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If traveling to Ontario, the cheapest city to fly from in the last 3 days was Dallas, with flights as low as $34 one-way and $38 round-trip. Flights from Seattle are the most searched and start at $48 for a return trip.
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Book cheap flights to Ontario (ONT) with United Airlines. Enjoy all the in-flight perks on your Ontario flight, including speed Wi-Fi.
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.
Find cheap flights to Ontario Ontario (ONT), California from $83. Search and compare round-trip, one-way, or last-minute flights to Ontario, CA.
Round Trip One Way Multi-City. Cheap flights from United States to Ontario (ONT), California. Search and Save with FlightHub.com.
Use Google Flights to find cheap departing flights to Ontario and to track prices for specific travel dates for your next getaway.
