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 $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Thu, Dec 11

BOI

Boise

TYS

Knoxville

$366 Roundtrip, found 1 day ago

$366

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Dec 7 from Boise to Knoxville, returning Thu, Dec 11, priced at $366 found 1 day ago