Cheap Frontier Airlines flights Charlotte (CLT) to Ontario Intl. Airport (ONT)

Cheap Frontier Airlines flights Charlotte (CLT) to Ontario Intl. Airport (ONT)

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, Jun 23 - Wed, Jul 8

CLT

Charlotte

ONT

Ontario

$320 Roundtrip, found 4 days ago

$320

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jun 23 from Charlotte to Ontario, returning Wed, Jul 8, priced at $320 found 4 days ago

Tue, Jun 23 - Mon, Jul 6

CLT

Charlotte

ONT

Ontario

$340 Roundtrip, found 4 days ago

$340

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jun 23 from Charlotte to Ontario, returning Mon, Jul 6, priced at $340 found 4 days ago

Thu, Jun 4 - Wed, Jun 10

CLT

Charlotte

ONT

Ontario

$344 Roundtrip, found 6 days ago

$344

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jun 4 from Charlotte to Ontario, returning Wed, Jun 10, priced at $344 found 6 days ago

Fri, Jun 5 - Wed, Jun 10

CLT

Charlotte

ONT

Ontario

$350 Roundtrip, found 6 days ago

$350

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Jun 5 from Charlotte to Ontario, returning Wed, Jun 10, priced at $350 found 6 days ago

Thu, Jun 4 - Sun, Jun 7

CLT

Charlotte

ONT

Ontario

$354 Roundtrip, found 6 days ago

$354

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jun 4 from Charlotte to Ontario, returning Sun, Jun 7, priced at $354 found 6 days ago

Tue, Jun 2 - Wed, Jun 10

CLT

Charlotte

ONT

Ontario

$355 Roundtrip, found 6 days ago

$355

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Charlotte to Ontario, returning Wed, Jun 10, priced at $355 found 6 days ago

Tue, Jun 23 - Thu, Jul 9

CLT

Charlotte

ONT

Ontario

$360 Roundtrip, found 4 days ago

$360

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jun 23 from Charlotte to Ontario, returning Thu, Jul 9, priced at $360 found 4 days ago

Tue, Jun 2 - Sun, Jun 7

CLT

Charlotte

ONT

Ontario

$365 Roundtrip, found 6 days ago

$365

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Charlotte to Ontario, returning Sun, Jun 7, priced at $365 found 6 days ago

Sat, Jun 6 - Wed, Jun 10

CLT

Charlotte

ONT

Ontario

$370 Roundtrip, found 6 days ago

$370

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Jun 6 from Charlotte to Ontario, returning Wed, Jun 10, priced at $370 found 6 days ago

Thu, Jun 4 - Thu, Jun 11

CLT

Charlotte

ONT

Ontario

$374 Roundtrip, found 6 days ago

$374

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Jun 4 from Charlotte to Ontario, returning Thu, Jun 11, priced at $374 found 6 days ago

Tue, Jun 2 - Tue, Jun 9

CLT

Charlotte

ONT

Ontario

$380 Roundtrip, found 13 hours ago

$380

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Charlotte to Ontario, returning Tue, Jun 9, priced at $380 found 13 hours ago

Tue, Jun 2 - Sat, Jun 6

CLT

Charlotte

ONT

Ontario

$385 Roundtrip, found 6 days ago

$385

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Jun 2 from Charlotte to Ontario, returning Sat, Jun 6, priced at $385 found 6 days ago