Philadelphia (PHL) to Ontario (ONT) flight deal in economy from $354
PHLPhiladelphia International Airport
Philadelphia, United States
ONTOntario International Airport
Ontario, United States
$463 USD
-24%$354 USD
Verified 13 days agoOctober 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Good Availability
45% of dates checked are available within 10% of the lowest price
Sunday, October 4th, 2026
6 round-trip options
Returning
Sat, Oct 10, 2026•6 Day Trip
$354 USD
Returning
Sun, Oct 11, 2026•7 Day Trip
$489 USD
Returning
Wed, Oct 14, 2026•10 Day Trip
$387 USD
Returning
Thu, Oct 15, 2026•11 Day Trip
$436 USD
Returning
Fri, Oct 16, 2026•12 Day Trip
$387 USD
Returning
Sat, Oct 17, 2026•13 Day Trip
$354 USD