Philadelphia (PHL) to Ontario (ONT) flight deal in economy from $354

Wednesday, August 5th, 2026

7 round-trip options

Returning
Tue, Aug 11, 20266 Day Trip
$432 USD
Returning
Wed, Aug 12, 20267 Day Trip
$461 USD
Returning
Fri, Aug 14, 20269 Day Trip
$482 USD
Returning
Sat, Aug 15, 202610 Day Trip
$481 USD
Returning
Mon, Aug 17, 202612 Day Trip
$467 USD
Returning
Tue, Aug 18, 202613 Day Trip
$432 USD
Returning
Wed, Aug 19, 202614 Day Trip
$510 USD