Flights to Southwest Illinois from Philadelphia - ￥56,670

View ￥56,670 flight on Thu, Jul 24, 2025Opens in a new window

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Cheap Flights from Philadelphia to Southwest Illinois (ILG-STL)

Prices were available within the past 7 days and start at ￥56,670 for one-way flights and ￥77,840 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥77,840 Roundtrip, found 6 days ago
￥77,840
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥77,840 found 6 days ago
American Airlines
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥79,270 Roundtrip, found 6 days ago
￥79,270
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥79,270 found 6 days ago
American Airlines
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥79,490 Roundtrip, found 6 days ago
￥79,490
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥79,490 found 6 days ago
American Airlines
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥80,530 Roundtrip, found 6 days ago
￥80,530
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥80,530 found 6 days ago
Delta
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥80,810 Roundtrip, found 6 days ago
￥80,810
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥80,810 found 6 days ago
United
Fri, Jul 25 - Sun, Jul 27
PHL
Philadelphia
STL
St. Louis
￥91,660 Roundtrip, found 6 days ago
￥91,660
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 25 from Philadelphia to St. Louis, returning Sun, Jul 27, priced at ￥91,660 found 6 days ago