Cheap flight tickets from Jacksonville to Ontario International

Compare Jacksonville to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Jacksonville to Ontario International

Looking for a cheap last-minute deal or the best return flight from Jacksonville Airport to Ontario International Airport? If you want to travel next month, return fares start from RM2,921. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Jacksonville to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Jacksonville to Ontario International flights are currently cheapest in June.

Jacksonville to Ontario: Flight information

The things to know before you go.
Cheapest flight foundRM1,070
Cheapest month to flyJune

Finding cheap flights from Jacksonville to Ontario International: Frequently asked questions

The best price we found for a return flight from Jacksonville to Ontario International is RM2,268. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Jacksonville to Ontario International. But we found flights with one or more stops from RM2,268.
As of June 2026, there are no flights flying from Jacksonville to Ontario International.
The cheapest month to fly from Jacksonville to Ontario International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Jacksonville Airport to Ontario International Airport on Sunday, 28 June 2026.
No airlines currently offer direct flights between Jacksonville Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Ontario International.

Flying from Albert J Ellis Airport (OAJ) to Ontario International Airport (ONT): what you need to know

  • Ontario is three hours behind Jacksonville and follows the UTC-7 timezone.

  • Leave plenty of time to make your OAJ to ONT flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as April, it's best to get to the airport earlier than normal. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're travelling during a peak period in general.

  • Choose a stopover if you prefer to break up your flight. Simply deselect 'Direct flights only' to look at your options for tickets from Albert J Ellis Airport to Ontario International Airport. Charlotte Douglas International Airport is a popular stopover on the OAJ to ONT route.

How to find the cheapest flights from Albert J Ellis Airport (OAJ) to Ontario International Airport (ONT)

  • RM1,070 is the best price for a one-way Albert J Ellis Airport to Ontario International Airport flight. A return flight starts from RM2,268. These fares may change based on availability and demand.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from OAJ to ONT if you book in advance. Airlines often offer some great early bird rates.

  • Finding cheap flights from Albert J Ellis Airport to Ontario International Airport is easy if you're flexible with your dates. Use the 'Whole month' search tool to see the lowest prices across every month and bag a great deal.

  • Stay on top of deals for cheap flights from OAJ to ONT by setting up a Price Alert. You'll get an email or push notification on the app when a special offer becomes available.

  • Tailor your trip with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Albert J Ellis Airport to Ontario International Airport.

Handy information about Albert J Ellis Airport (OAJ)

  • You'll find OAJ at 264 State Road 1265.

  • 83.69% of flights leaving Albert J Ellis Airport touch down at their destination on schedule. With its impressive on-time stats, you're unlikely to experience delays when jetting out of OAJ.

  • Central Jacksonville to Albert J Ellis Airport is approximately 23 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a cab or ride-sharing.

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • You'll find ONT at 2900 E. Airport Drive.

  • Ontario International Airport to central Ontario has a drive time of about 10 minutes. It's approximately 6 kilometres away.

  • Travelling to the centre by public transport will take you around 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • It's time to plan your dates for your flight from Albert J Ellis Airport to Ontario International Airport. August is the most popular month to visit Ontario. If you'd like a more low-key vibe, go in May.

  • Book your flight from Albert J Ellis Airport to Ontario International Airport for August if you want to visit Ontario during its warmest month. Expect temperatures of between 15ºC (59ºF) and 35ºC (95ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from OAJ to ONT in January. Temperatures average between 4ºC (39ºF) and 23ºC (73ºF) then.

Explore more of United States

  • Ontario has plenty going for it, but there are so many other parts of United States just waiting to be explored. Around 56 kilometres west of Ontario, a trip to Los Angeles will keep you on the move. Check out popular attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • San Diego is another standout destination in United States and is around 153 kilometres south of Ontario. No trip is complete without seeing San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.