Wed, Sep 30 - Sat, Oct 10
Delta Logo
9:40 am - 11:15 pm
DCA
-
SGN
26h 35m
2 stops
Delta Logo
7:30 am - 11:45 pm
SGN
-
DCA
27h 15m
2 stops
$1,118Delta
Sun, Oct 11 - Fri, Oct 30
Philippine Airlines Logo
8:40 am - 10:35 pm
DCA
-
MNL
25h 55m
1 stop
Philippine Airlines Logo
11:10 am - 8:49 pm
MNL
-
DCA
21h 39m
1 stop
$1,167Philippine Airlines
Sun, Sep 20 - Sun, Oct 18
Cathay Pacific Logo
6:30 am - 10:55 pm
DCA
-
CGK
29h 25m
2 stops
Cathay Pacific Logo
2:20 pm - 7:59 pm
CGK
-
DCA
40h 39m
2 stops
$1,328Cathay Pacific
Tue, Nov 3 - Mon, Nov 16
Cathay Pacific Logo
11:59 am - 1:20 pm
DCA
-
CGK
37h 21m
2 stops
Cathay Pacific Logo
12:15 am - 10:48 pm
CGK
-
DCA
34h 33m
2 stops
$1,335Cathay Pacific
Tue, Oct 6 - Thu, Jan 28
Japan Airlines Logo
7:15 am - 11:55 pm
DCA
-
CGK
29h 40m
2 stops
Japan Airlines Logo
6:35 am - 10:37 pm
CGK
-
DCA
28h 02m
2 stops
$1,340Japan Airlines
Tue, Sep 29 - Thu, Oct 15
Japan Airlines Logo
8:26 am - 11:55 pm
DCA
-
CGK
28h 29m
2 stops
Japan Airlines Logo
9:50 pm - 11:06 pm
CGK
-
DCA
36h 16m
2 stops
$1,342Japan Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Southeast Asia flights

Get data-powered insights and trends into flights from Reagan-National 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. Reagan-National 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 $437, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Reagan-National 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. Reagan-National 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. Reagan-National Airport to Southeast Asia is January, when tickets cost $130 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,239 and $1,170 respectively.

Good to know

Low seasonMay
Cheapest flight$511
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly with an average 21% increase in price.
Flight from Reagan Washington National Airport to Singapore

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Reagan Washington National 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 Reagan Washington National Airport to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National 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 Reagan Washington National 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 5 airlines serving from Reagan-National 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 Reagan-National 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.
8.3
Japan AirlinesOverall score based on 1868 reviews
7.8Entertainment
8.7Crew
7.7Food
8.4Boarding
8.2Comfort
Airline reviews

Great. Better than average US carriers on overseas flights. Still room for improvement to rise up the average Asian and Middle East airlines.

8.0 ExcellentPeter, Jul 2026
DAY - DFW
Read more Japan Airlines reviews

Great. Better than average US carriers on overseas flights. Still room for improvement to rise up the average Asian and Middle East airlines.

Our flight was canceled, then they moved us to a different flight number yet we didn’t receive notifications timely. We had to find out the latest on our own / later AA sent a text with the updated info..

They didn't tell me they changed my flight. So I got confused on what happened to my flight.

It was just a short flight. The crew was nice. No major issue.

It was good overall. What I liked most was the restrooms. Compared to other airlines, the restrooms seem larger and look clean. The seats also look clean. The attendants are nice, except one time during the flight. I was sitting on aisle and a man sitting window. He asked an attendant for a snack. She told him to go ahead and get some snack from the section with food storage (I am not sure how it is called). So, I had to get up to let him get out from his seat. Why she did not bring him some snacks so that I would not have to move, I do not know... I was kind of surprised how inconsiderate the attendant was.

Overall, it was ok. The attendants are nice. It was a short flight, and I did not use the restrooms. What I was frustrated was the check-in. I was to fly from ATL to Chicago (American) then change to Japan Airline to go to Japan. I checked in, but I only got a boarding pass for the flight from Atlanta to Chicago. It said I would need to check in for a flight to Japan on Japan Airline site. When I tried to check in on JAL website, it said I need to check in American... It was very confusing.

JOKE of a company with the most Ridiculous policies. JAL is amazing, KAYAK/UNDERPRICER is the worst company I have ever dealt with, NEVER AGAIN

Absolutely WORST experience I’ve ever hard NEVER buy your airline ticket through a third party website, especially this one. Basically stole $1300 from me and has the WORST policy taking a WEEK to change a name on the reservation? A complete joke of a company.

There was a problem with the maintenance so missed the flight from las vegas to L.A and then L.A to Narita with japan airlines. They took care of the problem by rebooked with cathay pacific airways.

The best way to travel a long intercontinental flight. Staff are kind, polite and welcoming. Passengers experience a comfortable low stress environment, Customers feel they are well cared for by a highly trained and professional staff. I will shout from the rooftops when I get back home, "Japan Air is the way to go!"

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

So terrible. My flight was 4 hours delayed and we weren't notified til last second within an hour of boarding. WE had to sit on the plane for 4 hours. ridiculous.

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

The plane was dirty, the seats were torn and broken, the service was the most terrible ever, the bathroom dirty, they will not even serve water you had to request it, the meals were terrible, overall less than Zero, I will never fly Cathay Pacific again.

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

Was not able to board flight because boarding pass name did not match passport name and no one caught it.

Had a bad experience with crew member coming back Hong Kong to la the person next to me one of the passenger have taken video and picture of crew member the person that served meal young kid late 20' s 6 5'10 had attitude at his peak anything I asked for I don't know if it was bad day or racial I felt humiliated as people could see difference towards me I no problem with Cathy and my whole family never had one was very disappointed

Frequently flyer number should and could have been put on at the time of booking as I gave the number when booking.

Very attentive crews Flight was very smooth and safe Only little disappointment was the slight delay of departure (~30 minutes ) which rarely happen with CX flights

Not at all satisfactory. I had stomach upsets after taking food. Quality of Asian vegetarian meal was awful. Further there was no snacks/ fruits/ biscuits available as in between snacks.. only peanuts and pitzels.. except courteous staff rest of my experience was far from satisfactory

Staff was very courteous. Plane was clean and quite spacious even in the last rows. Veg food could have been better.

Later on, when there was no more bottled water, the water we received had a strong chlorine/disinfectant odor. On my flight from Hong Kong to Los Angeles, there was a male flight attendant who had a mean attitude throughout the whole trip, and he was very impatient during meal service “Furthermore, we purchased a Hong Kong SIM card as part of our flight package, but we received no instructions—neither by email nor SMS—on how to activate or use it. Consequently, we were unable to use the service at all. We request a full refund, as this appears to be a deceptive charge

The crew and the food were excellent. The plane was kept quite clean.

We sat on the hot plane for ours with very conflicting messages. Some (most?) of this may be due to the flight control staff, but we were also repeatedly getting "we are leaving"/"we are not" messages. It was very uncomfortable

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Never nice, United Express partners always do an amazing job.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

The flight was on time and the crew were great.

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

Boarding area is a mess. Lines not bounded and gate area too small. Food options (on this specific flight) were poor and you couldn’t pick part of it since it was like a mash of chicken and other unrecognisable stuff. Comfort of seats along with child noise made it difficult to get a good sleep. Last, the flight attendant that served my aisle was rude (others seemed fine) towards me and others.

Flight went very well. Cabin crew were all courteous and very helpful, always with smiles on their faces. Food was great. I always love heated nuts with wine. Flying business class with Philippine Airlines is always a pleasant experience.

Great food selection in lounge. Excellent bartender, friendly staff. Good service on the plane.

Check in process was excellent. Lounge needs improvement. Food not palatable and no good choices.

It was never explained why the departure flight was canceled and delayed for 1.5 hours. It would have been nice to stick with the original itinerary.

Many movies do not have captions, which would have been helpful when you have to live with the flight engine noise.

Everything was fantastic!!!! I can’t wait to fly home 😃!!!!!

I was glad that the plane was not totally full.

The flight was fantastic and the crew was absolutely excellent, but the entertainment system on the B777 was not working. That's a long time to spend with no electronics. The crew offered I-Pads but I had brought my own. I am only pointing this out because this is the second flight on Philippines Air where the entertainment system was down. FJM

The checking in agent tried to give me a different seat. She tried to give me an economy seat even though I had already checked in with a seat assigned and paid an extra $300 for those seats. She also separated our seating assignment. Very unprofessional and seriously a bad example for an agent. She was rude when I showed her my receipts and she made us wait more than 15 minutes before we were able to get the right boarding passes and correct seats (seats that we paid for in advance)!!!

Flight was delayed and caused us to miss our connection. American Airlines did nothing to compensate us and they lost 2 out of 4 of our checked baggage. They have not returned inquiries into customer service and have not offered us compensation. Terrible.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports