Cheap Frontier Airlines flights Chicago (ORD) to Knoxville (TYS)

Cheap Frontier Airlines flights Chicago (ORD) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 21 - Mon, Jul 27

ORD

Chicago

TYS

Knoxville

$259 Roundtrip, found 1 day ago

$259

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 21 from Chicago to Knoxville, returning Mon, Jul 27, priced at $259 found 1 day ago

Thu, Jun 4 - Fri, Jun 12

ORD

Chicago

TYS

Knoxville

$320 Roundtrip, found 1 day ago

$320

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jun 4 from Chicago to Knoxville, returning Fri, Jun 12, priced at $320 found 1 day ago

Sun, Jul 19 - Fri, Jul 24

ORD

Chicago

TYS

Knoxville

$399 Roundtrip, found 1 hour ago

$399

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Sun, Jul 19 from Chicago to Knoxville, returning Fri, Jul 24, priced at $399 found 1 hour ago