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Flights from Portland Airport to Illinois

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Flight deals from Portland Airport to Illinois

Looking for cheap flights from Portland Airport to Illinois, or a last-minute trip? Find the cheapest prices on one-way and round-trip flights right here.
Chicago.$169 per passenger.Departing Wed, May 21, returning Wed, May 28.Round-trip flight with Spirit Airlines and Alaska Airlines.Outbound indirect flight with Spirit Airlines, departing from Portland on Wed, May 21, arriving in Chicago O'Hare International.Inbound indirect flight with Alaska Airlines, departing from Chicago O'Hare International on Wed, May 28, arriving in Portland.Price includes taxes and charges.From $169, select.
Decatur.$336 per passenger.Departing Sat, May 3, returning Wed, May 7.Round-trip flight with United.Outbound indirect flight with United, departing from Portland on Sat, May 3, arriving in Decatur.Inbound indirect flight with United, departing from Decatur on Wed, May 7, arriving in Portland.Price includes taxes and charges.From $336, select.
Moline.$341 per passenger.Departing Sat, May 3, returning Wed, May 7.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Portland on Sat, May 3, arriving in Moline.Inbound indirect flight with Delta, departing from Moline on Wed, May 7, arriving in Portland.Price includes taxes and charges.From $341, select.
Peoria.$384 per passenger.Departing Wed, May 21, returning Mon, May 26.Round-trip flight with United.Outbound indirect flight with United, departing from Portland on Wed, May 21, arriving in Greater Peoria.Inbound indirect flight with United, departing from Greater Peoria on Mon, May 26, arriving in Portland.Price includes taxes and charges.From $384, select.

Flying from Portland Airport to Illinois

Arm yourself with these facts on the fly.
Cheapest flight found$169, Chicago
Cheapest month to flyMay
Average flight time4 hrs
Average flights per week203
Most popular airlineQatar Airways

Frequently asked questions

Yes – direct flights currently operate from Portland Airport to Chicago O'Hare International Airport in Illinois.
We looked at all of the upcoming round-trip flights from Portland Airport to Illinois we could find over the next 12 months. It looks like $169 is the best price. This is good, compared to the average Illinois ticket price of $276.
The cheapest month to fly from Portland Airport to Moline Airport is currently May.
The cheapest month to fly from Portland Airport to Greater Peoria Airport is currently May.
The cheapest month to fly from Portland Airport to Decatur Airport is currently May.
And the cheapest month to fly from Portland Airport to Chicago O'Hare International Airport is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Portland Airport to Illinois on Wednesday, May 21, 2025.
If you're flying from Portland, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.
The average flight time between Portland Airport and Illinois is 4 hours.

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