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Ontario California aerial with San Gabriel Mountains
ONT
Ontario
Portland skyline with Mount Hood
PDX
Portland

Ontario → Portland

Frontier Airlines · Round Trip · Nonstop

Save $158 (52% off)
Compared to the typical price of $306
$148$306

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
Apr 28, 2026
Returns
May 3, 2026

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