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Ontario California aerial with San Gabriel Mountains
ONT
Ontario
Philadelphia skyline with City Hall
PHL
Philadelphia

Ontario → Philadelphia

Frontier Airlines · Round Trip · Nonstop

Save $201 (55% off)
Compared to the typical price of $364
$163$364

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
Apr 22, 2026
Returns
Apr 26, 2026

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