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If traveling to Ontario, the cheapest city to fly from in the last 3 days was San Francisco, with flights as low as $33 one-way and $38 round-trip. Flights from Seattle are the most searched and start at $48 for a return trip.
We've compared ticket prices from all top online travel agents and airlines flying to Ontario International Airport to get you the cheapest flights. With Skyscanner, there are no hidden fees – the price you see is the price you pay.
All 25 airports with direct flights to Ontario, California, USA. See flight times and what days of the week you can fly non-stop with American Airlines, Delta, Alaska Airlines and 8 other airlines to Ontario International Airport (ONT).
All direct (non-stop) flights to Ontario (ONT) on an interactive route map. Explore planned flights from 25 different airports, find new routes and get detailed information on airlines flying to Ontario International Airport.
There are 22 non-stop flights from United States to Toronto, Ontario. See the full list of airline routes and airports to book your trip. You may need to drive to a nearby airport to get a direct flight. Use the form below to search for cheap airline tickets.
Book cheap flights to Ontario (ONT) with United Airlines. Enjoy all the in-flight perks on your Ontario flight, including speed Wi-Fi.
Ontario International Airport is a public airport two miles east of downtown Ontario, a city in San Bernardino County, California, US. Established in 1929, Ontario Municipal was renamed “International” in 1946.
