$184 Cheap Flights from Ontario (ONT) to Jacksonville (OAJ)

View $184 flight on Tue, Jun 3, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ)

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Find available prices by choosing your travel dates.

Cheap Flights from Ontario to Jacksonville (ONT-OAJ)

Prices were available within the past 7 days and start at $184 for one-way flights and $367 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jun 3 - Tue, Jun 10
ONT
Ontario
OAJ
Jacksonville
$367 Roundtrip, found 4 hours ago
$367
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Jun 3 from Ontario to Jacksonville, returning Tue, Jun 10, priced at $367 found 4 hours ago
Delta
Sun, May 25 - Wed, May 28
ONT
Ontario
OAJ
Jacksonville
$372 Roundtrip, found 3 days ago
$372
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, May 25 from Ontario to Jacksonville, returning Wed, May 28, priced at $372 found 3 days ago
Delta
Tue, Jul 1 - Tue, Jul 8
ONT
Ontario
OAJ
Jacksonville
$385 Roundtrip, found 3 hours ago
$385
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Jul 1 from Ontario to Jacksonville, returning Tue, Jul 8, priced at $385 found 3 hours ago
American Airlines
Wed, May 21 - Sun, May 25
ONT
Ontario
OAJ
Jacksonville
$387 Roundtrip, found 5 hours ago
$387
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, May 21 from Ontario to Jacksonville, returning Sun, May 25, priced at $387 found 5 hours ago
American Airlines
Wed, May 21 - Sun, May 25
ONT
Ontario
OAJ
Jacksonville
$390 Roundtrip, found 5 hours ago
$390
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, May 21 from Ontario to Jacksonville, returning Sun, May 25, priced at $390 found 5 hours ago
Delta
Wed, Jun 25 - Fri, Jul 4
ONT
Ontario
OAJ
Jacksonville
$391 Roundtrip, found 17 hours ago
$391
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Jun 25 from Ontario to Jacksonville, returning Fri, Jul 4, priced at $391 found 17 hours ago
Delta
Sat, May 17 - Sun, May 25
ONT
Ontario
OAJ
Jacksonville
$393 Roundtrip, found 15 hours ago
$393
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, May 17 from Ontario to Jacksonville, returning Sun, May 25, priced at $393 found 15 hours ago
Delta
Wed, Jun 25 - Sat, Jul 5
ONT
Ontario
OAJ
Jacksonville
$396 Roundtrip, found 17 hours ago
$396
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Jun 25 from Ontario to Jacksonville, returning Sat, Jul 5, priced at $396 found 17 hours ago
Delta
Tue, Sep 9 - Mon, Sep 15
ONT
Ontario
OAJ
Jacksonville
$403 Roundtrip, just found
$403
Roundtrip
just found
Select Delta flight, departing Tue, Sep 9 from Ontario to Jacksonville, returning Mon, Sep 15, priced at $403 just found
Delta
Tue, Jun 3 - Fri, Jun 6
ONT
Ontario
OAJ
Jacksonville
$404 Roundtrip, found 4 hours ago
$404
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Jun 3 from Ontario to Jacksonville, returning Fri, Jun 6, priced at $404 found 4 hours ago
Flights from Ontario (ONT) to Jacksonville (OAJ)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Albert J. Ellis
Airlines serving
American Airlines, Delta
Roundtrip price
$366
Distance
2263 mi

Ontario to Jacksonville Flights

The cheapest times to fly from Ontario to Jacksonville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Jacksonville are during the month of June. You can find some of the cheapest flights from Ontario to Jacksonville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Ontario to Jacksonville

Sunday is one of the best days to book for cheap flights from Ontario to Jacksonville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Ontario to Jacksonville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Jacksonville in 2025. You can also book with separate airlines for your outbound and return journeys, from $184 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Jacksonville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Jacksonville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ) cost?
Discover the latest flight deals from ONT to OAJ by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ONT to OAJ?
The cheapest flights from ONT to OAJ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ONT to OAJ?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ONT to OAJ. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ)?
Direct flights from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel dates and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from ONT to OAJ?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ)?
Book a flight from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ) last-minute?
Holding off until just before your trip to book a flight from ONT to OAJ often results in higher prices. While it’s possible to find some last-minute offers, they’re not always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book an ONT to OAJ flight and hotel package?
Compared with arranging hotels and flights separately, booking an ONT to OAJ flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our wide range of stays, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Albert J. Ellis Airport (OAJ)?
Typically, you’re able to reschedule or cancel your ONT to OAJ flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you want more information, visit our Customer Service portal.

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*Available to One Key members.