Search results
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 $48 for a return trip.
An average nonstop flight from the United States to Ontario takes 3h 40m, covering a distance of 968 miles. The most popular route is New York - Toronto with an average flight time of 1h 36m.
Use Google Flights to find cheap departing flights to Ontario and to track prices for specific travel dates for your next getaway.
Book cheap flights to Ontario (ONT) with United Airlines. Enjoy all the in-flight perks on your Ontario flight, including speed Wi-Fi.
Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.
Get real-time pricing on the United States to Ontario airfare in seconds on Cheapflights.ca today. Find cheap flights from the United States to Ontario from C$ 40. Search the best prices round-trip for Porter Airlines, Flair Airlines, Delta from 300+ websites.
$24 Cheap Flights to Ontario, CA. Roundtrip. One-way. Multi-city. 1 traveler. Economy. Looking for cheap flights to Ontario? Many airlines offer no change fee on selected flights and book now to earn your airline miles on top of our rewards! Find great 2024 Ontario flight deals now!
