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Cheap Flights from Portland to Apple Valley (PDX-ONT)
Prices were available within the past 7 days and start at $29 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Sep 10 - Wed, Sep 11
PDX
Portland
ONT
Ontario
$58 Roundtrip, just found
$58
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Jul 23 - Tue, Aug 6
PDX
Portland
ONT
Ontario
$63 Roundtrip, found 2 hours ago
$63
Roundtrip
found 2 hours ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Jul 23 - Tue, Jul 30
PDX
Portland
ONT
Ontario
$68 Roundtrip, found 2 hours ago
$68
Roundtrip
found 2 hours ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Aug 13 - Wed, Aug 14
PDX
Portland
ONT
Ontario
$70 Roundtrip, just found
$70
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Fri, Sep 13 - Sat, Sep 14
PDX
Portland
ONT
Ontario
$72 Roundtrip, just found
$72
Roundtrip
just found
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Tue, Aug 20 - Wed, Aug 21
PDX
Portland
ONT
Ontario
$73 Roundtrip, just found
$73
Roundtrip
just found
Nearby Cities
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