JAX - ONT

$128 Find Cheap Flights from Jacksonville to Ontario - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$267
Typical prices: $397-$561
Delta
Sun 10/21Sun 10/28
JAX - ONT • 1 stop
Cheapest one-way
$128
Typical prices: $218-$452
Frontier
Sat 10/27
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
September
Cheapest • 19% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Charlotte Douglas (CLT)
Cheapest • Avg $347 (round-trip)
Dallas Love Field (DAL)
Shortest trip • 6h 25m (one-way)
Insights
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

Wed, Oct 21 - Wed, Oct 28
Delta Logo
5:10 am - 11:06 amJAX  Jacksonville-ONT Ontario
8h 56m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:16 pm - 9:39 pmONT  Ontario-JAX Jacksonville
6h 23m1 stop Atlanta Hartsfield-Jackson
$267Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
7:18 am - 11:06 amJAX  Jacksonville-ONT Ontario
6h 48m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:16 pm - 9:39 pmONT  Ontario-JAX Jacksonville
6h 23m1 stop Atlanta Hartsfield-Jackson
$267Delta
Tue, Oct 27 - Sat, Nov 7
American Airlines Logo
6:16 am - 11:53 amJAX  Jacksonville-ONT Ontario
8h 37m1 stop Dallas/Fort Worth
American Airlines Logo
12:42 pm - 10:30 pmONT  Ontario-JAX Jacksonville
6h 48m1 stop Dallas/Fort Worth
$291American Airlines
Tue, Oct 27 - Sat, Nov 7
United Airlines Logo
9:20 am - 6:01 pmJAX  Jacksonville-ONT Ontario
11h 41m2 stops Washington, D.C. Dulles Intl San Francisco
United Airlines Logo
7:00 am - 6:01 pmONT  Ontario-JAX Jacksonville
8h 01m1 stop Chicago O'Hare Intl
$296United Airlines
Fri, Oct 23 - Tue, Oct 27
American Airlines Logo
6:12 pm - 10:59 pmJAX  Jacksonville-ONT Ontario
7h 47m1 stop Charlotte Douglas
American Airlines Logo
7:00 am - 7:01 pmONT  Ontario-JAX Jacksonville
9h 01m1 stop Dallas/Fort Worth
$303American Airlines
Fri, Oct 16 - Tue, Oct 20
Frontier Logo
7:46 pm - 4:48 pmJAX  Jacksonville-ONT Ontario
24h 02m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
Frontier Logo
5:33 pm - 6:46 pmONT  Ontario-JAX Jacksonville
22h 13m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson
$309Frontier
Fri, Oct 16 - Fri, Oct 23
Frontier Logo
7:46 pm - 4:48 pmJAX  Jacksonville-ONT Ontario
24h 02m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
Frontier Logo
8:03 pm - 6:46 pmONT  Ontario-JAX Jacksonville
19h 43m2 stops Dallas/Fort Worth Atlanta Hartsfield-Jackson
$330Frontier
Sat, Oct 31 - Fri, Nov 6
Southwest Logo
5:30 am - 11:50 amJAX  Jacksonville-ONT Ontario
9h 20m1 stop Denver Intl
Southwest Logo
12:10 pm - 11:50 pmONT  Ontario-JAX Jacksonville
8h 40m2 stops Phoenix Sky Harbor Intl Houston Hobby
$339Southwest
Fri, Oct 23 - Tue, Oct 27
Southwest Logo
5:05 pm - 10:20 pmJAX  Jacksonville-ONT Ontario
8h 15m1 stop Denver Intl
Southwest Logo
5:40 am - 6:15 pmONT  Ontario-JAX Jacksonville
9h 35m2 stops Las Vegas Harry Reid Intl Denver Intl
$339Southwest
Wed, Oct 28 - Sun, Nov 8
United Airlines Logo
4:15 pm - 8:51 pmJAX  Jacksonville-ONT Ontario
7h 36m1 stop Denver Intl
United Airlines Logo
6:00 am - 4:38 pmONT  Ontario-JAX Jacksonville
7h 38m1 stop Houston George Bush Intcntl
$377United 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 from Jacksonville to Ontario with more confidence.

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

Round-trip flights from Jacksonville to Ontario start at $267. Prices are below average for this route right now, with typical round-trip fares ranging from $397 to $561. The lowest price found in the past 5 days was $267 on Delta.

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

Tuesday is the cheapest day of the week to fly from Jacksonville to Ontario, it is 4% cheaper than the average day. Monday is the most expensive day with flight prices 80% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•September is the cheapest month to fly from Jacksonville to Ontario at $381 round-trip.
•December ($748) and March ($526) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 96% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Jacksonville to Ontario flights

Low season

February

Cheapest flight

$128
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

    Only Economy Class is available on flights from Jacksonville to Ontario.

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

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

    • Dallas/Fort Worth (DFW) - 35% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 34% of one-stop connections
    • Denver Intl (DEN) - 14% of one-stop connections
    • Houston Hobby (HOU) - 5% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 47% on the Jacksonville to Ontario route. 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.

  • 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.

  • How long is a flight from Jacksonville to Ontario?

    A nonstop flight from Jacksonville to Ontario takes 0h 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 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 $169, which is 42% below the typical average for this route.

  • 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 36m via Houston Hobby (HOU) and 7h 10m via Denver Intl (DEN).

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

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

    Round-trip flights from Jacksonville to Ontario range from $397 to $561, with an average of $472 over the past 12 months. Anything below $397 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average $454 - about $396 less than Monday (47% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Jacksonville to Ontario trip for September. Fares historically average $381 round-trip in that month - typically $367 less than the most expensive month, which is December (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.
    - Azure Hotel & Suites, Trademark Collection by Wyndham
    - La Quinta Inn & Suites by Wyndham Ontario Airport
    - Ontario Airport Inn

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