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 July , August 2026

25 Jul - 27 Aug $ 1,375.00
PDX
Portland
Alaska Airlines
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
11 Jul - 05 Aug $ 1,503.00
PDX
Portland
Air Canada
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Air Canada
2 STOPS
PDX
Portland
Pick dates
11 Jul - 06 Aug $ 5,096.00
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

11 Jul - 01 Aug $ 1,533.00
PDX
Portland
Air Canada
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Air Canada
2 STOPS
PDX
Portland
Pick dates
12 Jul - 01 Aug $ 1,685.00
PDX
Portland
Air Canada
2 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Air Canada
2 STOPS
PDX
Portland
Pick dates
11 Jul - 31 Jul $ 4,968.00
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

7:15 AM - 8:05 PM
China Eastern Airlines
2 Stops
26h 5m
PDX - CNX
$ 666
Kiwi
Pick dates
5:30 PM - 1:20 PM
Starlux Airlines
2 Stops
32h 50m
PDX - CNX
$ 807
Kiwi
Pick dates
9:30 PM - 7:40 AM
EVA Air
2 Stops
22h 55m
PDX - CNX
$ 884
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.