Flights from Philadelphia International Airport to Illinois

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Flight deals from Philadelphia International Airport to Illinois

Looking for cheap tickets from Philadelphia International Airport to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Flying from Philadelphia International Airport to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundRs21,636, Chicago
Cheapest month to flyJuly
Average flight time2 hrs, 19 mins
Average flights per week1,128
Most popular airlineAlaska Airlines

Frequently asked questions

Yes - direct flights currently operate from Philadelphia International Airport to Chicago O'Hare International Airport in Illinois.
We looked at all of the upcoming return flights from Philadelphia International Airport to Illinois we could find over the next 12 months. It looks like Rs43,268 is the best price. This is good, compared to the average Illinois ticket price of Rs102,141.
The cheapest month to fly from Philadelphia International Airport to Greater Peoria Airport is currently May.
The cheapest month to fly from Philadelphia International Airport to Moline Airport is currently June.
The cheapest month to fly from Philadelphia International Airport to Decatur Airport is currently May.
And the cheapest month to fly from Philadelphia International Airport to Chicago O'Hare International Airport is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia International Airport to Illinois on Sunday, 22 June 2025.
If you're flying from Philadelphia International, 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 Philadelphia International Airport and Illinois is 2 hours and 18 minutes.