Southwest Airlines flights to Ontario International

The best Southwest Airlines flight deals to Ontario International

Looking for a last-minute deal or the best direct flight? Find the biggest savings on one-way and round-trip flights to Ontario International with Southwest Airlines right here.

Alternative routes to Ontario

We found flights to 6 other airports near Ontario International. Find the one that works for you.

Flying to Ontario International with Southwest Airlines

The things to know before you go.
Nearby cities to visitOntario
Time difference between and Ontario International9 hrs (GMT -7)

Flying to Ontario International with Southwest Airlines: FAQs

No – if you want to travel with Southwest Airlines, Ontario International is currently the only airport serving Ontario.