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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.
Use Google Flights to explore cheap flights to anywhere. Search destinations and track prices to find and book your next flight.
The cheapest ticket to Ontario from the United States found in the last 72 hours was $26 one-way, and $92 round-trip. The most popular route is New York LaGuardia to Toronto Pearson Intl and the cheapest round-trip airline ticket found on this route in the last 72 hours was $199.
Searching for tickets to Ontario, CA? Our unique Kiwi-Code goes through hundreds of airlines to find you the cheapest flight tickets to Ontario that you can’t book anywhere else
Find flights to Ontario from $67. Fly from California on WestJet, Flair Airlines and more. Search for Ontario flights on KAYAK now to find the best deal.
Travelmath provides flight information to help you plan a trip. You can calculate things like the straight line distance between cities. Or if you're taking an international flight and you want to plan your arrival time, check the flight time between airports.
Book Cheap Flights to Ontario: Search and compare airfares on Tripadvisor to find the best flights for your trip to Ontario. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for flights going to and from your destination.
