Cheap Frontier Airlines flights Trenton (TTN) to St. Louis (STL)

Cheap Frontier Airlines flights Trenton (TTN) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $164 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 2 - Fri, Oct 3

TTN

Trenton

STL

St. Louis

$164 Roundtrip, found 2 days ago

$164

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from Trenton to St. Louis, returning Fri, Oct 3, priced at $164 found 2 days ago

Sun, Oct 19 - Thu, Oct 23

TTN

Trenton

STL

St. Louis

$228 Roundtrip, found 5 days ago

$228

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Oct 19 from Trenton to St. Louis, returning Thu, Oct 23, priced at $228 found 5 days ago