Earn point on your loyalty program!arrow arc left

Cheap flights from Portland (PDX) to Chicago (CHI)

Know your dates, get live prices in seconds

How to find the cheapest flight from Portland (PDX) to Chicago (CHI)

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

Cheap flights from Portland to Chicago in November , December 2026

12 Nov - 10 Dec $ 318.00
PDX
Portland
Alaska Airlines
1 STOPS
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland
21 Nov - 10 Dec $ 364.00
PDX
Portland
Alaska Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland
14 Nov - 10 Dec $ 365.00
PDX
Portland
Alaska Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland

Last minute flights from Portland to Chicago

17 Nov - 30 Nov $ 588.00
PDX
Portland
Alaska Airlines
1 STOPS
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland
18 Nov - 30 Nov $ 617.00
PDX
Portland
Alaska Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland
17 Nov - 30 Nov $ 617.00
PDX
Portland
Alaska Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Alaska Airlines
DIRECT
PDX
Portland

One-way flights to Chicago from Portland

12:02 PM - 8:55 PM
Frontier Airlines
1 Stops
10h 19m
PDX - CHI
7:01 AM - 7:01 AM
Alaska Airlines
0 Stops
4h 8m
PDX - CHI
7:01 AM - 7:01 AM
Alaska Airlines
0 Stops
4h 8m
PDX - CHI

How to find the cheapest flight from Portland (PDX) to Chicago (CHI)

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