Cheap Frontier Airlines flights Pittsburgh (PIT) to St. Louis (STL)

Cheap Frontier Airlines flights Pittsburgh (PIT) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 10 - Sat, Oct 11

PIT

Pittsburgh

STL

St. Louis

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Pittsburgh to St. Louis, returning Sat, Oct 11, priced at $218 found 1 day ago

Fri, Oct 10 - Sun, Oct 12

PIT

Pittsburgh

STL

St. Louis

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Pittsburgh to St. Louis, returning Sun, Oct 12, priced at $228 found 1 day ago

Sun, Oct 5 - Thu, Oct 9

PIT

Pittsburgh

STL

St. Louis

$258 Roundtrip, found 1 day ago

$258

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Oct 5 from Pittsburgh to St. Louis, returning Thu, Oct 9, priced at $258 found 1 day ago