Portland (PDX) to Chicago (ORD) flight deal in economy from $315

Sunday, December 20th, 2026

9 round-trip options

Returning
Fri, Dec 25, 20265 Day Trip
$337 USD
Returning
Sat, Dec 26, 20266 Day Trip
$519 USD
Returning
Sun, Dec 27, 20267 Day Trip
$679 USD
Returning
Mon, Dec 28, 20268 Day Trip
$444 USD
Returning
Tue, Dec 29, 20269 Day Trip
$595 USD
Returning
Wed, Dec 30, 202610 Day Trip
$595 USD
Returning
Thu, Dec 31, 202611 Day Trip
$405 USD
Returning
Fri, Jan 1, 202712 Day Trip
$395 USD
Returning
Sat, Jan 2, 202713 Day Trip
$431 USD