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JAX - ONT

Find cheap flights from Jacksonville to Ontario from $135

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Ontario departing on 6/26. 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
0 bags
Sun 6/9
Sun 6/16

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

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Cheap flight deals from Jacksonville to Ontario (JAX-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 and deals for you by selecting your travel dates.
Choose your dates
6:10 pm - 11:00 pmJAX-ONT
7h 50m1 stop
6:40 am - 10:41 pmONT-JAX
13h 01m1 stop
$368American Airlines
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Thu, Aug 1 - Wed, Aug 7
5:00 am - 11:51 amJAX-ONT
9h 51m2 stops
9:20 am - 10:41 pmONT-JAX
10h 21m1 stop
$373American Airlines
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Thu, Aug 1 - Tue, Aug 6
10:59 pm - 6:14 amJAX-ONT
10h 15m1 stop
7:14 am - 10:09 pmONT-JAX
11h 55m1 stop
$386Frontier
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Fri, May 24 - Fri, May 31
12:11 pm - 10:09 pmJAX-ONT
12h 58m1 stop
11:40 pm - 11:23 amONT-JAX
8h 43m1 stop
$460JetBlue
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Thu, May 23 - Sun, Jun 2
12:11 pm - 10:09 pmJAX-ONT
12h 58m1 stop
11:40 pm - 11:23 amONT-JAX
8h 43m1 stop
$474JetBlue
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Wed, May 22 - Sun, Jun 2
10:59 pm - 6:14 amJAX-ONT
10h 15m1 stop
7:14 am - 10:04 pmONT-JAX
11h 50m1 stop
$554Frontier
Find Deal
Fri, May 24 - Mon, May 27
5:25 pm - 9:11 pmJAX-ONT
6h 46m1 stop
6:00 am - 3:49 pmONT-JAX
6h 49m1 stop
$562United Airlines
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Mon, Jul 29 - Wed, Jul 31
5:25 pm - 9:11 pmJAX-ONT
6h 46m1 stop
5:20 am - 9:49 pmONT-JAX
13h 29m2 stops
$567United Airlines
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Mon, Jul 29 - Wed, Jul 31
12:19 pm - 10:15 pmJAX-ONT
12h 56m2 stops
7:00 am - 12:01 amONT-JAX
14h 01m2 stops
$747Alaska Airlines
Find Deal
Wed, Sep 4 - Sun, Sep 8
1:45 pm - 11:59 pmJAX-ONT
13h 14m2 stops
7:00 am - 9:58 pmONT-JAX
11h 58m2 stops
$868Alaska Airlines
Find Deal
Thu, Sep 5 - Sun, Sep 8

Flights from Jacksonville to Ontario - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Jacksonville to Ontario?

The average price of all flights from Jacksonville to Ontario clicked on KAYAK for each day over the last 12 months.
When flying from Jacksonville to Ontario, you should consider leaving on a Saturday and avoid Mondays if you are looking for the best rates. For your return to Jacksonville, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Jacksonville to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Jacksonville to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Jacksonville to Ontario is January, where tickets cost $351 on average. On the other hand, the most expensive months are June and December, where the average cost of tickets is $611 and $569 respectively.

How far in advance should I book a flight from Jacksonville to Ontario?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Jacksonville to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Jacksonville to Ontario, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Which airlines provide the cheapest flights from Jacksonville to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Jacksonville to Ontario found by KAYAK users in the last 72 hours was for $368 on American Airlines, followed by Frontier ($386). One-way flight deals have also been found from as low as $135 on Frontier and from $254 on United Airlines.

Good to know

Low season

January

High season

May

Cheapest flight

$135
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 2% increase in price.
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 3 days, the lowest price for a flight from Jacksonville to Ontario was $135 for a one-way ticket and $368 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Jacksonville to Ontario?

    When flying out of Jacksonville you will be using Jacksonville. You will be landing at Ontario, also known as Ontario.

  • 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Jacksonville and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Jacksonville to Ontario, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Jacksonville to Ontario are Delta and United Airlines. With an average price for the route of $505 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $489 and an overall rating of 7.4.

  • 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.

See more FAQs

Top 5 airlines serving 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.
8.0
DeltaOverall score based on 10768 reviews
7.4Food
7.9Comfort
8.0Entertainment
8.2Boarding
8.6Crew
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

It helps manage expectations to know that this is a discount airline. I brought my own snacks so that I wouldn't have to buy something if I got hungry or thirsty for soda during the flight. One of my seat mates was unaware that he would have to pay $4 for a Coke and was a bit upset. He hadn't listened to the flight attendant say "Drinks for purchase?". All of the employees I interacted with were friendly and professional. My one complaint is that the overhead bins are very low when they are open. I was heading for the middle seat and unexpectedly hit the top of my head on the bottom of the open overhead bin. The headrests were also a little uncomfortable. But overall, for the price, it was a decent value, and I would fly Breeze again.

Flight was on time. The crew was efficient and kind.

Did not like the fact that I was charged to take on a bag I usually put in the overhead

My flight was delayed, not by much.?very good communication during fest and waiting to board.

Communication with airline electronically was difficult. No number seemed available to talk to customer service.

What could have been better is if Discover credit card would be able to purchase food

Crew was inconsistent in instructions in advising passengers about seat backs during take off. Perfunctory announcements except from cabin.

The experience with Breeze was really great. The app makes managing flights easy. You can check in on there 24 hours in advance, and your boarding pass is there, too. The flight crew and the staff at both our airports were wonderful. Snacks and drinks were reasonably priced. The seats were very comfortable, they even had adjustable headrests on every seat. The only downside is not having entertainment or Wi-Fi available onboard.

The price is amazing. I was worried about how the flight would be as I never flew then. Seats were very comfortable. We had lots of legroom. The Akron airport was really nice. Overall it didn't have the stress we usually experience with flying. Highly recommend

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Delayed 4 hours from Charlotte to Nashville. Could have driven there faster. Information provided by AA was sparse.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

Poor availability of food. Cold cabin temperature. Extremely long waiting time for a flight attendant to respond to a call button signal.

Frontier is a crappy airline nothing about it is honest

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Crew members are very rude and not cooperate with passengers.

30 minute delay due to boarding and settling of a family.

The boarding time. I was in Section 1 the lady in charge just let people in section 3 without see us. Make a line , I have to step out and ask her. We were in the line and she just take my ticket and that’s it, so if I don’t ask her she could leave us at the end! We paid more for that privilege and. She doesn’t care….

See my previous comment which is mostly about our flight from Phoenix to SFO

I am HIGHLY unhappy with the amount of money I spent on the flight. Paid in advance only to find the flight at a discount price a week or so before the flight. I will not fly frontier again and have bad mouthed your business since to anyone I have spoken with about flying (which has been many a people). Crew was mediocre and instead of moving me to a spot where I could gain some leg room they sat their flight attendant there. Won’t be flying frontier in the future.

Well, I didn’t have food! So NA wasn’t an option. I’ll be back!

First time flying with Frontier . From buying tickets ,getting boarding pass and boarding plane was super easy. Definitely would fly again with Frontier .

Book cheap flights from Jacksonville to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Jacksonville to Ontario found on KAYAK in the last 72 hours.
6/26Wed
1 stopFrontier
10h 36mJAX-ONT
$135
6/20Thu
2 stopsFrontier
17h 41mJAX-ONT
$190
8/27Tue
1 stopUnited Airlines
7h 02mJAX-ONT
$254
6/18Tue
2 stopsUnited Airlines
13h 47mJAX-ONT
$259
5/17Fri
1 stopJetBlue
12h 58mJAX-ONT
$351
6/23Sun
1 stopDelta
7h 10mJAX-ONT
$352
5/17Fri
1 stopDelta
7h 55mJAX-ONT
$388
6/1Sat
1 stopJetBlue
12h 58mJAX-ONT
$422
6/1Sat
1 stopAmerican Airlines
7h 37mJAX-ONT
$428
5/16Thu
1 stopAmerican Airlines
7h 34mJAX-ONT
$430

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Last minute flights from Jacksonville to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Jacksonville to Ontario that are departing in the next 10 days.
5/14Tue
multi-stopJetBlue
12h 58mJAX-ONT
5/21Tue
multi-stopJetBlue
8h 43mONT-JAX
$688
5/11Sat
multi-stopJetBlue
12h 58mJAX-ONT
5/14Tue
multi-stopJetBlue
8h 43mONT-JAX
$775
5/13Mon
multi-stopJetBlue
12h 58mJAX-ONT
5/20Mon
multi-stopJetBlue
8h 43mONT-JAX
$821
5/11Sat
multi-stopJetBlue
12h 58mJAX-ONT
5/18Sat
multi-stopJetBlue
8h 43mONT-JAX
$840
5/15Wed
multi-stopAmerican Airlines
10h 16mJAX-ONT
5/18Sat
multi-stopAmerican Airlines
7h 12mONT-JAX
$936
5/15Wed
multi-stopAlaska Airlines
13h 27mJAX-ONT
5/18Sat
multi-stopAlaska Airlines
14h 21mONT-JAX
$949
5/11Sat
multi-stopDelta
7h 55mJAX-ONT
5/14Tue
multi-stopDelta
8h 21mONT-JAX
$1,008
5/13Mon
multi-stopAmerican Airlines
10h 16mJAX-ONT
5/14Tue
multi-stopAmerican Airlines
7h 12mONT-JAX
$1,013
5/11Sat
multi-stopAlaska Airlines
13h 42mJAX-ONT
5/18Sat
multi-stopAlaska Airlines
14h 21mONT-JAX
$1,079
5/12Sun
multi-stopDelta
7h 02mJAX-ONT
5/15Wed
multi-stopDelta
8h 40mONT-JAX
$1,917

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Jacksonville - Ontario Flights

Departure:

Jacksonville (undefined)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Jacksonville

Cabin classes: