Cheap flights from Portland to Central Illinois

View AU$154 flight on Sun, 31 Aug. 2025Opens in a new window

Popular airlines from Portland to Central Illinois

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    United

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Cheap Flights from Portland (PDX) to Central Illinois (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$366 Return, found 3 days ago
AU$366
Return
found 3 days ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$366 found 3 days ago
Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$451 Return, found 20 hours ago
AU$451
Return
found 20 hours ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$451 found 20 hours ago
Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$460 Return, found 3 days ago
AU$460
Return
found 3 days ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$460 found 3 days ago
Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$505 Return, found 3 days ago
AU$505
Return
found 3 days ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$505 found 3 days ago
Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$522 Return, found 20 hours ago
AU$522
Return
found 20 hours ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$522 found 20 hours ago
Delta
Wed, 24 Sep. - Tue, 30 Sep.
PDX
Portland
MDW
Chicago
AU$561 Return, found 3 days ago
AU$561
Return
found 3 days ago
Select Delta flight, departing Wed, 24 Sep. from Portland to Chicago, returning Tue, 30 Sep., priced at AU$561 found 3 days ago
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