Earn point on your loyalty program!arrow arc left

Cheap flights from Portland (PDX) to Cairns (CNS)

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 Cairns (CNS)

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

Cheap flights from Portland to Cairns in September , October 2026

22 Sep - 08 Oct $ 1,417.00
PDX
Portland
Air Canada
2 STOPS
CNS
Cairns
CNS
Cairns
Air Canada
2 STOPS
PDX
Portland
Pick dates
15 Sep - 10 Oct $ 1,715.00
PDX
Portland
Alaska Airlines
2 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
15 Sep - 06 Oct $ 3,456.00
PDX
Portland
Air Canada
2 STOPS
CNS
Cairns
CNS
Cairns
Air Canada
2 STOPS
PDX
Portland
Pick dates

Last minute flights from Portland to Cairns

26 Sep - 30 Sep $ 1,752.00
PDX
Portland
Alaska Airlines
2 STOPS
CNS
Cairns
CNS
Cairns
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
15 Sep - 30 Sep $ 2,053.00
PDX
Portland
Air Canada
2 STOPS
CNS
Cairns
CNS
Cairns
Air Canada
2 STOPS
PDX
Portland
Pick dates
15 Sep - 30 Sep $ 2,979.00
PDX
Portland
Air Canada
2 STOPS
CNS
Cairns
CNS
Cairns
Air Canada
2 STOPS
PDX
Portland
Pick dates

One-way flights to Cairns from Portland

6:30 AM - 2:25 PM
Qantas
2 Stops
41h 25m
PDX - CNS
$ 814
Kiwi
Pick dates
10:30 AM - 9:25 PM
Jetstar Airways
2 Stops
26h 5m
PDX - CNS
$ 821
Kiwi
Pick dates
3:33 PM - 2:25 PM
Qantas
2 Stops
32h 22m
PDX - CNS
$ 862
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Cairns (CNS)

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 Cairns (CNS)
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 Cairns (CNS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.