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

Tue, Dec 1 - Wed, Dec 16

SFO

San Francisco Intl.

ONT

Ontario Intl. Airport

$38 Roundtrip, found 1 day ago

$38

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Dec 1 from San Francisco Intl. to Ontario Intl. Airport, returning Wed, Dec 16, priced at $38 found 1 day ago

Mon, Jan 25 - Thu, Jan 28

PHX

Sky Harbor Intl.

SNA

John Wayne

$48 Roundtrip, found 9 hours ago

$48

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Mon, Jan 25 from Sky Harbor Intl. to John Wayne, returning Thu, Jan 28, priced at $48 found 9 hours ago

Thu, Nov 26 - Fri, Dec 4

DEN

Denver Intl.

ONT

Ontario Intl. Airport

$53 Roundtrip, found 1 hour ago

$53

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Thu, Nov 26 from Denver Intl. to Ontario Intl. Airport, returning Fri, Dec 4, priced at $53 found 1 hour ago

Thu, Dec 3 - Mon, Dec 14

SFO

San Francisco Intl.

SNA

John Wayne

$58 Roundtrip, found 15 hours ago

$58

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Thu, Dec 3 from San Francisco Intl. to John Wayne, returning Mon, Dec 14, priced at $58 found 15 hours ago