When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 49 days in advance, which can save you up to 57% on flights from Philadelphia to Illinois compared to booking the week you need them. Waiting 49 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $178. For sooner than that we have options available in the next 3 days from $312.
September can be a great time to fly to Illinois from Philadelphia with a flight ticket averaging about $213. Cheapflights users have found deals in the month of September for as cheap as $60. The most expensive prices can be found in the month of February.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Illinois as you normally would.
Fly from
Fly to
Budget
$46 - $149
Route
Depart
Return
Price
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Tue 5/21
Nonstop2h 22m
Chicago O'Hare Intl
Wed 5/22
Nonstop2h 03m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Wed 7/17
Nonstop2h 24m
Chicago O'Hare Intl
Tue 7/23
Nonstop2h 03m
PhiladelphiaLambert-St Louis
PHL - STL
PHLSTL
Philadelphia
Wed 5/29
Nonstop2h 27m
Lambert-St Louis
Wed 6/26
Nonstop2h 12m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Tue 7/9
Nonstop2h 24m
Chicago O'Hare Intl
Sat 7/13
Nonstop2h 03m
PhiladelphiaLambert-St Louis
PHL - STL
PHLSTL
Philadelphia
Sat 7/13
Nonstop2h 30m
Lambert-St Louis
Wed 7/17
Nonstop2h 13m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Wed 5/29
1 stop7h 05m
Chicago O'Hare Intl
Sat 6/1
Nonstop2h 03m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Tue 5/28
1 stop15h 12m
Chicago O'Hare Intl
Tue 6/4
1 stop13h 20m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Thu 6/6
1 stop6h 40m
Chicago O'Hare Intl
Thu 6/13
1 stop15h 41m
PhiladelphiaChicago O'Hare Intl
PHL - ORD
PHLORD
Philadelphia
Sat 5/25
Nonstop2h 24m
Chicago O'Hare Intl
Tue 5/28
Nonstop1h 54m
No data available for this route at this time. Please check back soon.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
Overall
Boarding
Comfort
Crew
Food
Entertainment
Reviews
The seats are too narrow and uncomfortable. I do appreciate that there was room for my knees. I hate the boarding circus.
12%of flight departures | Early morningMidnight to 6 am |
---|---|
27%of flight departures | Morning6 am to noon |
50%of flight departures | AfternoonNoon to 6 pm |
11%of flight departures | Evening6 pm to midnight |
Cheapflights makes it easy to find Philadelphia to Illinois flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Cheapflights helps you find that perfect flight to Illinois from Philadelphia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Certainly. Search results for flights to Illinois from Philadelphia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Not ready to book yet? You can track prices for flights from Philadelphia to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.