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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Check our newest flight offers to Philadelphia:
- $206
Spirit Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 01/21/2025 02:02 pm Philadelphia, PA (PHL) Chicago, IL (ORD) 01/30/2025 06:39 am - $360 Spirit Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 01/12/2025 06:55 am Philadelphia, PA (PHL) Chicago, IL (ORD) 01/20/2025 06:00 am - $411 Spirit Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Philadelphia, PA (PHL) 12/24/2024 12:09 pm Philadelphia, PA (PHL) Chicago, IL (ORD) 01/01/2025 05:23 am
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