DCA - CNX

$567 Find Cheap Flights from Reagan Washington National Airport to Chiang Mai

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 Chiang Mai departing on 1/13. 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 Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Chiang Mai, 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 Chiang Mai, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,012
China Airlines
Mon 2/23Mon 3/2
DCA - CNX • 2 stops
Cheapest one-way
$557
Multiple Airlines
Tue 1/13
DCA - CNX • 2 stops
Top airlines
China Airlines
Cheapest • from $1,012 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Chiang Mai (DCA-CNX)

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

Mon, Feb 23 - Mon, Mar 2
China Airlines Logo
9:59 am - 10:25 am
DCA
-
CNX
36h 26m2 stops
China Airlines Logo
5:35 pm - 4:06 pm
CNX
-
DCA
34h 31m2 stops
$1,012China Airlines
Wed, Jan 21 - Tue, Feb 3
Korean Air Logo
6:59 am - 10:55 pm
DCA
-
CNX
27h 56m2 stops
Korean Air Logo
12:15 am - 1:53 pm
CNX
-
DCA
25h 38m2 stops
$1,035Korean Air
Wed, Jan 21 - Tue, Feb 3
Korean Air Logo
6:59 am - 10:55 pm
DCA
-
CNX
27h 56m2 stops
Korean Air Logo
12:15 am - 4:29 pm
CNX
-
DCA
52h 14m2 stops
$1,041Korean Air
Wed, Jan 21 - Tue, Feb 3
Delta Logo
6:00 am - 10:55 pm
DCA
-
CNX
28h 55m2 stops
Delta Logo
12:15 am - 10:11 pm
CNX
-
DCA
33h 56m2 stops
$1,080Delta
Mon, Mar 2 - Mon, Apr 13
Multiple Airlines Logo
9:59 am - 10:35 am
DCA
-
CNX
36h 36m2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m2 stops
$1,087Multiple Airlines
Mon, Mar 2 - Mon, Apr 13
Multiple Airlines Logo
5:00 pm - 10:25 am
DCA
-
CNX
29h 25m2 stops
Multiple Airlines Logo
11:20 am - 9:59 pm
CNX
-
DCA
45h 39m2 stops
$1,094Multiple Airlines
Sun, Mar 1 - Sun, Mar 8
Multiple Airlines Logo
5:00 pm - 10:35 am
DCA
-
CNX
29h 35m2 stops
Multiple Airlines Logo
11:50 am - 7:05 pm
CNX
-
DCA
43h 15m2 stops
$1,115Multiple Airlines
Thu, Feb 5 - Tue, Feb 10
Multiple Airlines Logo
9:59 am - 10:35 am
DCA
-
CNX
60h 36m2 stops
Multiple Airlines Logo
11:50 am - 8:00 pm
CNX
-
DCA
44h 10m2 stops
$1,125Multiple Airlines
Mon, Apr 27 - Wed, May 20
Multiple Airlines Logo
6:59 pm - 10:25 am
DCA
-
CNX
28h 26m2 stops
Multiple Airlines Logo
11:35 am - 9:59 pm
CNX
-
DCA
45h 24m2 stops
$1,137Multiple Airlines
Sat, Feb 28 - Sun, Mar 8
Multiple Airlines Logo
9:59 am - 10:35 am
DCA
-
CNX
36h 36m2 stops
Multiple Airlines Logo
11:50 am - 7:05 pm
CNX
-
DCA
43h 15m2 stops
$1,144Multiple Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Chiang Mai flights

Get data-powered insights and trends into flights from Reagan-National to Chiang Mai to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Reagan Washington National Airport to Chiang Mai?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Reagan Washington National Airport to Chiang Mai were found on China Airlines ($1,012) and Korean Air ($1,035).

Which airlines fly non-stop between Washington, D.C. Reagan-National Airport and Chiang Mai?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Reagan-National Airport to Chiang Mai.

There is just one airline that flies from Washington, D.C. Reagan-National Airport to Chiang Mai direct and that is Delta. The best round-trip deal found from Delta for the route is $1,068.

Find deals

Good to know

Cheapest flight$557
Flight from Reagan Washington National Airport to Chiang Mai

When to book flights from Reagan-National to Chiang Mai

Are your dates flexible? Find out the best times to travel from Reagan-National to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Chiang Mai flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Chiang Mai?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Chiang Mai was $557 for a one-way ticket and $1,012 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Chiang Mai?

    A passport is required to fly from Reagan Washington National Airport to Chiang Mai.

  • Which airports will I be using when flying from Reagan Washington National Airport to Chiang Mai?

    Reagan Washington National Airport and Chiang Mai are both served by 1 main airport. You will leave Reagan Washington National Airport from Washington, D.C. Reagan-National and will be arriving at Chiang Mai.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Chiang Mai?

    SkyTeam is the only airline alliance operating flights between Reagan Washington National Airport and Chiang Mai.

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

    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 Chiang Mai.

  • 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 Chiang Mai?

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

    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 to Chiang Mai with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and CNX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Chiang Mai?

    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 to Chiang Mai from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Reagan-National to Chiang Mai

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Chiang Mai. 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 Chiang Mai? 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.
7.9
DeltaOverall score based on 8038 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

8.0 ExcellentG, Jan 2026
FLL - ATL
Read more Delta reviews

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

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

Everything you need to know for your flight from Reagan-National to Chiang Mai

Information on your arrival and departure airports

Reagan Washington National Airport (DCA)
Chiang Mai (CNX)