Cheap Frontier Airlines flights Ontario (ONT) to Knoxville (TYS)

Cheap Frontier Airlines flights Ontario (ONT) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $315 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Fri, Oct 24

ONT

Ontario

TYS

Knoxville

$315 Roundtrip, found 3 days ago

$315

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from Ontario to Knoxville, returning Fri, Oct 24, priced at $315 found 3 days ago

Sun, Oct 26 - Thu, Nov 13

ONT

Ontario

TYS

Knoxville

$326 Roundtrip, found 3 days ago

$326

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Oct 26 from Ontario to Knoxville, returning Thu, Nov 13, priced at $326 found 3 days ago

Wed, Oct 1 - Mon, Oct 20

ONT

Ontario

TYS

Knoxville

$355 Roundtrip, found 3 days ago

$355

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from Ontario to Knoxville, returning Mon, Oct 20, priced at $355 found 3 days ago

Wed, Oct 1 - Sun, Oct 19

ONT

Ontario

TYS

Knoxville

$359 Roundtrip, found 3 days ago

$359

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Oct 1 from Ontario to Knoxville, returning Sun, Oct 19, priced at $359 found 3 days ago

Thu, Oct 23 - Thu, Nov 13

ONT

Ontario

TYS

Knoxville

$366 Roundtrip, found 3 days ago

$366

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Oct 23 from Ontario to Knoxville, returning Thu, Nov 13, priced at $366 found 3 days ago

Fri, Oct 24 - Thu, Nov 13

ONT

Ontario

TYS

Knoxville

$370 Roundtrip, found 3 days ago

$370

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Oct 24 from Ontario to Knoxville, returning Thu, Nov 13, priced at $370 found 3 days ago

Thu, Oct 30 - Sun, Nov 16

ONT

Ontario

TYS

Knoxville

$410 Roundtrip, found 3 days ago

$410

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Oct 30 from Ontario to Knoxville, returning Sun, Nov 16, priced at $410 found 3 days ago

Sun, Oct 26 - Sun, Nov 9

ONT

Ontario

TYS

Knoxville

$430 Roundtrip, found 3 days ago

$430

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Oct 26 from Ontario to Knoxville, returning Sun, Nov 9, priced at $430 found 3 days ago

Fri, Oct 17 - Sun, Nov 2

ONT

Ontario

TYS

Knoxville

$474 Roundtrip, found 3 days ago

$474

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Oct 17 from Ontario to Knoxville, returning Sun, Nov 2, priced at $474 found 3 days ago