What is the cheapest month to fly from Chicago to Philadelphia?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Chicago (ORD) to Philadelphia (PHL), with fares starting from $107.

What is the lowest current fare from ORD to PHL?

The lowest currently-listed fare from Chicago (ORD) to Philadelphia (PHL) is $107 on 2026-09-09.

How long is the flight from Chicago to Philadelphia?

Direct flights from ORD to PHL cover approximately 1,088 km (676 miles), with an estimated flight time of 1h 17m. Operating airlines: AA, F9, UA.

Cheap flights from Chicago to Philadelphia

Cheapest current fares: $107 in September 2026, 1,088 km direct flight in ~1h 17m.

Last updated August 10, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Chicago (ORD) to Philadelphia (PHL). Refreshed daily.

Chicago (ORD) → Philadelphia (PHL)

September 2026 $107
August 2026 $113

Frequently asked questions

What is the cheapest month to fly from Chicago to Philadelphia?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Chicago (ORD) to Philadelphia (PHL), with fares starting from $107.
What is the lowest current fare from ORD to PHL?

The lowest currently-listed fare from Chicago (ORD) to Philadelphia (PHL) is $107 on 2026-09-09.
How long is the flight from Chicago to Philadelphia?

Direct flights from ORD to PHL cover approximately 1,088 km (676 miles), with an estimated flight time of 1h 17m. Operating airlines: AA, F9, UA.

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