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 46% 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.

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

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

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 January 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.

$151 Cheap Flights from Ontario to Jacksonville in 2026

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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.

6:50 am - 4:50 pm

ONT

JAX

7h 00m1 stop

5:50 am - 10:20 am

JAX

ONT

7h 30m1 stop

$287Southwest

Tue, Jan 20 - Wed, Jan 28

6:50 am - 4:50 pm

ONT

JAX

7h 00m1 stop

5:50 am - 12:15 pm

JAX

ONT

9h 25m2 stops

$292Southwest

Tue, Jan 20 - Wed, Jan 28

7:15 am - 6:33 pm

ONT

JAX

32h 18m2 stops

9:39 am - 9:18 am

JAX

ONT

26h 39m1 stop

$303Multiple Airlines

Tue, Jan 27 - Sat, Jan 31

3:07 pm - 7:59 pm

ONT

JAX

25h 52m1 stop

9:39 am - 9:18 am

JAX

ONT

26h 39m1 stop

$325Multiple Airlines

Tue, Jan 27 - Sat, Jan 31

10:58 am - 10:57 pm

ONT

JAX

8h 59m1 stop

11:21 am - 5:22 pm

JAX

ONT

9h 01m1 stop

$328American Airlines

Wed, Feb 4 - Mon, Feb 9

10:58 am - 11:59 pm

ONT

JAX

10h 01m2 stops

4:41 pm - 10:48 pm

JAX

ONT

9h 07m1 stop

$333American Airlines

Wed, Feb 4 - Mon, Feb 9

12:57 pm - 11:05 pm

ONT

JAX

7h 08m1 stop

6:11 am - 12:03 pm

JAX

ONT

8h 52m1 stop

$335American Airlines

Mon, Feb 2 - Mon, Feb 9

11:59 pm - 1:49 pm

ONT

JAX

10h 50m2 stops

11:21 am - 5:22 pm

JAX

ONT

9h 01m1 stop

$340American Airlines

Mon, Feb 2 - Mon, Feb 9

9:59 am - 11:59 pm

ONT

JAX

11h 00m2 stops

2:42 pm - 10:48 pm

JAX

ONT

11h 06m2 stops

$345American Airlines

Tue, Jan 20 - Wed, Jan 28

5:55 am - 6:10 pm

ONT

JAX

9h 15m2 stops

12:55 pm - 8:30 pm

JAX

ONT

10h 35m2 stops

$346Southwest

Wed, Feb 4 - Mon, Feb 9

Southwest flights from Ontario to Jacksonville

Our best Southwest deals on Ontario to Jacksonville flight tickets

Southwest

Jan 20

ONT6:50 amOntario

7h 00m

1 stop

JAX4:50 pmJacksonville

Jan 28

JAX5:50 amJacksonville

7h 30m

1 stop

ONT10:20 amOntario

$287

Find similar

Southwest

Jan 20

ONT6:50 amOntario

7h 00m

1 stop

JAX4:50 pmJacksonville

Jan 28

JAX5:50 amJacksonville

9h 25m

2 stops

ONT12:15 pmOntario

$292

Find similar

Southwest

Feb 2

ONT5:55 amOntario

9h 15m

2 stops

JAX6:10 pmJacksonville

Feb 7

JAX6:00 amJacksonville

7h 20m

1 stop

ONT10:20 amOntario

$356

Find similar

Delta flights from Ontario to Jacksonville

Our best Delta deals on Ontario to Jacksonville flight tickets

Delta

Jan 28

ONT12:41 pmOntario

6h 25m

1 stop

JAX10:06 pmJacksonville

Feb 11

JAX6:30 amJacksonville

8h 01m

1 stop

ONT11:31 amOntario

$321

Find similar

Delta

Feb 2

ONT10:30 pmOntario

8h 47m

1 stop

JAX10:17 amJacksonville

Feb 9

JAX5:30 amJacksonville

9h 46m

2 stops

ONT12:16 pmOntario

$340

Find similar

Delta

Jan 28

ONT12:41 pmOntario

6h 25m

1 stop

JAX10:06 pmJacksonville

Jan 31

JAX3:41 pmJacksonville

8h 24m

1 stop

ONT9:05 pmOntario

$344

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 1/20

6:50 am-4:50 pm

1 stop7h 00m

Jacksonville

Wed 1/28

5:50 am-10:20 am

1 stop7h 30m

$287

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 1/20

6:50 am-4:50 pm

1 stop7h 00m

Jacksonville

Wed 1/28

5:50 am-12:15 pm

2 stops9h 25m

$292

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 1/27

7:15 am-6:33 pm

2 stops32h 18m

Jacksonville

Sat 1/31

9:39 am-9:18 am

1 stop26h 39m

$303

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 1/27

3:07 pm-7:59 pm

1 stop25h 52m

Jacksonville

Sat 1/31

9:39 am-9:18 am

1 stop26h 39m

$325

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 2/4

10:58 am-10:57 pm

1 stop8h 59m

Jacksonville

Mon 2/9

11:21 am-5:22 pm

1 stop9h 01m

$328

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 2/4

10:58 am-11:59 pm

2 stops10h 01m

Jacksonville

Mon 2/9

4:41 pm-10:48 pm

1 stop9h 07m

$333

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 2/2

12:57 pm-11:05 pm

1 stop7h 08m

Jacksonville

Mon 2/9

6:11 am-12:03 pm

1 stop8h 52m

$335

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Mon 2/2

11:59 pm-1:49 pm

2 stops10h 50m

Jacksonville

Mon 2/9

11:21 am-5:22 pm

1 stop9h 01m

$340

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Tue 1/20

9:59 am-11:59 pm

2 stops11h 00m

Jacksonville

Wed 1/28

2:42 pm-10:48 pm

2 stops11h 06m

$345

OntarioJacksonville

ONT - JAX

ONTJAX

Ontario

Wed 2/4

5:55 am-6:10 pm

2 stops9h 15m

Jacksonville

Mon 2/9

12:55 pm-8:30 pm

2 stops10h 35m

$346

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, Tuesday is the cheapest day to fly to Jacksonville from Ontario. The lowest ticket price found for a Tuesday departure recently was $163. 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 $388.

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 $314. 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 $452 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 January 2026, prices for Ontario to Jacksonville flights are approximately 31% 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 15m
Direct flights	None

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

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 15m.
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 January 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 51% of the total bookings. Other popular airlines include Delta with 23%, Southwest with 18%, and United Airlines with 9%.

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 11,088 reviews	Search American Airlines flights
Delta	PriceFrom $326	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $360	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights

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Orange Park

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Ponte Vedra Beach

Waycross

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.