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

Delta, Southwest, 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 41% 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 July 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.

$123 Cheap Flights from Ontario to Jacksonville in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Jacksonville

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 pm - 10:11 am

ONT

JAX

9h 11m

1 stop

6:00 am - 10:42 am

JAX

ONT

7h 42m

1 stop

$333Delta

Mon, Aug 17 - Thu, Aug 20

12:17 pm - 11:58 pm

ONT

JAX

8h 41m

1 stop

6:00 am - 11:05 am

JAX

ONT

8h 05m

1 stop

$359Delta

Sat, Sep 19 - Sat, Sep 26

12:17 pm - 11:58 pm

ONT

JAX

8h 41m

1 stop

7:15 am - 11:08 am

JAX

ONT

6h 53m

1 stop

$369Delta

Sat, Sep 19 - Sat, Oct 10

10:00 pm - 10:08 am

ONT

JAX

9h 08m

1 stop

5:34 pm - 10:24 pm

JAX

ONT

7h 50m

1 stop

$371Delta

Mon, Sep 14 - Mon, Sep 21

10:00 pm - 8:37 am

ONT

JAX

7h 37m

1 stop

6:00 am - 11:05 am

JAX

ONT

8h 05m

1 stop

$389Delta

Mon, Sep 21 - Sat, Sep 26

12:17 pm - 11:58 pm

ONT

JAX

8h 41m

1 stop

5:05 am - 11:08 am

JAX

ONT

9h 03m

1 stop

$399Delta

Sat, Sep 19 - Thu, Oct 15

12:00 pm - 11:55 pm

ONT

JAX

8h 55m

1 stop

4:27 pm - 9:52 pm

JAX

ONT

8h 25m

1 stop

$405Delta

Wed, Aug 19 - Sun, Aug 23

11:00 am - 9:45 pm

ONT

JAX

7h 45m

1 stop

12:25 pm - 8:05 pm

JAX

ONT

10h 40m

2 stops

$410Southwest

Fri, Sep 4 - Sat, Sep 12

10:00 pm - 8:37 am

ONT

JAX

7h 37m

1 stop

7:15 am - 11:05 am

JAX

ONT

6h 50m

1 stop

$418Delta

Sun, Sep 20 - Sat, Sep 26

12:00 pm - 11:55 pm

ONT

JAX

8h 55m

1 stop

7:05 am - 10:42 am

JAX

ONT

6h 37m

1 stop

$419Delta

Mon, Aug 10 - Sat, Aug 15

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Southwest flights from Ontario to Jacksonville

Our best Southwest deals on Ontario to Jacksonville flight tickets

Southwest

Sep 9

ONT7:25 amOntario

9h 20m

1 stop

JAX7:45 pmJacksonville

Sep 10

JAX2:00 pmJacksonville

9h 25m

1 stop

ONT8:25 pmOntario

$367

Southwest

Sep 8

ONT7:25 amOntario

6h 20m

1 stop

JAX4:45 pmJacksonville

Sep 9

JAX3:35 pmJacksonville

8h 25m

2 stops

ONT9:00 pmOntario

$372

Southwest

Jan 17

ONT6:45 amOntario

7h 00m

1 stop

JAX4:45 pmJacksonville

Jan 23

JAX6:40 amJacksonville

10h 45m

2 stops

ONT2:25 pmOntario

$410

American Airlines flights from Ontario to Jacksonville

Our best American Airlines deals on Ontario to Jacksonville flight tickets

American Airlines

Sep 2

ONT12:33 pmOntario

6h 43m

1 stop

JAX10:16 pmJacksonville

Sep 16

JAX9:06 amJacksonville

7h 19m

1 stop

ONT1:25 pmOntario

$470

American Airlines

Dec 23

ONT11:59 pmOntario

8h 32m

1 stop

JAX11:31 amJacksonville

Jan 1

JAX7:49 pmJacksonville

6h 57m

1 stop

ONT11:46 pmOntario

$471

American Airlines

Dec 23

ONT10:40 pmOntario

7h 03m

1 stop

JAX8:43 amJacksonville

Jan 1

JAX3:45 pmJacksonville

8h 13m

1 stop

ONT8:58 pmOntario

$476

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 8/17

10:00 pm-10:11 am

1 stop9h 11m

Jacksonville

Thu 8/20

6:00 am-10:42 am

1 stop7h 42m

$333

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Sat 9/19

12:17 pm-11:58 pm

1 stop8h 41m

Jacksonville

Sat 9/26

6:00 am-11:05 am

1 stop8h 05m

$359

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Sat 9/19

12:17 pm-11:58 pm

1 stop8h 41m

Jacksonville

Sat 10/10

7:15 am-11:08 am

1 stop6h 53m

$369

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 9/14

10:00 pm-10:08 am

1 stop9h 08m

Jacksonville

Mon 9/21

5:34 pm-10:24 pm

1 stop7h 50m

$371

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 9/21

10:00 pm-8:37 am

1 stop7h 37m

Jacksonville

Sat 9/26

6:00 am-11:05 am

1 stop8h 05m

$389

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Sat 9/19

12:17 pm-11:58 pm

1 stop8h 41m

Jacksonville

Thu 10/15

5:05 am-11:08 am

1 stop9h 03m

$399

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 8/19

12:00 pm-11:55 pm

1 stop8h 55m

Jacksonville

Sun 8/23

4:27 pm-9:52 pm

1 stop8h 25m

$405

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Fri 9/4

11:00 am-9:45 pm

1 stop7h 45m

Jacksonville

Sat 9/12

12:25 pm-8:05 pm

2 stops10h 40m

$410

Quickest round-trip

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Sun 9/20

10:00 pm-8:37 am

1 stop7h 37m

Jacksonville

Sat 9/26

7:15 am-11:05 am

1 stop6h 50m

$418

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 8/10

12:00 pm-11:55 pm

1 stop8h 55m

Jacksonville

Sat 8/15

7:05 am-10:42 am

1 stop6h 37m

$419

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 typical price of a round-trip flight between Ontario and Jacksonville?

Prices are currently low for flights on this route.

Typical prices usually range from $461 to $687.
The lowest price recently found on this route was $333.

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 June is also very affordable. Most momondo users find prices during this month for around $372.

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

According to our data, Friday is the cheapest day to fly to Jacksonville from Ontario. The lowest ticket price found for a Friday departure recently was $268. 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, Sunday 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 $398.

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 $278 when looking at flights departing at noon. Flights to Jacksonville are more costly in the morning, with an average ticket price of $361. 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 from Ontario 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 $477 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 $377 on momondo.

How have Ontario to Jacksonville flight prices changed over time?

As of July 2026, prices for Ontario to Jacksonville flights are approximately 70% 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 17m
Direct flights	None

The fastest flight from Ontario to Jacksonville takes 6h 17m

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

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Frequently asked questions about flying from Ontario to Jacksonville

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 17m.
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 July 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 47% of the total bookings. Other popular airlines include Southwest with 28%, United Airlines with 13%, and Delta 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
United Airlines	PriceFrom $330	Free Cancellation	Rating 7.4 10,026 reviews	Search United Airlines flights
American Airlines	PriceFrom $336	Free Cancellation	Rating 7.1 11,842 reviews	Search American Airlines flights
Delta	PriceFrom $342	Free Cancellation	Rating 7.8 8,481 reviews	Search Delta flights
Southwest	PriceFrom $350	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights

Fernandina Beach

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Orange Park

Kingsland

Waycross

Ponte Vedra Beach

Atlantic Beach

Neptune Beach

St Johns

Yulee

Cumberland Island

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

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Cheap flights from Ontario to Jacksonville from $123

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 9/2. 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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Southwest flights from Ontario to Jacksonville

Our best Southwest deals on Ontario to Jacksonville flight tickets

American Airlines flights from Ontario to Jacksonville

Our best American 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 typical price of a round-trip flight between Ontario and 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 from Ontario 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

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to Jacksonville

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?

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

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

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

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