Cheap Flight Tickets from Jacksonville (JAX) to Ontario (ONT), Starting at $137

Good to Know: Cheapest and Fastest JAX - ONT Flights

Useful information for finding best airline tickets from Jacksonville International to Ontario International on your next trip.

Cheapest Round Trip Flight

$268

WN Southwest Airlines • 1 stop • 22h 10m

Jul 22 – Jul 25

The cheapest round trip flight from Jacksonville to Ontario (JAX-ONT-JAX) is currently $268

🔍 Search Flights

Cheapest One way Flight

$137

WN Southwest Airlines • 1 stop • 20h 5m

Jul 22

The cheapest one way flight from Jacksonville to Ontario (JAX-ONT) is currently $137

🔍 Search Flights

Fastest Flight

10h 20m

The fastest nonstop flight from Jacksonville to Ontario (JAX-ONT) takes 10h 20m

Top Airlines Flying from Jacksonville to Ontario

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Jacksonville (JAX) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Jacksonville to Ontario. Ideal for travelers with confirmed return itineraries.

Jul 22 - Jul 25, Economy
WN
Jacksonville → Ontario
22h 10m
7:25 AM - 5:55 PM • 1 stop
WN
Jacksonville → Ontario
10h 45m
6:00 AM - 3:45 PM • 1 stop
$268
Southwest Airlines
Jul 22 - Jul 25, Economy
WN
Jacksonville → Ontario
17h 20m
2:55 PM - 10:35 PM • 1 stop
WN
Jacksonville → Ontario
10h 35m
2:20 PM - 11:55 PM • 1 stop
$268
Southwest Airlines
Jul 22 - Jul 25, Economy
WN
Jacksonville → Ontario
20h 5m
1:15 PM - 10:20 PM • 1 stop
WN
Jacksonville → Ontario
15h 40m
5:00 AM - 5:40 PM • 1 stop
$268
Southwest Airlines
Jul 23 - Jul 23, Economy
WN
Jacksonville → Ontario
17h 30m
1:15 PM - 9:05 PM • 1 stop
WN
Jacksonville → Ontario
17h 20m
11:55 PM - 1:35 PM • 2 stops
$271
Southwest Airlines
Jul 22 - Jul 25, Economy
WN
Jacksonville → Ontario
14h 5m
1:15 PM - 7:00 PM • 1 stop
WN
Jacksonville → Ontario
15h 40m
9:40 PM - 10:20 AM • 1 stop
$274
Southwest Airlines
Jul 23 - Jul 23, Economy
WN
Jacksonville → Ontario
23h 25m
6:55 AM - 6:00 PM • 3 stops
WN
Jacksonville → Ontario
15h 5m
11:55 PM - 12:00 PM • 1 stop
$289
Southwest Airlines

Fly from Jacksonville to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Jacksonville to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Jacksonville to Ontario Flights

What are the airports in Jacksonville?
JAX
What’s the most popular airline flying from JAX to ONT?
The most popular airline flying from Jacksonville to Ontario are
Can I fly from JAX to ONT non-stop?
NO
Which airlines fly nonstop between Jacksonville and Ontario?
The non-stop flights between Jacksonville and Ontario are .
What’s the earliest departure time from JAX to ONT Airport?
The earliest flight leaves JAX at 6:55 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Jacksonville to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from JAX to ONT?
Read the fare rules of the Jacksonville to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Jacksonville and Ontario?
operate flights between Jacksonville and Ontario
How long does a flight from Jacksonville to Ontario take?
It takes approximately 5 hour to fly non-stop from JAX to ONT, which is 2105.85 miles by air.
Which airlines provide the cheapest flights from Jacksonville (JAX) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from JAX were found on WN : USD 140
Do I need a passport to fly between JAX and ONT?
No
What’s the latest departure time from JAX to ONT ?
The last flight leaves JAX at 2:55 pm

Jacksonville (JAX) to Ontario (ONT): Airport Information

Origin Airport Jacksonville International , Jacksonville, US
Destination Airport Ontario International , Ontario, US
Distance 2106 miles

More Flight Options for Jacksonville (JAX) and Ontario (ONT)

Why Fareleaders for JAX to ONT Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Jacksonville to Ontario flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on JAX to ONT flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Jacksonville to Ontario flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Jacksonville (JAX) to Ontario (ONT)
Terms and Conditions*