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 November , December 2025

24 Nov - 04 Dec $ 1,018.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
16 Nov - 04 Dec $ 1,166.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
16 Nov - 09 Dec $ 4,237.00
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

25 Nov - 30 Nov $ 1,467.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
3 STOPS
PDX
Portland
Pick dates
20 Nov - 30 Nov $ 2,502.00
PDX
Portland
Hawaiian Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Hawaiian Airlines
2 STOPS
PDX
Portland
Pick dates
16 Nov - 30 Nov $ 3,357.00
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

7:31 PM - 7:20 AM
China Airlines
2 Stops
23h 54m
PDX - CNX
$ 529
Kiwi
Pick dates
8:45 PM - 7:20 AM
China Airlines
2 Stops
22h 40m
PDX - CNX
$ 593
Kiwi
Pick dates
8:02 PM - 7:20 AM
China Airlines
2 Stops
23h 23m
PDX - CNX
$ 593
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.