Cheap flights from Jacksonville to Ontario (JAX - ONT) from $152

Monday is generally a great day to depart. Flying on this day could help you save up to 98%.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 34% on flights from Jacksonville to Ontario compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $460. For sooner than that we have options available in the next 3 days from $460.

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, August can be a great choice for travel to Ontario. Flights to Ontario from Jacksonville in August are about $391 on average during August, but can be found for as low as $184.

A simple way to save on the total cost of your ticket is to fly from Jacksonville to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

Some of our airline partners flying from Jacksonville to Ontario have new flexible policies in place due to COVID-19. American Airlines, Delta, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Yes, there are multiple flights from Jacksonville to Ontario for under $400. The cheapest flight booked recently is on Frontier for just $305, but on average you can expect to pay $375.

There are currently 20+ open flights from Jacksonville to Ontario within the next 7 days for less than $400.

According to our current data, Frontier ($305), United Airlines ($385), and American Airlines ($406) offers the cheapest pricing from Jacksonville to Ontario. Frontier is priced at 43% lower than the current average price of a flight leaving 3 months from now.

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $152. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Jacksonville to Ontario for a low price.

Before booking your flight from Jacksonville to Ontario check out the most popular airlines for this route: American Airlines, Delta or Frontier.

JAX and ONT are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. JAX to ONT refers to a flight route from Jacksonville Airport to Ontario Airport.