Earn point on your loyalty program!arrow arc left

Cheap flights from Washington (DCA) to Chiang Mai (CNX)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)

How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Washington to Chiang Mai in December 2025 , January 2026

31 Dec - 28 Jan $ 1,475.00
DCA
Washington
Hawaiian Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Hawaiian Airlines
3 STOPS
DCA
Washington
Pick dates
25 Dec - 08 Jan $ 2,335.00
DCA
Washington
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
DCA
Washington
Pick dates
26 Dec - 02 Jan $ 5,135.00
DCA
Washington
Korean Air
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Korean Air
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to Chiang Mai

28 Dec - 01 Jan $ 2,364.00
DCA
Washington
Frontier Airlines
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Frontier Airlines
3 STOPS
DCA
Washington
Pick dates
25 Dec - 01 Jan $ 2,708.00
DCA
Washington
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
DCA
Washington
Pick dates
26 Dec - 01 Jan $ 5,019.00
DCA
Washington
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
DCA
Washington
Pick dates

One-way flights to Chiang Mai from Washington

6:00 AM - 8:15 AM
Thai Vietjet
3 Stops
40h 20m
DCA - CNX
$ 884
Kiwi
Pick dates
8:00 AM - 7:20 AM
EVA Air
2 Stops
38h 35m
DCA - CNX
$ 1,134
Kiwi
Pick dates
8:20 AM - 6:45 PM
Korean Air
2 Stops
26h 35m
DCA - CNX
$ 2,250
Kiwi
Pick dates

How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Chiang Mai (CNX)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.