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$379+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Ontario to Jacksonville

Best flights from Ontario to Jacksonville
Discover carefully curated flight deals from Ontario to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This Delta deal was found by Cheapflights users on 12/27. 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.
Sat 4/1812:39 pmONT - OAJ
1 stop7h 07mDelta
Sat 5/23:35 pmOAJ - ONT
1 stop8h 23mDelta
Deal found 12/27$379
This American Airlines deal was found by Cheapflights users on 12/27. 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.
Sat 4/1811:04 pmONT - OAJ
1 stop6h 17mAmerican Airlines
Sat 5/29:02 amOAJ - ONT
2 stops11h 44mAmerican Airlines
Deal found 12/27$384
This Delta deal was found by Cheapflights users on 12/27. 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.
Tue 4/712:50 pmONT - OAJ
1 stop6h 43mDelta
Sat 4/114:40 pmOAJ - ONT
1 stop7h 24mDelta
Deal found 12/27$379
This Delta deal was found by Cheapflights users on 12/27. 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.
Tue 4/712:50 pmONT - OAJ
1 stop6h 43mDelta
Sun 4/122:21 pmOAJ - ONT
1 stop9h 43mDelta
Deal found 12/27$419
This American Airlines deal was found by Cheapflights users on 12/26. 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.
Sun 5/311:04 pmONT - OAJ
1 stop6h 17mAmerican Airlines
Sat 5/92:17 pmOAJ - ONT
1 stop9h 01mAmerican Airlines
Deal found 12/26$483
This Delta deal was found by Cheapflights users on 12/27. 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.
Tue 4/712:50 pmONT - OAJ
1 stop6h 43mDelta
Fri 4/106:51 pmOAJ - ONT
1 stop19h 49mDelta
Deal found 12/27$533
This Delta deal was found by Cheapflights users on 12/27. 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.
Sun 4/510:25 pmONT - OAJ
1 stop12h 15mDelta
Sat 4/114:40 pmOAJ - ONT
1 stop7h 24mDelta
Deal found 12/27$533
This Delta deal was found by Cheapflights users on 12/27. 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.
Mon 4/610:25 pmONT - OAJ
1 stop12h 15mDelta
Sun 4/122:21 pmOAJ - ONT
1 stop9h 43mDelta
Deal found 12/27$573

Find 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$379
(Delta)

Popular in

May

Cheapest in

October

Average price

$594
Provider with most accurate pricing for Ontario-Jacksonville Albert J Ellis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Jacksonville Albert J Ellis flights.
Search Deals
From Ontario to Jacksonville Albert J Ellis
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 28, 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

Sat 4/18

12:39 pm-10:46 pm

1 stop7h 07m

Jacksonville Albert J Ellis

Sat 5/2

3:35 pm-8:58 pm

1 stop8h 23m

$379

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 4/7

12:50 pm-10:33 pm

1 stop6h 43m

Jacksonville Albert J Ellis

Sat 4/11

4:40 pm-9:04 pm

1 stop7h 24m

$379

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Sat 4/18

11:04 pm-8:21 am

1 stop6h 17m

Jacksonville Albert J Ellis

Sat 5/2

9:02 am-5:46 pm

2 stops11h 44m

$384

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 4/7

12:50 pm-10:33 pm

1 stop6h 43m

Jacksonville Albert J Ellis

Sun 4/12

2:21 pm-9:04 pm

1 stop9h 43m

$419

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Sun 5/3

11:04 pm-8:21 am

1 stop6h 17m

Jacksonville Albert J Ellis

Sat 5/9

2:17 pm-8:18 pm

1 stop9h 01m

$483

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 4/7

12:50 pm-10:33 pm

1 stop6h 43m

Jacksonville Albert J Ellis

Fri 4/10

6:51 pm-11:40 am

1 stop19h 49m

$533

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Sun 4/5

10:25 pm-1:40 pm

1 stop12h 15m

Jacksonville Albert J Ellis

Sat 4/11

4:40 pm-9:04 pm

1 stop7h 24m

$533

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Mon 4/6

10:25 pm-1:40 pm

1 stop12h 15m

Jacksonville Albert J Ellis

Sun 4/12

2:21 pm-9:04 pm

1 stop9h 43m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Jacksonville, North Carolina flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $347). 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 December 28, 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
7.9
Good
8,019 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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
7.9
Good
8,019 reviews
Delta
7.9
Good
8,019 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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
11,072 reviews
Delta
7.9
Good
8,019 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

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 6h 17m. 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 Delta. Our recent data shows that you can find tickets from as low as $203 on this airline. An additional option worth looking into is American Airlines, starting at $341. You may be able to fly from Ontario to Jacksonville, North Carolina for 58% 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 $347). 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$341Average$536FlexibilityNo cancel feeOn-time71%
DeltaCheapest$348Average$495FlexibilityNo cancel feeOn-timeN/A

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