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

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

Prices were available within the past 7 days and start at for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 8 - Tue, Jun 9

STL

St. Louis

TTN

Trenton

$190 Roundtrip, found 13 hours ago

$190

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Jun 8 from St. Louis to Trenton, returning Tue, Jun 9, priced at $190 found 13 hours ago

Fri, Jun 5 - Wed, Jun 10

STL

St. Louis

TTN

Trenton

$195 Roundtrip, found 13 hours ago

$195

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Fri, Jun 5 from St. Louis to Trenton, returning Wed, Jun 10, priced at $195 found 13 hours ago

Fri, Jun 5 - Thu, Jun 11

STL

St. Louis

TTN

Trenton

$215 Roundtrip, found 13 hours ago

$215

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Fri, Jun 5 from St. Louis to Trenton, returning Thu, Jun 11, priced at $215 found 13 hours ago