Flights Philadelphia → Chicago — September 15, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Tuesday, September 15, 2026 on the Philadelphia–Chicago route: 1 stop itinerary (2 flights) via Orlando International (MCO), from Philadelphia International (PHL) to Chicago O'Hare (ORD), first flight Frontier Airlines F94173, departs 2:50 PM, arrives 10:59 PM, total travel time 9h 9m including layovers, flight time 5h 56m (layovers excluded), $143 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 5, 2026 and read by AirSource on September 10, 2026, 21:23 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: American Airlines AA1854, from Philadelphia International (PHL) to Chicago O'Hare (ORD), departs 12:39 PM, arrives 2:09 PM, direct, 2h 30m, $218 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable.