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Chiang Mai

$432+ Cheap flights from Reagan-National (DCA) to Chiang Mai (CNX)

DCA — CNX
Nov 6 — Nov 131
Fri 11/6
Fri 11/13
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 11/256:59 am -
2 stops27h 46m
Sat 12/512:20 am -
2 stops35h 22m
Deal found 10/5$925
Thu 11/267:00 am -
2 stops27h 45m
Sun 12/612:20 am -
2 stops29h 00m
Deal found 10/2$926
Tue 11/245:02 pm -
2 stops41h 43m
Tue 12/112:20 am -
2 stops34h 21m
Deal found 10/2$931
Wed 11/256:59 am -
2 stops27h 46m
Sat 12/512:20 am -
2 stops28h 00m
Deal found 10/6$970
Mon 11/169:30 pm -
2 stops37h 15m
Tue 12/112:20 am -
2 stops26h 39m
Deal found 10/2$1,000
Sat 11/147:00 am -
2 stops27h 45m
Wed 12/212:20 am -
2 stops35h 22m
Deal found 10/2$1,006
Sat 11/287:00 am -
2 stops27h 45m
Sun 12/612:20 am -
2 stops26h 39m
Deal found 10/4$1,047
Fri 11/276:05 am -
2 stops28h 40m
Mon 12/712:20 am -
2 stops24h 24m
Deal found 10/2$1,048
Sat 11/147:00 am -
2 stops27h 45m
Thu 12/312:20 am -
2 stops24h 37m
Deal found 10/2$1,056
Sun 11/298:40 pm -
2 stops38h 05m
Sun 12/612:20 am -
2 stops30h 19m
Deal found 10/5$1,072
Tue 11/176:05 am -
2 stops28h 40m
Sat 11/2112:20 am -
2 stops24h 20m
Deal found 10/2$1,073
Mon 11/165:02 pm -
2 stops41h 43m
Sat 11/2112:20 am -
2 stops34h 25m
Deal found 10/2$1,078

Find flight deals from Reagan-National to Chiang Mai

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$856
(Korean Air)

One-way from

$432
(Korean Air)

Popular in

May

Cheapest in

January

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 ($244 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 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.

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Price

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Quickest round-trip

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Fri 11/27

7:00 am-10:45 pm

2 stops27h 45m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$432

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Wed 11/11

6:05 am-10:45 pm

2 stops28h 40m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$432

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Tue 11/3

6:59 am-10:45 pm

2 stops27h 46m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$500

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Sun 11/1

8:50 pm-10:45 pm

2 stops37h 55m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$523

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Thu 11/5

5:05 pm-10:45 pm

2 stops41h 40m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$577

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Fri 11/27

6:05 am-10:45 pm

2 stops28h 40m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$588

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Sat 11/28

6:00 am-10:45 pm

2 stops28h 45m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$588

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Sun 11/29

5:02 pm-10:45 pm

2 stops41h 43m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$627

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Wed 11/18

8:40 pm-10:45 pm

2 stops38h 05m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$650

Washington, D.C.Chiang Mai

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

DCACNX

Washington, D.C. Reagan-National

Sun 11/29

8:40 pm-10:45 pm

2 stops38h 05m

Chiang Mai

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 21 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*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 27h 46m. 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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