Cheap Frontier Airlines flights St. Louis (STL) to Boise (BOI)

Cheap Frontier Airlines flights St. Louis (STL) to Boise (BOI)

Prices were available within the past 7 days and start at for one-way flights and $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Fri, Oct 10

STL

St. Louis

BOI

Boise

$366 Roundtrip, found 2 days ago

$366

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from St. Louis to Boise, returning Fri, Oct 10, priced at $366 found 2 days ago

Thu, Oct 2 - Fri, Oct 10

STL

St. Louis

BOI

Boise

$371 Roundtrip, found 2 days ago

$371

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from St. Louis to Boise, returning Fri, Oct 10, priced at $371 found 2 days ago

Wed, Oct 1 - Thu, Oct 9

STL

St. Louis

BOI

Boise

$463 Roundtrip, found 2 days ago

$463

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from St. Louis to Boise, returning Thu, Oct 9, priced at $463 found 2 days ago

Thu, Oct 2 - Thu, Oct 9

STL

St. Louis

BOI

Boise

$468 Roundtrip, found 2 days ago

$468

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from St. Louis to Boise, returning Thu, Oct 9, priced at $468 found 2 days ago

Sat, Oct 4 - Fri, Oct 10

STL

St. Louis

BOI

Boise

$470 Roundtrip, found 2 days ago

$470

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Oct 4 from St. Louis to Boise, returning Fri, Oct 10, priced at $470 found 2 days ago

Wed, Oct 1 - Sun, Oct 12

STL

St. Louis

BOI

Boise

$550 Roundtrip, found 2 days ago

$550

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from St. Louis to Boise, returning Sun, Oct 12, priced at $550 found 2 days ago

Thu, Oct 2 - Sun, Oct 12

STL

St. Louis

BOI

Boise

$555 Roundtrip, found 2 days ago

$555

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from St. Louis to Boise, returning Sun, Oct 12, priced at $555 found 2 days ago

Sat, Oct 4 - Thu, Oct 9

STL

St. Louis

BOI

Boise

$567 Roundtrip, found 2 days ago

$567

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Oct 4 from St. Louis to Boise, returning Thu, Oct 9, priced at $567 found 2 days ago