OAJ - ONT

$483 Find Cheap Flights from Jacksonville to Ontario - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Ontario departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$483
Delta
Mon 8/24Fri 8/28
OAJ - ONT • 2 stops
Top airlines
Cheapest • from $483 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Jacksonville and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $493 (round-trip)
Shortest trip • 8h 03m (one-way)
Insights
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Flight Deals

Cheap Flights from Jacksonville to Ontario (OAJ-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Ontario

Mon, Aug 24 - Fri, Aug 28
Delta Logo
2:27 pm - 11:34 pm
OAJ
-
ONT
12h 07m
2 stops
Delta Logo
12:00 pm - 10:29 pm
ONT
-
OAJ
7h 29m
1 stop
$483Delta
Mon, Aug 24 - Fri, Aug 28
Delta Logo
2:27 pm - 11:34 pm
OAJ
-
ONT
12h 07m
2 stops
Delta Logo
6:01 pm - 11:30 am
ONT
-
OAJ
14h 29m
2 stops
$488Delta
Mon, Aug 24 - Fri, Aug 28
Delta Logo
6:00 am - 10:42 am
OAJ
-
ONT
7h 42m
1 stop
Delta Logo
12:00 pm - 10:29 pm
ONT
-
OAJ
7h 29m
1 stop
$588Delta
Mon, Aug 3 - Mon, Aug 31
American Airlines Logo
6:11 pm - 10:34 pm
OAJ
-
ONT
7h 23m
1 stop
American Airlines Logo
4:07 pm - 9:53 am
ONT
-
OAJ
14h 46m
2 stops
$622American Airlines
Mon, Aug 3 - Mon, Aug 31
American Airlines Logo
6:37 am - 6:18 pm
OAJ
-
ONT
14h 41m
2 stops
American Airlines Logo
12:59 pm - 9:53 am
ONT
-
OAJ
17h 54m
2 stops
$728American Airlines
Sat, Aug 1 - Sat, Aug 8
American Airlines Logo
6:11 pm - 10:34 pm
OAJ
-
ONT
7h 23m
1 stop
American Airlines Logo
6:00 am - 6:38 pm
ONT
-
OAJ
9h 38m
2 stops
$834American Airlines
Mon, Aug 3 - Mon, Aug 31
Delta Logo
2:27 pm - 6:30 pm
OAJ
-
ONT
7h 03m
1 stop
Delta Logo
12:00 pm - 10:06 pm
ONT
-
OAJ
7h 06m
1 stop
$956Delta
Mon, Aug 24 - Fri, Aug 28
American Airlines Logo
7:09 pm - 9:34 am
OAJ
-
ONT
17h 25m
2 stops
American Airlines Logo
6:00 am - 9:21 pm
ONT
-
OAJ
12h 21m
3 stops
$1,023American Airlines
Sat, Aug 1 - Sat, Aug 8
Delta Logo
12:11 pm - 6:30 pm
OAJ
-
ONT
9h 19m
1 stop
Delta Logo
12:00 pm - 10:29 pm
ONT
-
OAJ
7h 29m
1 stop
$1,883Delta
Booking Insights

KAYAK's insights & trends for Jacksonville to Ontario flights

Get data-powered insights and trends into flights from Jacksonville to Ontario to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Jacksonville to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Jacksonville to Ontario were found on Delta ($483) and American Airlines ($622).

Good to know

Cheapest flight$443
Flight from Jacksonville to Ontario

When to book flights from Jacksonville to Ontario

Are your dates flexible? Find out the best times to travel from Jacksonville to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Jacksonville to Ontario

  • What is the cheapest flight from Jacksonville to Ontario?

    In the last 5 days, the lowest price for a flight from Jacksonville to Ontario was $483 for a round-trip ticket.

  • Do I need a passport to fly between Jacksonville and Ontario?

    No

  • Which aircraft models fly most regularly from Jacksonville to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Jacksonville to Ontario?

    SkyTeam is the only airline alliance operating flights between Jacksonville and Ontario.

  • How does KAYAK find such low prices on flights from Jacksonville to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Jacksonville to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Jacksonville to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Jacksonville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Jacksonville to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Jacksonville with another airline. Booking your flights between Jacksonville and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Jacksonville to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Jacksonville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Jacksonville to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Jacksonville to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8453 reviews
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
7.8Comfort
Airline reviews

Crew was real good, flight was smooth and came in early.

10.0 ExcellentAnonymous, Jun 2026
DTW - SAN
Read more Delta reviews

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Everything you need to know for your flight from Jacksonville to Ontario

Information on your arrival and departure airports