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Chiang Mai

$635+ Cheap flights from Reagan-National (DCA) to Chiang Mai (CNX)

DCA — CNX
Nov 29 — Dec 61
Sun 11/29
Sun 12/6
1 adult, Economy
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Cheap flight deals from Reagan-National to Chiang Mai

Cheapest flights from Reagan-National to Chiang Mai

Wed 12/304:50 pm -
2 stops41h 55m
Tue 1/2612:20 am -
2 stops34h 05m
Deal found 10/27$1,184
Wed 11/256:05 am -
2 stops28h 40m
Sat 12/512:20 am -
2 stops52h 11m
Deal found 10/25$1,186
Wed 11/256:05 am -
2 stops28h 40m
Sat 12/512:20 am -
2 stops33h 23m
Deal found 10/25$1,313
Mon 11/239:30 am -
2 stops61h 05m
Thu 12/311:50 am -
2 stops44h 10m
Deal found 10/28$1,337
Sun 11/295:02 pm -
2 stops39h 38m
Sun 12/612:20 am -
2 stops24h 24m
Deal found 10/28$1,429
Fri 11/276:30 pm -
2 stops62h 10m
Thu 12/312:20 am -
2 stops34h 21m
Deal found 10/29$1,510
Wed 12/304:50 pm -
2 stops41h 55m
Sat 1/2312:20 am -
2 stops35h 22m
Deal found 10/29$1,513
Wed 11/259:30 am -
2 stops37h 05m
Sun 12/611:50 am -
2 stops44h 10m
Deal found 10/28$1,532

Find flight deals from Reagan-National to Chiang Mai

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$951
(Delta)

One-way from

$635
(Kiwi.com)

Popular in

May

Cheapest in

March

Average price

$1,215
Provider with most accurate pricing for Washington, D.C. Reagan-National-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Chiang Mai flights.
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From Washington, D.C. Reagan-National to Chiang Mai
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One-way flight from Washington, D.C. Reagan-National to Chiang Mai
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
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 Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Mon 1/4

9:30 am-8:10 pm

3 stops46h 40m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$704

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Tue 1/5

8:00 am-9:50 am

3 stops37h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$791

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Fri 11/27

9:30 am-9:50 pm

2 stops48h 20m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$838

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Fri 12/4

9:30 am-2:20 pm

2 stops64h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$893

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Thu 1/7

9:58 pm-10:45 pm

2 stops36h 47m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,024

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Sun 12/13

7:00 am-10:45 pm

2 stops27h 45m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,085

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Sun 12/13

5:02 pm-8:40 pm

2 stops39h 38m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,087
Quickest round-trip

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Sat 11/28

5:13 pm-6:25 am

2 stops25h 12m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$1,092

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Wed 11/25

6:05 am-10:45 pm

2 stops28h 40m

Chiang Mai

Sat 12/5

12:20 am-4:31 pm

2 stops52h 11m

$1,186

Washington, D.C.Chiang Mai

DCA Washington, D.C. Reagan-National - CNX Chiang Mai

DCACNX

Washington, D.C. Reagan-National

Fri 1/8

4:48 pm-10:45 pm

2 stops41h 57m

Chiang Mai

Sun 3/7

12:20 am-9:15 pm

2 stops32h 55m

$1,273

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 18 resultsSorted by cheapest first
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Compare providers for flights from Reagan-National to Chiang Mai

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice 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

Related info for your journey

  • 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 28h 40m. Fly via Korean Air or Delta to get the fastest option. There are 8441 mi between Washington, D.C. Reagan-National Airport and Chiang Mai. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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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