Earn point on your loyalty program!arrow arc left

Cheap flights from Portland (PDX) 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 Portland (PDX) to Chiang Mai (CNX)

How to find the cheapest flight from Portland (PDX) 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 Portland (PDX) 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 Portland (PDX) 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 Portland to Chiang Mai in February , March 2026

24 Feb - 06 Mar $ 1,040.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
09 Feb - 04 Mar $ 1,411.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
13 Feb - 05 Mar $ 8,788.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates

Last minute flights from Portland to Chiang Mai

17 Feb - 01 Mar $ 1,323.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
3 STOPS
PDX
Portland
Pick dates
09 Feb - 01 Mar $ 1,654.00
PDX
Portland
Starlux Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Starlux Airlines
2 STOPS
PDX
Portland
Pick dates
13 Feb - 28 Feb $ 8,562.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates

One-way flights to Chiang Mai from Portland

5:50 PM - 7:20 AM
EVA Air
2 Stops
25h 45m
PDX - CNX
$ 567
Kiwi
Pick dates
4:51 PM - 7:20 AM
EVA Air
2 Stops
26h 44m
PDX - CNX
$ 759
Kiwi
Pick dates
8:30 AM - 6:45 PM
Korean Air
2 Stops
23h 25m
PDX - CNX
$ 4,900
Kiwi
Pick dates

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