One-Way as Low as $81 to ONT | OAK to ONT Flights
https://www.southwest.com/Southwest/Flights
AdFirst Travel Date Available: 5/21/2024. Seats/dates/mkts. Lmtd; restr/excl apply. Your Trip Comes With Low Fares and No Hidden Fees. That's Transfarency.® Book Today!
Inflight Entertainment · Low Fares, No Hidden Fees · Award-Winning Rewards