Cheap Frontier Airlines flights Boise (BOI) to Knoxville (TYS)

Cheap Frontier Airlines flights Boise (BOI) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $320 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 21 - Wed, Jul 29

BOI

Boise

TYS

Knoxville

$320 Roundtrip, found 1 day ago

$320

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 21 from Boise to Knoxville, returning Wed, Jul 29, priced at $320 found 1 day ago

Thu, Jul 23 - Wed, Jul 29

BOI

Boise

TYS

Knoxville

$339 Roundtrip, found 1 day ago

$339

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 23 from Boise to Knoxville, returning Wed, Jul 29, priced at $339 found 1 day ago

Tue, Jul 21 - Mon, Aug 3

BOI

Boise

TYS

Knoxville

$360 Roundtrip, found 1 day ago

$360

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 21 from Boise to Knoxville, returning Mon, Aug 3, priced at $360 found 1 day ago

Thu, Jul 23 - Mon, Aug 3

BOI

Boise

TYS

Knoxville

$379 Roundtrip, found 1 day ago

$379

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 23 from Boise to Knoxville, returning Mon, Aug 3, priced at $379 found 1 day ago

Sun, Jul 26 - Wed, Jul 29

BOI

Boise

TYS

Knoxville

$389 Roundtrip, found 1 day ago

$389

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 26 from Boise to Knoxville, returning Wed, Jul 29, priced at $389 found 1 day ago

Sun, Jul 26 - Mon, Aug 3

BOI

Boise

TYS

Knoxville

$429 Roundtrip, found 1 day ago

$429

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 26 from Boise to Knoxville, returning Mon, Aug 3, priced at $429 found 1 day ago