Cheap Frontier Airlines flights St. Louis (STL) to Sioux Falls (FSD)

Cheap Frontier Airlines flights St. Louis (STL) to Sioux Falls (FSD)

Prices were available within the past 7 days and start at for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 14 - Fri, Jun 26

STL

St. Louis

FSD

Sioux Falls

$280 Roundtrip, found 12 hours ago

$280

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Sun, Jun 14 from St. Louis to Sioux Falls, returning Fri, Jun 26, priced at $280 found 12 hours ago

Sun, Jun 14 - Mon, Jun 22

STL

St. Louis

FSD

Sioux Falls

$345 Roundtrip, found 12 hours ago

$345

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Sun, Jun 14 from St. Louis to Sioux Falls, returning Mon, Jun 22, priced at $345 found 12 hours ago

Tue, Jun 16 - Mon, Jun 22

STL

St. Louis

FSD

Sioux Falls

$410 Roundtrip, found 12 hours ago

$410

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, Jun 16 from St. Louis to Sioux Falls, returning Mon, Jun 22, priced at $410 found 12 hours ago