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Chiang Mai

$997+ Cheap flights from Reagan-National (DCA) to Chiang Mai (CNX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — CNX
Jul 15 — Jul 221
Wed 7/15
Wed 7/22
1 adult, Economy
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Cheap flight deals from Reagan-National to Chiang Mai

Cheapest flights from Reagan-National to Chiang Mai
Explore the most affordable flight options available from Reagan-National to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.

This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:59 pm
DCA
-
CNX
2 stops52h 26m
Multiple Airlines
Thu 9/311:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 6/12$1,375
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:59 pm
DCA
-
CNX
2 stops52h 26m
Multiple Airlines
Thu 9/311:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 6/12$1,407
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:30 am
DCA
-
CNX
2 stops37h 55m
Multiple Airlines
Sat 8/2911:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 6/12$1,443
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:59 pm
DCA
-
CNX
2 stops52h 26m
Multiple Airlines
Thu 8/611:35 am
CNX
-
DCA
2 stops39h 41m
Multiple Airlines
Deal found 6/13$1,682
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:59 pm
DCA
-
CNX
2 stops28h 26m
Multiple Airlines
Thu 8/611:35 am
CNX
-
DCA
2 stops39h 41m
Multiple Airlines
Deal found 6/13$1,686
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:59 pm
DCA
-
CNX
2 stops52h 26m
Multiple Airlines
Wed 8/511:35 am
CNX
-
DCA
2 stops43h 25m
Multiple Airlines
Deal found 6/13$1,761
This Korean Air deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:00 pm
DCA
-
CNX
2 stops40h 45m
Korean Air
Wed 8/59:45 pm
CNX
-
DCA
2 stops28h 08m
Korean Air
Deal found 6/13$1,857

Find flight deals from Reagan-National to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Chiang Mai (CNX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,337
(FlightHub)

One-way from

$997
(FlightHub)

Popular in

May

Cheapest in

January

Average price

$1,438
Provider with most accurate pricing for Washington, D.C. Reagan-National-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Chiang Mai flights.
Search Deals
From Washington, D.C. Reagan-National to Chiang Mai
Search Deals
One-way flight from Washington, D.C. Reagan-National to Chiang Mai
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Chiang Mai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 8/8

6:59 pm-10:25 am

2 stops52h 26m

Chiang Mai

Thu 9/3

11:35 am-8:00 pm

2 stops43h 25m

$1,375

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 8/23

9:30 am-10:25 am

2 stops37h 55m

Chiang Mai

Sat 8/29

11:35 am-8:00 pm

2 stops43h 25m

$1,443

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 7/22

5:00 pm-8:45 pm

2 stops40h 45m

Chiang Mai

Wed 8/5

9:45 pm-2:53 pm

2 stops28h 08m

$1,857

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 7/12

6:00 am-8:45 pm

2 stops27h 45m

Chiang Mai

Sat 7/18

9:45 pm-4:59 pm

2 stops54h 14m

$1,871

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 7/26

11:00 am-9:45 am

3 stops35h 45m

Chiang Mai

Sun 8/2

11:55 pm-10:31 pm

2 stops33h 36m

$2,109

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Thu 7/23

6:00 am-8:45 pm

2 stops27h 45m

Chiang Mai

Sat 8/8

9:45 pm-12:45 pm

2 stops26h 00m

$2,312
Quickest round-trip

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 7/22

8:00 am-8:45 pm

2 stops25h 45m

Chiang Mai

Sun 8/9

9:45 pm-12:45 pm

2 stops26h 00m

$2,406

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Tue 7/21

6:59 am-8:45 pm

2 stops26h 46m

Chiang Mai

Sun 8/9

9:45 pm-12:45 pm

2 stops26h 00m

$2,406
Cheapest one-way

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Wed 6/24

8:00 am-9:45 am

3 stops38h 45m

$1,113

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sat 6/27

7:35 pm-8:45 pm

2 stops62h 10m

$1,128

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 resultsSorted by cheapest first
1
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Compare providers for flights from Reagan-National to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Chiang Mai in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Chiang Mai from Washington, D.C. Reagan-National?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Reagan-National to Chiang Mai. 0 airlines have flights to Chiang Mai from Washington, D.C. Reagan-National on a regular basis. Booking flights from Washington, D.C. Reagan-National to Chiang Mai should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Reagan-National per day.

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

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Chiang Mai in 40h 45m. Fly via Korean Air to get the fastest option. There are 8441 mi between Washington, D.C. Reagan-National Airport and Chiang Mai.

  • Can I find deals for flights from Reagan-National to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Chiang Mai.

  • Can I find deals for business class flights from Reagan-National to Chiang Mai?

    Yes. Cheapflights offers flight deals from Reagan-National to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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