$155 Cheap Frontier Airlines flights Atlanta (ATL) to Ontario Intl. Airport (ONT)

$155 Cheap Frontier Airlines flights Atlanta (ATL) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at $155 for one-way flights and $280 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 30 - Tue, Jul 7

ATL

Atlanta

ONT

Ontario

$280 Roundtrip, found 4 days ago

$280

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jun 30 from Atlanta to Ontario, returning Tue, Jul 7, priced at $280 found 4 days ago

Tue, Sep 29 - Wed, Oct 14

ATL

Atlanta

ONT

Ontario

$282 Roundtrip, found 3 days ago

$282

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Sep 29 from Atlanta to Ontario, returning Wed, Oct 14, priced at $282 found 3 days ago

Tue, Sep 29 - Thu, Oct 15

ATL

Atlanta

ONT

Ontario

$288 Roundtrip, found 3 days ago

$288

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Sep 29 from Atlanta to Ontario, returning Thu, Oct 15, priced at $288 found 3 days ago

Sat, Sep 26 - Thu, Oct 15

ATL

Atlanta

ONT

Ontario

$294 Roundtrip, found 3 days ago

$294

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Sep 26 from Atlanta to Ontario, returning Thu, Oct 15, priced at $294 found 3 days ago

Sun, Aug 30 - Tue, Sep 15

ATL

Atlanta

ONT

Ontario

$296 Roundtrip, found 3 days ago

$296

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Aug 30 from Atlanta to Ontario, returning Tue, Sep 15, priced at $296 found 3 days ago

Thu, Jul 2 - Tue, Jul 7

ATL

Atlanta

ONT

Ontario

$299 Roundtrip, found 4 days ago

$299

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Jul 2 from Atlanta to Ontario, returning Tue, Jul 7, priced at $299 found 4 days ago