What airlines fly to Ontario?

American Airlines, Delta and Breeze Airways are the top three most popular airlines that fly to Ontario from Jacksonville according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Jacksonville to Ontario?

Frontier, American Airlines, and Delta are the most popular carriers operating from Jacksonville to Ontario

When did momondo last update prices for flights from Jacksonville Airport to Ontario Airport?

Prices for flights from Jacksonville Airport to Ontario Airport are updated daily.

How many operators does momondo search for flights from Jacksonville Airport to Ontario Airport?

As of August 2025, there are 3 operators available to choose from for flights from Jacksonville Airport to Ontario Airport.

How old do you have to be to fly from Jacksonville Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Jacksonville Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$116 Cheap Flights from Jacksonville to Ontario in 2025

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Find the cheapest flights from Jacksonville to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

11:37 am - 10:05 pmJAX-ONT

13h 28m2 stops

8:24 am - 6:09 pmONT-JAX

6h 45m1 stop

$254Frontier

Find Deal

Mon, Oct 27 - Fri, Oct 31

5:20 am - 10:35 amJAX-ONT

8h 15m1 stop

10:00 pm - 8:36 amONT-JAX

7h 36m1 stop

$297Delta

Find Deal

Tue, Sep 9 - Wed, Sep 24

7:18 am - 11:55 amJAX-ONT

7h 37m1 stop

10:54 am - 11:14 pmONT-JAX

9h 20m2 stops

$302American Airlines

Find Deal

Tue, Sep 9 - Wed, Sep 24

8:22 am - 6:16 pmJAX-ONT

12h 54m2 stops

8:15 am - 11:14 pmONT-JAX

11h 59m2 stops

$307American Airlines

Find Deal

Tue, Sep 9 - Wed, Sep 24

5:01 pm - 10:23 pmJAX-ONT

8h 22m1 stop

7:05 am - 4:03 pmONT-JAX

5h 58m1 stop

$313Delta

Find Deal

Tue, Sep 23 - Sat, Sep 27

3:55 pm - 10:50 pmJAX-ONT

9h 55m1 stop

6:20 am - 4:55 pmONT-JAX

7h 35m1 stop

$344Southwest

Find Deal

Mon, Oct 6 - Sun, Oct 12

5:00 pm - 11:40 pmJAX-ONT

9h 40m2 stops

6:20 am - 4:55 pmONT-JAX

7h 35m1 stop

$393Southwest

Find Deal

Mon, Oct 6 - Sun, Oct 12

4:55 pm - 9:52 pmJAX-ONT

7h 57m1 stop

6:02 am - 3:42 pmONT-JAX

6h 40m1 stop

$397United Airlines

Find Deal

Wed, Dec 31 - Tue, Jan 20

3:40 pm - 9:49 pmJAX-ONT

9h 09m1 stop

5:05 am - 9:48 pmONT-JAX

13h 43m2 stops

$402United Airlines

Find Deal

Wed, Dec 10 - Tue, Dec 16

11:25 am - 9:29 pmJAX-ONT

13h 04m1 stop

10:56 pm - 4:17 pmONT-JAX

14h 21m1 stop

$443JetBlue

Find Deal

Sat, Sep 6 - Sun, Sep 7

Delta flights from Jacksonville to Ontario

Our best Delta deals on Jacksonville to Ontario flight tickets

Delta

Sep 9

JAX5:20 amJacksonville

8h 15m

1 stop

ONT10:35 amOntario

Sep 24

ONT10:00 pmOntario

7h 36m

1 stop

JAX8:36 amJacksonville

$297

Find similar

Delta

Sep 23

JAX5:01 pmJacksonville

8h 22m

1 stop

ONT10:23 pmOntario

Sep 27

ONT7:05 amOntario

5h 58m

1 stop

JAX4:03 pmJacksonville

$313

Find similar

Delta

Sep 23

JAX2:30 pmJacksonville

12h 12m

2 stops

ONT11:42 pmOntario

Sep 27

ONT7:05 amOntario

8h 35m

1 stop

JAX6:40 pmJacksonville

$318

Find similar

Southwest flights from Jacksonville to Ontario

Our best Southwest deals on Jacksonville to Ontario flight tickets

Southwest

Oct 6

JAX3:55 pmJacksonville

9h 55m

1 stop

ONT10:50 pmOntario

Oct 12

ONT6:20 amOntario

7h 35m

1 stop

JAX4:55 pmJacksonville

$344

Find similar

Southwest

Oct 6

JAX5:00 pmJacksonville

9h 40m

2 stops

ONT11:40 pmOntario

Oct 12

ONT6:20 amOntario

7h 35m

1 stop

JAX4:55 pmJacksonville

$393

Find similar

Southwest

Nov 14

JAX6:15 amJacksonville

10h 20m

2 stops

ONT1:35 pmOntario

Nov 16

ONT1:05 pmOntario

7h 00m

1 stop

JAX11:05 pmJacksonville

$422

Find similar

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Mon 10/27

11:37 am-10:05 pm

2 stops13h 28m

Ontario

Fri 10/31

8:24 am-6:09 pm

1 stop6h 45m

$254

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Tue 9/9

5:20 am-10:35 am

1 stop8h 15m

Ontario

Wed 9/24

10:00 pm-8:36 am

1 stop7h 36m

$297

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Tue 9/9

7:18 am-11:55 am

1 stop7h 37m

Ontario

Wed 9/24

10:54 am-11:14 pm

2 stops9h 20m

$302

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Tue 9/9

8:22 am-6:16 pm

2 stops12h 54m

Ontario

Wed 9/24

8:15 am-11:14 pm

2 stops11h 59m

$307

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Tue 9/23

5:01 pm-10:23 pm

1 stop8h 22m

Ontario

Sat 9/27

7:05 am-4:03 pm

1 stop5h 58m

$313

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Mon 10/6

3:55 pm-10:50 pm

1 stop9h 55m

Ontario

Sun 10/12

6:20 am-4:55 pm

1 stop7h 35m

$344

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Mon 10/6

5:00 pm-11:40 pm

2 stops9h 40m

Ontario

Sun 10/12

6:20 am-4:55 pm

1 stop7h 35m

$393

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 12/31

4:55 pm-9:52 pm

1 stop7h 57m

Ontario

Tue 1/20

6:02 am-3:42 pm

1 stop6h 40m

$397

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 12/10

3:40 pm-9:49 pm

1 stop9h 09m

Ontario

Tue 12/16

5:05 am-9:48 pm

2 stops13h 43m

$402

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Sat 9/6

11:25 am-9:29 pm

1 stop13h 04m

Ontario

Sun 9/7

10:56 pm-4:17 pm

1 stop14h 21m

$443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Jacksonville to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, April is the cheapest month to fly from Jacksonville to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $348. If you aren’t able to travel during the month of April, then book flights to Ontario from Jacksonville during May instead. Flights to Ontario in May, while not as cheap as those in April, still average around $392.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $376. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Jacksonville to Ontario for around $642.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Jacksonville to Ontario when you can find flight prices for as low as $393. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $537 on average. Flights to Ontario from Jacksonville in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Ontario from Jacksonville when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $470 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Jacksonville for as low as $320 on momondo.

How have Jacksonville to Ontario flight prices changed over time?

As of August 2025, prices for Jacksonville to Ontario flights are approximately 50% more expensive when compared to flights at the same time last year.

When to book flights from Jacksonville to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Jacksonville to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Jacksonville to Ontario (JAX to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Jacksonville to Ontario

Best Price Found	$116
Fastest flight time	6h 15m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Jacksonville in the past 72 hours is $116. The best round-trip flight deal from Jacksonville to Ontario found on momondo in the last 72 hours is $254.

The fastest flight from Jacksonville to Ontario takes 6h 15m

There are no direct flights from Jacksonville to Ontario. Popular non-direct route for this connection is Jacksonville Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

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How far is Jacksonville to Ontario by plane?
The straight-line distance from Jacksonville to Ontario is 2108.0 mi. Flights usually cover this in 7h 15m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Jacksonville Airport to Ontario Airport?
Prices for flights from Jacksonville Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Jacksonville Airport to Ontario Airport?
As of August 2025, there are 3 operators available to choose from for flights from Jacksonville Airport to Ontario Airport.
How old do you have to be to fly from Jacksonville Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Jacksonville Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Jacksonville to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Jacksonville to Ontario is American Airlines (53% of total bookings). The next most popular airlines are Southwest (30%) and Delta (18%).

Best airlines flying from Jacksonville to Ontario

Compare and see reviews for airlines that fly from Jacksonville to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $204	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $311	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $351	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Jacksonville to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Jacksonville.

Can I find flights from Jacksonville to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Jacksonville on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Jacksonville to Ontario?

Once you have performed a search for Jacksonville to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Jacksonville to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Jacksonville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.