ONT - JAX

$150 Find Cheap Flights from Ontario to Jacksonville - Compare and Save

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Everything you should know

Cheapest round-trip
$260
Typical prices: $382-$585
Frontier
Wed 11/14Fri 11/16
ONT - JAX • 2 stops
Cheapest one-way
$140
Typical prices: $216-$360
Frontier
Sun 11/4
ONT - JAX • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Jacksonville. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 21% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston Hobby (HOU)
Cheapest • Avg $417 (round-trip)
Houston George Bush Intcntl (IAH)
Shortest trip • 7h 19m (one-way)
Insights
Insights
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Flight Deals
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Flight Deals

Cheap Flights from Ontario to Jacksonville (ONT-JAX)

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

Recent round-trip flight deals from Ontario to Jacksonville

Sat, Nov 14 - Mon, Nov 16
Frontier Logo
6:25 am - 6:28 pmONT  Ontario-JAX Jacksonville
9h 03m2 stops Denver Intl Atlanta Hartsfield-Jackson
Frontier Logo
7:03 pm - 11:51 pmJAX  Jacksonville-ONT Ontario
31h 48m2 stops Atlanta Hartsfield-Jackson Denver Intl
$260Frontier
Sat, Nov 7 - Wed, Nov 11
Frontier Logo
6:25 am - 6:28 pmONT  Ontario-JAX Jacksonville
9h 03m2 stops Denver Intl Atlanta Hartsfield-Jackson
Frontier Logo
7:03 pm - 11:16 amJAX  Jacksonville-ONT Ontario
19h 13m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$274Frontier
Wed, Nov 18 - Wed, Dec 2
American Airlines Logo
10:30 am - 10:30 pmONT  Ontario-JAX Jacksonville
9h 00m1 stop Dallas/Fort Worth
American Airlines Logo
5:08 pm - 10:12 pmJAX  Jacksonville-ONT Ontario
8h 04m1 stop Charlotte Douglas
$377American Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
12:43 pm - 10:29 pmONT  Ontario-JAX Jacksonville
6h 46m1 stop Dallas/Fort Worth
American Airlines Logo
11:48 am - 6:44 pmJAX  Jacksonville-ONT Ontario
9h 56m1 stop Dallas/Fort Worth
$377American Airlines
Tue, Feb 16 - Mon, Feb 22
Southwest Logo
5:20 am - 4:05 pmONT  Ontario-JAX Jacksonville
7h 45m1 stop Chicago Midway
Southwest Logo
6:10 am - 10:10 amJAX  Jacksonville-ONT Ontario
7h 00m1 stop Houston Hobby
$377Southwest
Thu, Jan 14 - Mon, Jan 25
Southwest Logo
6:45 am - 4:45 pmONT  Ontario-JAX Jacksonville
7h 00m1 stop Chicago Midway
Southwest Logo
1:30 pm - 6:10 pmJAX  Jacksonville-ONT Ontario
7h 40m1 stop Chicago Midway
$377Southwest
Sat, Feb 20 - Tue, Mar 2
Delta Logo
7:00 am - 5:27 pmONT  Ontario-JAX Jacksonville
7h 27m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:05 pm - 10:14 pmJAX  Jacksonville-ONT Ontario
8h 09m1 stop Atlanta Hartsfield-Jackson
$377Delta
Thu, Feb 18 - Tue, Mar 2
Delta Logo
7:00 am - 5:27 pmONT  Ontario-JAX Jacksonville
7h 27m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:05 pm - 10:14 pmJAX  Jacksonville-ONT Ontario
8h 09m1 stop Atlanta Hartsfield-Jackson
$377Delta
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
5:00 am - 3:42 pmONT  Ontario-JAX Jacksonville
7h 42m1 stop Denver Intl
United Airlines Logo
11:35 am - 8:51 pmJAX  Jacksonville-ONT Ontario
12h 16m2 stops Houston George Bush Intcntl Denver Intl
$382United Airlines
Sun, Nov 15 - Thu, Nov 26
United Airlines Logo
6:00 am - 4:28 pmONT  Ontario-JAX Jacksonville
7h 28m1 stop Houston George Bush Intcntl
United Airlines Logo
9:42 am - 3:59 pmJAX  Jacksonville-ONT Ontario
9h 17m1 stop Chicago O'Hare Intl
$432United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Jacksonville flights

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

How much is a round-trip flight from Ontario to Jacksonville?

Round-trip flights from Ontario to Jacksonville typically range from $382 to $585. The lowest price found in the past 5 days was $260, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Ontario to Jacksonville. It’s 21% cheaper than the average day, while Saturday is the most expensive, with prices 24% higher.

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

•January is the cheapest month to fly from Ontario to Jacksonville at $368 round-trip.
•September ($612) and December ($582) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 66% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Ontario to Jacksonville flights

Low season

June

Cheapest flight

$140
Beat the crowds with an average 43% drop in travelers.
The most popular month to fly with an average 130% increase in travelers.
One-way flight from Ontario to Jacksonville

When to book flights from Ontario to Jacksonville

Are your dates flexible? Find out the best times to travel from Ontario to Jacksonville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Jacksonville 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 Ontario to Jacksonville?

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

    • Economy Class
    • Premium Economy Class
    • First Class

  • How long is a flight from Ontario to Jacksonville?

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

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

    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 Ontario to Jacksonville flight?

    Round-trip flights from Ontario to Jacksonville range from $382 to $585, with an average of $467 over the past 12 months. Anything below $382 counts as a good deal.

  • Have flight prices from Ontario to Jacksonville changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $260 to $2,235. That means the highest observed fare was about 9x higher than the lowest one.

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

    One-way fares from Ontario to Jacksonville are currently lower than usual. Average one-way flight prices are about $186, which is 31% below the typical average for this route.

  • What car rental options are available at Jacksonville Airport (JAX)?

    Jacksonville Airport (JAX) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:

    • Easirent
    • Hertz
    • Dollar
    • Budget
    • Thrifty

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

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

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

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

    • Dallas/Fort Worth (DFW) - 34% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 33% of one-stop connections
    • Denver Intl (DEN) - 8% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 36% on flights from Ontario to Jacksonville. Tuesday is the cheapest departure day at $373 round-trip on average, while Saturday is the most expensive at $582, a difference of $209.

    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 Ontario to Jacksonville?

    Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time at 7h 19m, compared with 7h 22m via Denver Intl (DEN) and 7h 25m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Ontario and Jacksonville?

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

  • What popular places can I visit in Jacksonville?

    Some of the most popular sights in Jacksonville are Mayo Clinic- Kinne Auditorium, EverBank Field and Veterans Memorial Arena. These are among the most viewed places in Jacksonville on KAYAK.

Your guide to booking Ontario to Jacksonville flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Ontario to Jacksonville

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

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