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$441+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$388
(Delta)

Popular in

May

Cheapest in

October

Average price

$361
Provider with most accurate pricing for Ontario-Jacksonville Albert J Ellis flight deals.
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Provider most trusted by Cheapflights users for Ontario-Jacksonville Albert J Ellis flights.
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From Ontario to Jacksonville Albert J Ellis
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Highest demand for flights based on searches. 14% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 16, 2025.

This Delta deal was found by Cheapflights users on 10/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2211:36 amONT - OAJ
1 stop8h 07mDelta
Tue 10/285:48 amOAJ - ONT
1 stop7h 38mDelta
Deal found 10/15$441
This American Airlines deal was found by Cheapflights users on 10/15. 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 10/2211:59 pmONT - OAJ
2 stops11h 24mAmerican Airlines
Tue 10/2810:19 amOAJ - ONT
2 stops11h 16mAmerican Airlines
Deal found 10/15$451
This American Airlines deal was found by Cheapflights users on 10/15. 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 11/199:59 amONT - OAJ
2 stops10h 03mAmerican Airlines
Sun 11/234:13 pmOAJ - ONT
1 stop7h 58mAmerican Airlines
Deal found 10/15$459
This American Airlines deal was found by Cheapflights users on 10/15. 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 11/1210:34 pmONT - OAJ
1 stop8h 59mAmerican Airlines
Mon 11/171:57 pmOAJ - ONT
1 stop8h 44mAmerican Airlines
Deal found 10/15$481
This Delta deal was found by Cheapflights users on 10/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1911:44 amONT - OAJ
1 stop7h 14mDelta
Sun 11/232:26 pmOAJ - ONT
1 stop8h 16mDelta
Deal found 10/15$483
This Delta deal was found by Cheapflights users on 10/14. 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.
Wed 11/1211:44 amONT - OAJ
1 stop7h 14mDelta
Mon 11/172:26 pmOAJ - ONT
2 stops12h 26mDelta
Deal found 10/14$493
This Delta deal was found by Cheapflights users on 10/14. 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.
Wed 10/2911:36 amONT - OAJ
1 stop8h 07mDelta
Sun 11/24:30 pmOAJ - ONT
1 stop8h 52mDelta
Deal found 10/14$496

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 October 16, 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

Wed 10/22

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

Tue 10/28

5:48 am-10:26 am

1 stop7h 38m

$441

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 10/22

11:59 pm-2:23 pm

2 stops11h 24m

Jacksonville Albert J Ellis

Tue 10/28

10:19 am-6:35 pm

2 stops11h 16m

$451

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 11/19

9:59 am-11:02 pm

2 stops10h 03m

Jacksonville Albert J Ellis

Sun 11/23

4:13 pm-9:11 pm

1 stop7h 58m

$459

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 11/19

11:44 am-9:58 pm

1 stop7h 14m

Jacksonville Albert J Ellis

Sun 11/23

2:26 pm-7:42 pm

1 stop8h 16m

$483

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 11/12

10:34 pm-10:33 am

1 stop8h 59m

Jacksonville Albert J Ellis

Mon 11/17

1:57 pm-9:59 pm

2 stops11h 02m

$486

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 11/12

11:44 am-9:58 pm

1 stop7h 14m

Jacksonville Albert J Ellis

Mon 11/17

2:26 pm-11:52 pm

2 stops12h 26m

$493

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 10/29

11:36 am-10:43 pm

1 stop8h 07m

Jacksonville Albert J Ellis

Sun 11/2

4:30 pm-10:22 pm

1 stop8h 52m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Compare providers for flights from Ontario to Jacksonville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Jacksonville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Jacksonville, North Carolina flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Jacksonville, North Carolina flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Jacksonville, North Carolina flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Jacksonville, North Carolina flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Jacksonville, North Carolina flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, November is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $178). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $341). 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 October 16, 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
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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
11,045 reviews
Delta
8.0
Very good
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

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 8h 07m. 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 $356. You may be able to fly from Ontario to Jacksonville, North Carolina for 29% 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, November is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $178). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $341). 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$341Average$439FlexibilityNo cancel feeOn-time71%
DeltaCheapest$356Average$500FlexibilityNo cancel feeOn-timeN/A

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