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$211+ Cheap flights from Ontario to Jacksonville, NC (ONT - OAJ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Jacksonville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Jacksonville (OAJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$513
(Delta)

One-way from

$211
(Delta)

Popular in

November

Cheapest in

September

Average price

$392
From Ontario to Jacksonville Albert J Ellis
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One-way flight from Ontario to Jacksonville Albert J Ellis
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Highest demand for flights based on searches. 5% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Jacksonville

Cheapest flights from Ontario to Jacksonville
Explore the most affordable flight options available from Ontario to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:36 amONT - OAJ
1 stop8h 07mDelta
Sun 11/25:48 amOAJ - ONT
1 stop7h 38mDelta
Deal found 9/14$513
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:35 pmONT - OAJ
1 stop8h 17mAmerican Airlines
Mon 9/222:21 pmOAJ - ONT
1 stop10h 03mAmerican Airlines
Deal found 9/14$553
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2210:29 pmONT - OAJ
1 stop7h 06mAmerican Airlines
Sun 10/261:41 pmOAJ - ONT
1 stop9h 26mAmerican Airlines
Deal found 9/15$562
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:27 pmONT - OAJ
2 stops11h 27mAmerican Airlines
Sun 10/261:41 pmOAJ - ONT
1 stop9h 26mAmerican Airlines
Deal found 9/15$594
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:29 pmONT - OAJ
1 stop7h 06mAmerican Airlines
Sun 10/192:48 pmOAJ - ONT
1 stop8h 19mAmerican Airlines
Deal found 9/13$604

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Jacksonville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Ontario to Jacksonville that are best for you.

Fly from

Ontario

Fly to

Jacksonville

Route

Depart

Return

Price

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 10/30

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

Sun 11/2

5:48 am-10:26 am

1 stop7h 38m

$513

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 3/10

1:00 pm-10:14 pm

1 stop6h 14m

Jacksonville Albert J Ellis

Wed 3/11

5:40 am-11:38 am

1 stop8h 58m

$558

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 10/22

10:29 pm-8:35 am

1 stop7h 06m

Jacksonville Albert J Ellis

Sun 10/26

1:41 pm-8:07 pm

1 stop9h 26m

$562

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 10/23

7:27 pm-9:54 am

2 stops11h 27m

Jacksonville Albert J Ellis

Sun 10/26

1:41 pm-8:07 pm

1 stop9h 26m

$594

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 10/15

10:29 pm-8:35 am

1 stop7h 06m

Jacksonville Albert J Ellis

Sun 10/19

2:48 pm-8:07 pm

1 stop8h 19m

$604

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Mon 12/22

5:10 pm-10:27 am

2 stops14h 17m

$211

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Sun 12/21

10:29 pm-10:27 am

1 stop8h 58m

$289

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 12/23

4:45 pm-7:24 pm

2 stops23h 39m

$358

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Sat 9/20

11:55 am-9:48 pm

1 stop6h 53m

$387

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Mon 12/22

12:56 pm-11:59 pm

2 stops8h 03m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 11 results
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Best time to book a flight from Ontario to Jacksonville

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Jacksonville

What is the cheapest month to book a flight from Ontario to Jacksonville, North Carolina?

Currently, August is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $366). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $490). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Jacksonville

Get insights into the airlines that provide service to Jacksonville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Jacksonville. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from Ontario to Jacksonville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,956 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Jacksonville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Jacksonville, North Carolina?

    There are many flights that can get you from Ontario to Jacksonville, North Carolina in 7h 06m. Fly via Delta or American Airlines to get the fastest option. The distance between Ontario and Jacksonville, North Carolina is about 2262 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Jacksonville, North Carolina round-trip?

    Our cheapest airline available from Ontario to Jacksonville, North Carolina is American Airlines. Our recent data shows that you can find tickets from as low as $341 on this airline. An additional option worth looking into is Delta, starting at $402. You may be able to fly from Ontario to Jacksonville, North Carolina for 34% less than the average price by searching for these airlines.

  • Can I find deals for flights from Ontario to Jacksonville that include hotel bookings?

    Yes. In addition to deals on Ontario to Jacksonville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Jacksonville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Jacksonville.

  • Can I find deals for business class flights from Ontario to Jacksonville?

    Yes. Cheapflights offers flight deals from Ontario to Jacksonville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Jacksonville, North Carolina?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $366). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $490). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Ontario to Jacksonville

Discover the top 2 airlines that operate flights from Ontario to Jacksonville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$341Average$479FlexibilityNo cancel feeOn-time71%
DeltaCheapest$402Average$522FlexibilityNo cancel feeOn-timeN/A

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