$99 Cheap Frontier Airlines flights Houston (IAH) to St. Louis (STL)

$99 Cheap Frontier Airlines flights Houston (IAH) to St. Louis (STL)

Prices were available within the past 7 days and start at $99 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 4 - Mon, Dec 8

IAH

Houston

STL

St. Louis

$160 Roundtrip, found 16 hours ago

$160

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Houston to St. Louis, returning Mon, Dec 8, priced at $160 found 16 hours ago

Thu, Dec 4 - Sun, Dec 7

IAH

Houston

STL

St. Louis

$173 Roundtrip, found 16 hours ago

$173

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Dec 4 from Houston to St. Louis, returning Sun, Dec 7, priced at $173 found 16 hours ago

Mon, Dec 1 - Mon, Dec 8

IAH

Houston

STL

St. Louis

$220 Roundtrip, found 16 hours ago

$220

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Mon, Dec 1 from Houston to St. Louis, returning Mon, Dec 8, priced at $220 found 16 hours ago

Mon, Dec 1 - Fri, Dec 5

IAH

Houston

STL

St. Louis

$233 Roundtrip, found 16 hours ago

$233

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Mon, Dec 1 from Houston to St. Louis, returning Fri, Dec 5, priced at $233 found 16 hours ago

Mon, Dec 1 - Sat, Dec 6

IAH

Houston

STL

St. Louis

$240 Roundtrip, found 16 hours ago

$240

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Mon, Dec 1 from Houston to St. Louis, returning Sat, Dec 6, priced at $240 found 16 hours ago

Sun, Nov 9 - Fri, Nov 14

IAH

Houston

STL

St. Louis

$433 Roundtrip, found 15 hours ago

$433

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sun, Nov 9 from Houston to St. Louis, returning Fri, Nov 14, priced at $433 found 15 hours ago

Sun, Nov 9 - Fri, Nov 14

IAH

Houston

STL

St. Louis

$449 Roundtrip, found 15 hours ago

$449

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Sun, Nov 9 from Houston to St. Louis, returning Fri, Nov 14, priced at $449 found 15 hours ago