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$367+ Cheap flights from Ontario to Jacksonville, NC (ONT - OAJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$367
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$356
From Ontario to Jacksonville Albert J Ellis
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Highest demand for flights based on searches. 4% potential increase in price ($23 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 August 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 agosto 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/13. 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.
jue. 10/910:29 pmONT - OAJ
1 stop7h 06mAmerican Airlines
mié. 10/153:24 pmOAJ - ONT
1 stop9h 12mAmerican Airlines
Deal found 8/13$367
This Delta deal was found by Cheapflights users on 8/14. 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.
jue. 10/211:55 amONT - OAJ
1 stop7h 06mDelta
mié. 10/84:30 pmOAJ - ONT
1 stop8h 52mDelta
Deal found 8/14$377
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/3111:45 amONT - OAJ
1 stop7h 14mDelta
mié. 9/35:55 amOAJ - ONT
1 stop7h 40mDelta
Deal found 8/13$382
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/3111:45 amONT - OAJ
1 stop7h 14mDelta
jue. 9/44:30 pmOAJ - ONT
2 stops9h 10mDelta
Deal found 8/13$387
This Delta deal was found by Cheapflights users on 8/14. 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.
sáb. 10/1811:36 amONT - OAJ
1 stop8h 07mDelta
sáb. 10/255:48 amOAJ - ONT
1 stop7h 38mDelta
Deal found 8/14$397
This Delta deal was found by Cheapflights users on 8/14. 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.
mié. 10/111:55 amONT - OAJ
1 stop7h 06mDelta
mié. 10/84:30 pmOAJ - ONT
1 stop8h 52mDelta
Deal found 8/14$412
This Delta deal was found by Cheapflights users on 8/14. 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.
sáb. 10/411:55 amONT - OAJ
1 stop6h 53mDelta
mié. 10/84:30 pmOAJ - ONT
1 stop8h 52mDelta
Deal found 8/14$417
This American Airlines deal was found by Cheapflights users on 8/14. 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.
jue. 9/410:35 pmONT - OAJ
1 stop8h 17mAmerican Airlines
dom. 9/75:09 amOAJ - ONT
2 stops13h 56mAmerican Airlines
Deal found 8/14$453

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 agosto 14, 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

jue. 10/9

10:29 pm-8:35 am

1 stop7h 06m

Jacksonville Albert J Ellis

mié. 10/15

3:24 pm-9:36 pm

1 stop9h 12m

$367

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

jue. 10/2

11:55 am-10:01 pm

1 stop7h 06m

Jacksonville Albert J Ellis

mié. 10/8

4:30 pm-10:22 pm

1 stop8h 52m

$377

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

jue. 10/2

11:55 am-10:01 pm

1 stop7h 06m

Jacksonville Albert J Ellis

mar. 10/14

4:30 pm-10:22 pm

1 stop8h 52m

$377

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

dom. 8/31

11:45 am-9:59 pm

1 stop7h 14m

Jacksonville Albert J Ellis

mié. 9/3

5:55 am-10:35 am

1 stop7h 40m

$382

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

dom. 8/31

11:45 am-9:59 pm

1 stop7h 14m

Jacksonville Albert J Ellis

jue. 9/4

4:30 pm-10:40 pm

2 stops9h 10m

$387

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

sáb. 10/18

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

sáb. 10/25

5:48 am-10:26 am

1 stop7h 38m

$397

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

mar. 10/7

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

mar. 10/14

4:30 pm-10:22 pm

1 stop8h 52m

$412

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

mié. 10/1

11:55 am-10:01 pm

1 stop7h 06m

Jacksonville Albert J Ellis

mar. 10/14

4:30 pm-10:22 pm

1 stop8h 52m

$412

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

mié. 10/1

11:55 am-10:01 pm

1 stop7h 06m

Jacksonville Albert J Ellis

mié. 10/8

4:30 pm-10:22 pm

1 stop8h 52m

$412

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

mar. 10/7

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

mié. 10/8

4:30 pm-10:22 pm

1 stop8h 52m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 13 results
1
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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 agosto 14, 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
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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.

  • 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 32% 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.

See more FAQs

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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$341Average$446FlexibilityNo cancel feeOn-time71%
DeltaCheapest$402Average$496FlexibilityNo cancel feeOn-timeN/A

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