HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Jacksonville

$357+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Jacksonville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 20, 2026.

This Delta deal was found by Cheapflights users on 1/18. 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.
Fri 2/201:15 pm
ONT
-
OAJ
1 stop6h 20m
Delta
Wed 2/254:00 pm
OAJ
-
ONT
1 stop8h 05m
Delta
Deal found 1/18$357
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/1811:58 pm
ONT
-
OAJ
2 stops12h 48m
American Airlines
Wed 2/252:03 pm
OAJ
-
ONT
1 stop8h 42m
American Airlines
Deal found 1/20$362
This American Airlines deal was found by Cheapflights users on 1/19. 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 8/158:15 am
ONT
-
OAJ
2 stops10h 52m
American Airlines
Sat 8/292:41 pm
OAJ
-
ONT
1 stop9h 47m
American Airlines
Deal found 1/19$384
This Delta deal was found by Cheapflights users on 1/18. 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 2/231:15 pm
ONT
-
OAJ
1 stop6h 20m
Delta
Fri 2/272:15 pm
OAJ
-
ONT
1 stop9h 50m
Delta
Deal found 1/18$398
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 4/1711:59 pm
ONT
-
OAJ
2 stops10h 02m
American Airlines
Sat 5/25:10 am
OAJ
-
ONT
2 stops11h 08m
American Airlines
Deal found 1/19$419
This Delta deal was found by Cheapflights users on 1/18. 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 2/181:15 pm
ONT
-
OAJ
1 stop6h 20m
Delta
Mon 2/232:15 pm
OAJ
-
ONT
2 stops12h 34m
Delta
Deal found 1/18$432
This Delta deal was found by Cheapflights users on 1/19. 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 4/2512:39 pm
ONT
-
OAJ
1 stop7h 07m
Delta
Fri 5/111:58 am
OAJ
-
ONT
1 stop9h 30m
Delta
Deal found 1/19$449
This Delta deal was found by Cheapflights users on 1/18. 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.
Fri 2/131:15 pm
ONT
-
OAJ
1 stop6h 20m
Delta
Wed 2/184:00 pm
OAJ
-
ONT
1 stop8h 05m
Delta
Deal found 1/18$457
This Delta deal was found by Cheapflights users on 1/18. 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.
Fri 10/2310:59 pm
ONT
-
OAJ
1 stop9h 13m
Delta
Mon 10/2611:06 am
OAJ
-
ONT
1 stop10h 12m
Delta
Deal found 1/18$459
This American Airlines deal was found by Cheapflights users on 1/18. 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 2/811:59 pm
ONT
-
OAJ
2 stops10h 33m
American Airlines
Sat 2/144:11 pm
OAJ
-
ONT
1 stop8h 13m
American Airlines
Deal found 1/18$462

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$357
(Delta)

One-way from

$184
(American Airlines)

Popular in

May

Cheapest in

October

Average price

$576
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
One-way flight from Ontario to Jacksonville Albert J Ellis
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 20, 2026.
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

Mon 2/23

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Sat 2/28

5:36 am-12:02 pm

1 stop9h 26m

$357

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Fri 2/20

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Wed 2/25

4:00 pm-9:05 pm

1 stop8h 05m

$357

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 2/24

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Sat 2/28

5:36 am-12:02 pm

1 stop9h 26m

$357

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 2/19

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Tue 2/24

4:00 pm-9:05 pm

1 stop8h 05m

$357

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Fri 2/20

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Tue 2/24

4:00 pm-9:05 pm

1 stop8h 05m

$357

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 2/18

11:58 pm-3:46 pm

2 stops12h 48m

Jacksonville Albert J Ellis

Wed 2/25

2:03 pm-7:45 pm

1 stop8h 42m

$362

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 2/19

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Mon 2/23

2:15 pm-11:49 pm

2 stops12h 34m

$362

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Mon 2/23

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Fri 2/27

2:15 pm-9:05 pm

1 stop9h 50m

$398

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Fri 4/17

11:59 pm-1:01 pm

2 stops10h 02m

Jacksonville Albert J Ellis

Sat 5/2

5:10 am-1:18 pm

2 stops11h 08m

$419

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Wed 2/18

1:15 pm-10:35 pm

1 stop6h 20m

Jacksonville Albert J Ellis

Sun 2/22

2:15 pm-11:49 pm

2 stops12h 34m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Expedia the most. Expedia 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, January is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $153). Flying from Ontario to Jacksonville, North Carolina in March is currently the most expensive (average of $308). 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 January 20, 2026.
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
8,078 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
8,078 reviews
Delta
7.9
Good
8,078 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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
11,164 reviews
Delta
7.9
Good
8,078 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Food

7.2

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 20m. Fly via Delta to get the fastest option. The distance between Ontario and Jacksonville, North Carolina is about 2262 mi.

  • 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 59% 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, January is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $153). Flying from Ontario to Jacksonville, North Carolina in March is currently the most expensive (average of $308). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Jacksonville

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Raleigh flights
Los Angeles to Raleigh flights
Los Angeles to Charlotte flights
San Francisco to Charlotte flights
San Diego to Charlotte flights
Ontario to Raleigh flights
Los Angeles to Knoxville flights
Las Vegas to Raleigh flights
Ontario to Charlotte flights
Los Angeles to Norfolk flights
Las Vegas to Charlotte flights
Santa Ana to Charlotte flights
San Diego to Raleigh flights
Los Angeles to Myrtle Beach flights
San Francisco to Knoxville flights
Ontario to Norfolk flights
Sacramento to Norfolk flights
Ontario to Knoxville flights
Santa Ana to Asheville flights
Los Angeles to Asheville flights
San Diego to Norfolk flights
Sacramento to Charlotte flights
Santa Ana to Knoxville flights
San Francisco to Norfolk flights
San Francisco to Myrtle Beach flights
Fresno to Norfolk flights
San Diego to Knoxville flights
San Jose to Raleigh flights
Burbank to Charlotte flights
Santa Ana to Raleigh flights
Oakland to Raleigh flights
San Jose to Charlotte flights
Oakland to Charlotte flights
Los Angeles to Greensboro flights
Fresno to Raleigh flights
Sacramento to Raleigh flights
San Francisco to Asheville flights
San Francisco to Greensboro flights
Santa Ana to Norfolk flights
Sacramento to Knoxville flights
San Diego to Myrtle Beach flights
Los Angeles to Wilmington flights
San Diego to Asheville flights
San Jose to Knoxville flights
Ontario to Asheville flights
Sacramento to Greensboro flights
Las Vegas to Norfolk flights
Ontario to Myrtle Beach flights
San Diego to Wilmington flights
San Francisco to Wilmington flights

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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$203Average$490FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$341Average$508FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.