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

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
United StatesONT

Ontario International Airport

Ontario, United States
$463 USD
-24%$354 USD
Verified 13 days ago
Good Availability
45% of dates checked are available within 10% of the lowest price

Sunday, January 3rd, 2027

4 round-trip options

Returning
Fri, Jan 8, 2027•5 Day Trip
$620 USD
Google Flights
Returning
Mon, Jan 11, 2027•8 Day Trip
$686 USD
Google Flights
Returning
Tue, Jan 12, 2027•9 Day Trip
$686 USD
Google Flights
Returning
Wed, Jan 13, 2027•10 Day Trip
$686 USD
Google Flights