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Top Flight Deals

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Sun, Sep 6 - Fri, Sep 11

SFO

San Francisco Intl.

ONT

Ontario Intl. Airport

$68 Roundtrip, found 10 hours ago

$68

Roundtrip

found 10 hours ago

Select Frontier Airlines flight, departing Sun, Sep 6 from San Francisco Intl. to Ontario Intl. Airport, returning Fri, Sep 11, priced at $68 found 10 hours ago

Wed, Aug 12 - Sat, Aug 15

DEN

Denver Intl.

ONT

Ontario Intl. Airport

$84 Roundtrip, found 6 days ago

$84

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Wed, Aug 12 from Denver Intl. to Ontario Intl. Airport, returning Sat, Aug 15, priced at $84 found 6 days ago

Sat, Oct 3 - Thu, Oct 8

DEN

Denver Intl.

SNA

John Wayne

$111 Roundtrip, found 2 days ago

$111

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Oct 3 from Denver Intl. to John Wayne, returning Thu, Oct 8, priced at $111 found 2 days ago

Thu, Oct 22 - Mon, Oct 26

IAH

George Bush Intercontinental

ONT

Ontario Intl. Airport

$146 Roundtrip, just found

$146

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Oct 22 from George Bush Intercontinental to Ontario Intl. Airport, returning Mon, Oct 26, priced at $146 just found