Cheap flights from Illinois to Philadelphia
Travel > North America > United States > Illinois to Philadelphia flights
The original capital of the nation, PHILADELPHIA founded by William Penn Jr. in 1682, on a grid system that was to provide the pattern for most American cities, is the fifth largest city in The United States.... (read more in our Philadelphia Travel Guide)
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Cheapest flights found for the next 6 months
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Check our newest flight offers to Philadelphia:
- $98
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 05/30/2024 05:33 am Philadelphia, PA (PHL) Chicago, IL (ORD) 06/04/2024 09:33 am - $148
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 05/30/2024 05:33 am Philadelphia, PA (PHL) Chicago, IL (ORD) 06/04/2024 05:10 am - $152
Spirit Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 04/23/2024 10:00 pm Philadelphia, PA (PHL) Chicago, IL (ORD) 05/02/2024 05:10 am - $174 Frontier Airlines
cheapoair.com check priceFrom To Departure Time Bloomington, IL (BMI) Philadelphia, PA (PHL) 05/02/2024 04:27 pm Philadelphia, PA (PHL) Bloomington, IL (BMI) 05/15/2024 08:40 pm - $179 Spirit Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 05/02/2024 09:25 pm Philadelphia, PA (PHL) Chicago, IL (ORD) 05/13/2024 09:05 am
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