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

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

What airlines fly to Jacksonville?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Jacksonville from Ontario according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Jacksonville. Keep in mind that there are 7 different airlines that fly to Jacksonville on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Ontario Airport to Jacksonville Airport were last updated today.

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

There are 4 operators available for flights from Ontario Airport to Jacksonville Airport as of February 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Jacksonville Airport.

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

The travel and health documents required for your trip to Jacksonville 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 Jacksonville Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$147 Cheap Flights from Ontario to Jacksonville in 2026

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Find the cheapest flights from Ontario to Jacksonville

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One-way

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Cheap round-trip flights

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10:15 pm - 8:47 am

ONT

JAX

7h 32m

1 stop

6:30 am - 11:36 am

JAX

ONT

8h 06m

1 stop

$311Delta

Wed, Apr 22 - Wed, Apr 29

10:25 pm - 10:18 am

ONT

JAX

8h 53m

1 stop

8:45 am - 4:28 pm

JAX

ONT

10h 43m

2 stops

$316Delta

Tue, Mar 17 - Wed, Mar 25

12:49 pm - 11:59 pm

ONT

JAX

8h 10m

1 stop

3:57 pm - 9:00 pm

JAX

ONT

8h 03m

1 stop

$332Delta

Wed, Apr 15 - Sat, Apr 18

5:55 pm - 8:47 am

ONT

JAX

11h 52m

2 stops

3:57 pm - 9:00 pm

JAX

ONT

8h 03m

1 stop

$337Delta

Wed, Apr 15 - Sat, Apr 25

2:08 pm - 11:44 pm

ONT

JAX

6h 36m

1 stop

7:48 pm - 11:46 pm

JAX

ONT

6h 58m

1 stop

$341American Airlines

Wed, Apr 29 - Mon, May 4

6:15 am - 3:34 pm

ONT

JAX

30h 19m

2 stops

9:39 am - 6:36 pm

JAX

ONT

11h 57m

1 stop

$347Multiple Airlines

Wed, Mar 25 - Sat, Mar 28

11:58 pm - 10:33 am

ONT

JAX

7h 35m

1 stop

7:45 pm - 11:59 pm

JAX

ONT

7h 14m

1 stop

$348American Airlines

Tue, Mar 24 - Mon, Mar 30

11:58 pm - 10:38 am

ONT

JAX

7h 40m

1 stop

5:00 am - 10:06 am

JAX

ONT

8h 06m

1 stop

$353American Airlines

Mon, Mar 23 - Sat, Mar 28

2:08 pm - 11:44 pm

ONT

JAX

6h 36m

1 stop

4:07 pm - 11:46 pm

JAX

ONT

10h 39m

2 stops

$355American Airlines

Wed, Apr 29 - Mon, May 4

11:58 pm - 12:03 pm

ONT

JAX

9h 05m

2 stops

5:00 am - 10:06 am

JAX

ONT

8h 06m

1 stop

$358American Airlines

Mon, Mar 23 - Sat, Mar 28

American Airlines flights from Ontario to Jacksonville

Our best American Airlines deals on Ontario to Jacksonville flight tickets

American Airlines

Apr 29

ONT2:08 pmOntario

6h 36m

1 stop

JAX11:44 pmJacksonville

May 4

JAX7:48 pmJacksonville

6h 58m

1 stop

ONT11:46 pmOntario

$341

American Airlines

Mar 24

ONT11:58 pmOntario

7h 35m

1 stop

JAX10:33 amJacksonville

Mar 30

JAX7:45 pmJacksonville

7h 14m

1 stop

ONT11:59 pmOntario

$348

American Airlines

Mar 23

ONT11:58 pmOntario

7h 40m

1 stop

JAX10:38 amJacksonville

Mar 28

JAX5:00 amJacksonville

8h 06m

1 stop

ONT10:06 amOntario

$353

United Airlines flights from Ontario to Jacksonville

Our best United Airlines deals on Ontario to Jacksonville flight tickets

United Airlines

Apr 9

ONT5:10 amOntario

13h 54m

2 stops

JAX10:04 pmJacksonville

Apr 15

JAX4:19 pmJacksonville

7h 17m

1 stop

ONT8:36 pmOntario

$365

United Airlines

May 13

ONT6:00 amOntario

7h 13m

1 stop

JAX4:13 pmJacksonville

Jun 2

JAX3:23 pmJacksonville

8h 19m

1 stop

ONT8:42 pmOntario

$374

United Airlines

May 13

ONT5:00 amOntario

12h 02m

2 stops

JAX8:02 pmJacksonville

Jun 2

JAX3:23 pmJacksonville

8h 19m

1 stop

ONT8:42 pmOntario

$379

Fly from

Fly to

Route

Depart

Return

Price

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 4/22

10:15 pm-8:47 am

1 stop7h 32m

Jacksonville

Wed 4/29

6:30 am-11:36 am

1 stop8h 06m

$311

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 3/17

10:25 pm-10:18 am

1 stop8h 53m

Jacksonville

Wed 3/25

8:45 am-4:28 pm

2 stops10h 43m

$316

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 4/15

12:49 pm-11:59 pm

1 stop8h 10m

Jacksonville

Sat 4/18

3:57 pm-9:00 pm

1 stop8h 03m

$332

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 4/15

5:55 pm-8:47 am

2 stops11h 52m

Jacksonville

Sat 4/25

3:57 pm-9:00 pm

1 stop8h 03m

$337

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 4/29

2:08 pm-11:44 pm

1 stop6h 36m

Jacksonville

Mon 5/4

7:48 pm-11:46 pm

1 stop6h 58m

$341

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 3/25

6:15 am-3:34 pm

2 stops30h 19m

Jacksonville

Sat 3/28

9:39 am-6:36 pm

1 stop11h 57m

$347

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 3/24

11:58 pm-10:33 am

1 stop7h 35m

Jacksonville

Mon 3/30

7:45 pm-11:59 pm

1 stop7h 14m

$348

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 3/23

11:58 pm-10:38 am

1 stop7h 40m

Jacksonville

Sat 3/28

5:00 am-10:06 am

1 stop8h 06m

$353

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 4/29

2:08 pm-11:44 pm

1 stop6h 36m

Jacksonville

Mon 5/4

4:07 pm-11:46 pm

2 stops10h 39m

$355

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 3/23

11:58 pm-12:03 pm

2 stops9h 05m

Jacksonville

Sat 3/28

5:00 am-10:06 am

1 stop8h 06m

$358

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 Ontario to Jacksonville

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 Jacksonville?

If you are unable to visit Jacksonville during the month of January, then departing from Ontario during the month July is also very affordable. Most momondo users find prices during this month for around $397.

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

According to our data, Thursday is the cheapest day to fly to Jacksonville from Ontario. The lowest ticket price found for a Thursday departure recently was $278. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Monday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $397.

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

Flying to Jacksonville from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $271 when looking at flights departing at noon. Flights to Jacksonville are more costly in the morning, with an average ticket price of $312. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Jacksonville from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Jacksonville for around $460 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jacksonville from Ontario for as low as $296 on momondo.

How have Ontario to Jacksonville flight prices changed over time?

As of February 2026, prices for Ontario to Jacksonville flights are approximately 34% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Jacksonville

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

Estimated round-trip price

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

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

Fastest flight time	6h 43m
Direct flights	None

The fastest flight from Ontario to Jacksonville takes 6h 43m

There are no direct flights from Ontario to Jacksonville. There are no popular flight routes from Ontario to Jacksonville.

Search flight deals

How far is Ontario to Jacksonville by plane?
The distance between Ontario and Jacksonville is about 2108.0 mi. By plane, this route typically takes 6h 43m.
When did momondo last update prices for flights from Ontario Airport to Jacksonville Airport?
Prices for flights from Ontario Airport to Jacksonville Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Jacksonville Airport?
There are 4 operators available for flights from Ontario Airport to Jacksonville Airport as of February 2026.
How old do you have to be to fly from Ontario Airport to Jacksonville Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Jacksonville Airport.
What documentation or ID do you need to fly to Jacksonville Airport?
The travel and health documents required for your trip to Jacksonville 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 Jacksonville 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 Ontario to Jacksonville?
Based on momondo bookings for flights between Ontario and Jacksonville, the leading airline is American Airlines, making up 49% of the total bookings. Other popular airlines include Delta with 20%, Southwest with 19%, and United Airlines with 12%.

Best airlines flying from Ontario to Jacksonville

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $306	Free Cancellation	Rating 7.2 11,339 reviews	Search American Airlines flights
Delta	PriceFrom $306	Free Cancellation	Rating 7.9 8,236 reviews	Search Delta flights
United Airlines	PriceFrom $330	Free Cancellation	Rating 7.4 9,342 reviews	Search United Airlines flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,300 reviews	Search Southwest flights

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Waycross

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Why use momondo?

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

It is quick and easy to find Ontario to Jacksonville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Jacksonville that suits you.

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

Flights from Ontario to Jacksonville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Ontario and Jacksonville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Jacksonville, momondo offers a useful price alert feature which will track prices for flights to Jacksonville from Ontario and alert you when they change.

An easier way to manage your Jacksonville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Ontario to Jacksonville from $147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Jacksonville departing on 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Ontario to Jacksonville

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American Airlines flights from Ontario to Jacksonville

Our best American Airlines deals on Ontario to Jacksonville flight tickets

United Airlines flights from Ontario to Jacksonville

Our best United Airlines deals on Ontario to Jacksonville flight tickets

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How to get the cheapest flight ticket from Ontario to Jacksonville

What is the cheapest month to fly to Jacksonville?

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

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

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

How have Ontario to Jacksonville flight prices changed over time?

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

What airlines fly to Jacksonville?

When to book flights from Ontario to Jacksonville

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

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

Fastest flight time

Direct flights

Best airlines flying from Ontario to Jacksonville

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

Traveling to a place near Jacksonville?

Why use momondo?

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

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

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

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

An easier way to manage your Jacksonville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Florida

Fly your favorite airline to Jacksonville

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Jacksonville

List of cabin classes available on flights landing in Jacksonville. Availability may vary depending on flight origin and airline.

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