Our data suggests that currently, the cheapest flights from Ontario are being offered by Undisclosed Carrier, American Airlines, and Delta. For example, Undisclosed Carrier flights from Ontario to San Antonio, start at $9, American Airlines flights from Ontario to New York John F Kennedy Intl Airport cost around $10, and Delta flights from Ontario to Chicago Midway Airport are around $12.
Currently, the cheapest flight from Ontario found by our users is for $18 to Las Vegas. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $474 to travel from Ontario to Las Vegas.
Seattle, Dallas/Fort Worth Airport and Denver are currently the destinations served most frequently from Ontario, with 9, 8 and 8 flights per day on average, respectively.
Airlines including American Airlines, Delta and United Airlines frequently fly from Ontario. You can view other airlines by performing a quick search in the form above.
If you are looking for a cheap first class flight, consider flights to Santa Fe, for which the starting price of a first class seat can be as low as $233.