DCA - CNX

$583 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 4/6. 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
$1,132
Multiple Airlines
Mon 4/6Mon 4/13
DCA - CNX • 2 stops
Cheapest one-way
$597
Multiple Airlines
Mon 4/6
DCA - CNX • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Reagan-National and Chiang Mai. You'll need at least 2 connections.
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We hope you love your trip to Chiang Mai!
Flight Deals
Useful Info
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, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
6:41 pm - 10:25 am
DCA
-
CNX
28h 44m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,132Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
6:41 pm - 10:25 am
DCA
-
CNX
28h 44m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,150Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
5:00 pm - 10:25 am
DCA
-
CNX
30h 25m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,165Multiple Airlines
Sun, Aug 9 - Thu, Sep 3
Multiple Airlines Logo
9:59 am - 4:20 pm
DCA
-
CNX
43h 21m
2 stops
Multiple Airlines Logo
5:20 pm - 8:00 pm
CNX
-
DCA
37h 40m
2 stops
$1,179Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
6:41 pm - 10:25 am
DCA
-
CNX
28h 44m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,183Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
5:00 pm - 10:25 am
DCA
-
CNX
30h 25m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,185Multiple Airlines
Sat, Aug 8 - Thu, Sep 3
Multiple Airlines Logo
6:59 pm - 10:25 am
DCA
-
CNX
28h 26m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,191Multiple Airlines
Thu, Apr 30 - Mon, May 18
EVA Air Logo
9:59 am - 10:25 am
DCA
-
CNX
37h 26m
2 stops
EVA Air Logo
11:35 am - 8:06 pm
CNX
-
DCA
43h 31m
2 stops
$1,223EVA Air
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
9:59 am - 10:20 am
DCA
-
CNX
37h 21m
2 stops
Multiple Airlines Logo
11:20 am - 8:00 pm
CNX
-
DCA
43h 40m
2 stops
$1,229Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
9:59 am - 10:25 am
DCA
-
CNX
61h 26m
2 stops
Multiple Airlines Logo
11:35 am - 8:00 pm
CNX
-
DCA
43h 25m
2 stops
$1,413Multiple Airlines
Useful Info

Good to know

Cheapest flight$597
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 $597 for a one-way ticket and $1,132 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 8239 reviews
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

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)