JAX - ONT

$104 Find Cheap Flights from Jacksonville to Ontario - Compare and Save

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Everything you should know

Cheapest round-trip
$229
Typical prices: $399-$560
Frontier
Fri 12/14Fri 1/12
JAX - ONT • 2 stops
Cheapest one-way
$104
Typical prices: $238-$381
Frontier
Tue 12/11
JAX - ONT • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Jacksonville and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 18% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston Hobby (HOU)
Cheapest • Avg $395 (round-trip)
Dallas Love Field (DAL)
Shortest trip • 6h 25m (one-way)
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Insights
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We hope you love your trip to Ontario!
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Flight Deals

Cheap Flights from Jacksonville to Ontario (JAX-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Ontario

Mon, Dec 14 - Tue, Jan 12
Multiple Airlines Logo
5:47 pm - 10:17 pmJAX  Jacksonville-ONT Ontario
31h 30m2 stops Atlanta Hartsfield-Jackson Denver Intl
Multiple Airlines Logo
6:27 pm - 8:07 pmONT  Ontario-JAX Jacksonville
22h 40m1 stop Las Vegas Harry Reid Intl
$229Multiple Airlines
Wed, Dec 9 - Sun, Dec 13
Frontier Logo
3:39 pm - 10:17 pmJAX  Jacksonville-ONT Ontario
9h 38m2 stops Atlanta Hartsfield-Jackson Denver Intl
Frontier Logo
11:30 am - 5:02 pmONT  Ontario-JAX Jacksonville
26h 32m2 stops Denver Intl Atlanta Hartsfield-Jackson
$258Frontier
Wed, Nov 25 - Thu, Dec 3
American Airlines Logo
7:15 am - 3:35 pmJAX  Jacksonville-ONT Ontario
11h 20m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
1:27 pm - 10:55 pmONT  Ontario-JAX Jacksonville
6h 28m1 stop Phoenix Sky Harbor Intl
$335American Airlines
Fri, Dec 4 - Fri, Dec 11
American Airlines Logo
7:49 pm - 11:48 pmJAX  Jacksonville-ONT Ontario
6h 59m1 stop Dallas/Fort Worth
American Airlines Logo
1:02 pm - 10:51 pmONT  Ontario-JAX Jacksonville
6h 49m1 stop Dallas/Fort Worth
$365American Airlines
Thu, Jan 21 - Wed, Jan 27
Delta Logo
4:06 pm - 9:43 pmJAX  Jacksonville-ONT Ontario
8h 37m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 6:54 pmONT  Ontario-JAX Jacksonville
8h 49m1 stop Atlanta Hartsfield-Jackson
$377Delta
Wed, Jan 20 - Fri, Jan 29
Delta Logo
6:30 am - 11:55 amJAX  Jacksonville-ONT Ontario
8h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:09 pm - 10:54 pmONT  Ontario-JAX Jacksonville
6h 45m1 stop Atlanta Hartsfield-Jackson
$377Delta
Tue, Jan 19 - Fri, Jan 29
Southwest Logo
6:30 am - 1:25 pmJAX  Jacksonville-ONT Ontario
9h 55m2 stops Nashville Intl Phoenix Sky Harbor Intl
Southwest Logo
8:10 am - 6:30 pmONT  Ontario-JAX Jacksonville
7h 20m1 stop Austin Bergstrom
$382Southwest
Tue, Jan 19 - Fri, Jan 29
Southwest Logo
2:55 pm - 8:25 pmJAX  Jacksonville-ONT Ontario
8h 30m2 stops Austin Bergstrom Las Vegas Harry Reid Intl
Southwest Logo
10:50 am - 11:40 pmONT  Ontario-JAX Jacksonville
9h 50m2 stops Las Vegas Harry Reid Intl Denver Intl
$387Southwest
Thu, Jan 14 - Tue, Jan 19
United Airlines Logo
5:26 pm - 10:15 pmJAX  Jacksonville-ONT Ontario
7h 49m1 stop Houston George Bush Intcntl
United Airlines Logo
5:00 am - 3:04 pmONT  Ontario-JAX Jacksonville
7h 04m1 stop Denver Intl
$393United Airlines
Mon, Jan 25 - Wed, Feb 3
United Airlines Logo
5:26 pm - 10:15 pmJAX  Jacksonville-ONT Ontario
7h 49m1 stop Houston George Bush Intcntl
United Airlines Logo
6:00 am - 6:01 pmONT  Ontario-JAX Jacksonville
9h 01m1 stop Houston George Bush Intcntl
$393United Airlines
Booking Insights

Price, demand and travel trends for Jacksonville to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Jacksonville to Ontario. It’s 5% cheaper than the average day, while Monday is the most expensive, with prices 79% higher.

What’s the cheapest month to fly from Jacksonville to Ontario?

•October is the cheapest month to fly from Jacksonville to Ontario at $387 round-trip.
•November ($976) and December ($748) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 152% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Jacksonville to Ontario flights

Low season

February

Cheapest flight

$104
Beat the crowds with an average 74% drop in travelers.
The most popular month to fly with an average 113% increase in travelers.
One-way 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

Your Jacksonville to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Jacksonville to Ontario?

    Two cabin classes are available on flights from Jacksonville to Ontario:

    • Economy Class
    • First Class

  • How long is a flight from Jacksonville to Ontario?

    A nonstop flight from Jacksonville to Ontario takes 00m, covering 2,100 miles.

  • Do I need a passport to fly from Jacksonville to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Jacksonville to Ontario flight?

    Round-trip flights from Jacksonville to Ontario range from $399 to $560, with an average of $474 over the past 12 months. Anything below $399 counts as a good deal.

  • How are flight prices from Jacksonville to Ontario looking right now?

    One-way fares from Jacksonville to Ontario are currently lower than usual. Average one-way flight prices are about $178, which is 39% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Jacksonville to Ontario?

    Flights from Jacksonville to Ontario usually depart from Jacksonville (JAX) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Jacksonville to Ontario pass through?

    One-stop flights from Jacksonville to Ontario most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 39% of one-stop connections
    • Dallas/Fort Worth (DFW) - 32% of one-stop connections
    • Denver Intl (DEN) - 12% of one-stop connections
    • Houston Hobby (HOU) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Jacksonville to Ontario?

    Yes. Flexible dates can save you up to 47% on flights from Jacksonville to Ontario. Tuesday is the cheapest departure day at $454 round-trip on average, while Monday is the most expensive at $850, a difference of $396.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Jacksonville to Ontario?

    Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 6h 25m, compared with 6h 47m via Houston Hobby (HOU) and 7h 02m via Dallas/Fort Worth (DFW).

  • What is the time difference between Jacksonville and Ontario?

    Ontario is 3 hours behind Jacksonville (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Jacksonville to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $454, about $396 less than Monday fares (47% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Jacksonville to Ontario trip for October. Fares historically average $387 round-trip in that month - typically $589 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • Holiday Inn Ontario Airport By IHG

More options for your flight from Jacksonville to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario