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

Monday, October 5th, 2026

6 round-trip options

Returning
Sun, Oct 11, 20266 Day Trip
$489 USD
Returning
Mon, Oct 12, 20267 Day Trip
$443 USD
Returning
Thu, Oct 15, 202610 Day Trip
$436 USD
Returning
Fri, Oct 16, 202611 Day Trip
$387 USD
Returning
Sat, Oct 17, 202612 Day Trip
$354 USD
Returning
Sun, Oct 18, 202613 Day Trip
$628 USD