Cheap flights from New York State to Los Angeles from $112

In general, September is the cheapest month to fly from State of New York to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. If you aren’t able to travel during the month of September, then book flights to Ontario from State of New York during October instead. Flights to Ontario in October, while not as cheap as those in September, still average around $287.

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $307. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from State of New York to Ontario for around $387.

In the evening is the cheapest time of day to fly from State of New York to Ontario when you can find flight prices for as low as $332. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $337 on average. Flights to Ontario from State of New York in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from New York John F Kennedy Intl to Ontario for the best New York - Ontario flight prices

You are more likely to see cheaper flights to Ontario from State of New York when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from State of New York for as low as $271 on momondo.

There are 2 cabin classes available to choose from on New York to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Alaska Airlines, Delta, and Frontier are the most popular carriers operating from New York to Ontario

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Ontario from State of New York according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 10 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

As of February 2026, 6 flights take off from State of New York and land in Ontario each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

Average flight duration from State of New York to Ontario depends on which airport you fly into and out of. Flying from Buffalo to Los Angeles is 5h 14m on average, while flying from Newark to Los Angeles is 5h 50m on average. Los Angeles is the most popular airport in Ontario.