$538 Find Cheap Flights from Reagan Washington National Airport to Thailand

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 Thailand departing on 8/31. 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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Best Thailand Flight Deals from Reagan-National

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Phuket City
Phuket City2 stops$1,147
Chiang Mai
Chiang Mai2 stops$1,202
Ko Samui
Ko Samui2 stops$1,700
Krabi
Krabi2 stops$2,214
Phuket City
Phuket City2 stops$1,147
Chiang Mai
Chiang Mai2 stops$1,202
Ko Samui
Ko Samui2 stops$1,700
Krabi
Krabi2 stops$2,214

Cheap Flight Deals from Reagan-National to Thailand (DCA-TH0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Thailand 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 Thailand

Tue, Aug 19 - Tue, Aug 26
Cathay Pacific Logo
12:31 pm - 11:50 pmDCA-BKK
24h 19m2 stops
Cathay Pacific Logo
11:00 am - 1:09 amBKK-DCA
25h 09m2 stops
$995Cathay Pacific
Find Deal
Wed, Aug 27 - Wed, Sep 17
Cathay Pacific Logo
12:31 pm - 11:30 amDCA-BKK
35h 59m2 stops
Cathay Pacific Logo
5:30 pm - 9:03 amBKK-DCA
26h 33m2 stops
$1,009Cathay Pacific
Find Deal
Tue, Aug 19 - Tue, Aug 26
Singapore Airlines Logo
9:59 am - 11:00 amDCA-BKK
38h 01m2 stops
Singapore Airlines Logo
3:30 pm - 8:59 pmBKK-DCA
40h 29m2 stops
$1,022Singapore Airlines
Find Deal
Mon, Aug 25 - Mon, Sep 8
Cathay Pacific Logo
5:20 pm - 10:00 amDCA-BKK
29h 40m2 stops
Cathay Pacific Logo
7:00 pm - 3:59 pmBKK-DCA
31h 59m2 stops
$1,028Cathay Pacific
Find Deal
Fri, Sep 12 - Tue, Sep 23
Singapore Airlines Logo
8:59 am - 8:15 amDCA-BKK
36h 16m2 stops
Singapore Airlines Logo
9:20 am - 8:59 pmBKK-DCA
46h 39m2 stops
$1,123Singapore Airlines
Find Deal
Wed, Oct 1 - Sat, Nov 8
Qatar Airways Logo
1:45 pm - 6:15 amDCA-BKK
29h 30m2 stops
Qatar Airways Logo
2:00 am - 7:18 pmBKK-DCA
29h 18m2 stops
$1,241Qatar Airways
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Thu, Oct 2 - Sat, Oct 4
Qatar Airways Logo
1:45 pm - 6:55 amDCA-BKK
30h 10m2 stops
Qatar Airways Logo
2:30 am - 6:44 pmBKK-DCA
27h 14m2 stops
$1,287Qatar Airways
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Mon, Sep 8 - Wed, Oct 1
Air Canada Logo
6:59 am - 4:35 amDCA-BKK
34h 36m2 stops
Air Canada Logo
7:00 am - 9:51 pmBKK-DCA
25h 51m2 stops
$1,327Air Canada
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Fri, Sep 12 - Tue, Sep 30
Air Canada Logo
8:40 pm - 4:35 amDCA-BKK
44h 55m2 stops
Air Canada Logo
9:35 pm - 10:34 pmBKK-DCA
35h 59m2 stops
$1,365Air Canada
Find Deal
Wed, Jun 25 - Mon, Jun 30
American Airlines Logo
6:59 pm - 7:50 amDCA-HKT
25h 51m2 stops
American Airlines Logo
9:20 am - 7:50 amHKT-DCA
33h 30m2 stops
$2,384American Airlines
Find Deal
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KAYAK's insights & trends for Reagan-National to Thailand flights

Get data-powered insights and trends into flights from Reagan-National to Thailand 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. Reagan-National Airport to Thailand?

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 Thailand, 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 Thailand is September, when tickets cost $1,065 (return) on average. On the other hand, the most expensive months are April and July, when the average cost of round-trip tickets is $1,804 and $1,785 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Thailand?

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

If you are looking for a flight deal from Reagan Washington National Airport to Thailand, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Thailand, Monday is the cheapest day to fly and Wednesday is the most expensive.


Good to know

Low seasonFebruary
High seasonJanuary
Cheapest flight$538
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Reagan Washington National Airport to Bangkok

FAQs - booking Thailand flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Thailand?

    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 Thailand.

  • 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 Thailand?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to Thailand 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 Thailand?

    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 Thailand 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 Thailand?

    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 Thailand 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 Thailand?

    The cheapest time of day to fly to Thailand is generally at night, when round-trip flights cost $1,203 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Thailand is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,680.

Top 4 airlines serving from Reagan-National to Thailand

Need help choosing which airline to fly with from Reagan-National to Thailand? 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.
7.5
Cathay PacificOverall score based on 858 reviews
7.7Entertainment
7.6Comfort
8.0Crew
7.9Boarding
7.2Food
Airline reviews

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

8.0 ExcellentPavan, Apr 2025HKG - SFO
Read more Cathay Pacific reviews

Special request meals are really below average. Vegetarian options are very limited if you didn't prebook.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Everything was fine and I have no complaints or things to note.

Overall, it was ok. However, the food was very sub-par.

The economy seats are much indeed roomier. Meals needs improvement.

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

Horrible airline. Missed my baggage and don’t want to reimburse for the basis items. Pathetic customer service

Food was hood for airline food with good poftion and variety in meals. Frequency of beverage service was very low and amount of soda with meals was inadequate.

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.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Update.us on flight information in a more timely manner. Don’t say we are boarding on time ten minutes before the boarding time when the aircraft isn’t arriving for another forty minutes.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

Was a normal flight but it was delayed, and there wasn't an explanation.

In flight connectivity (via T-Mobile) was often not working.

Pitch was very small. Knees were on the seat back in front of me.

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

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