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$279+ Cheap flights from Jacksonville, NC to Ontario (OAJ - ONT)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
OAJ — ONT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Jacksonville to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (OAJ) to Ontario (ONT). 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 16, 2025.

Round-trip from

$357
(American Airlines)

One-way from

$279
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$416
From Jacksonville Albert J Ellis to Ontario
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One-way flight from Jacksonville Albert J Ellis to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($43 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 Jacksonville to Ontario

Cheapest flights from Jacksonville to Ontario
Explore the most affordable flight options available from Jacksonville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

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.
Sat 10/181:41 pmOAJ - ONT
1 stop9h 26mAmerican Airlines
Tue 10/2810:29 pmONT - OAJ
1 stop8h 25mAmerican Airlines
Deal found 9/14$357
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.
Sat 11/810:59 amOAJ - ONT
2 stops10h 21mAmerican Airlines
Tue 11/1110:34 pmONT - OAJ
1 stop9h 34mAmerican Airlines
Deal found 9/14$462
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.
Sat 11/85:48 amOAJ - ONT
1 stop7h 38mDelta
Tue 11/1110:25 pmONT - OAJ
1 stop12h 21mDelta
Deal found 9/14$482
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.
Sat 11/85:48 amOAJ - ONT
1 stop7h 38mDelta
Mon 11/1011:45 amONT - OAJ
1 stop7h 13mDelta
Deal found 9/14$488
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.
Fri 11/74:30 pmOAJ - ONT
1 stop8h 52mDelta
Tue 11/1110:25 pmONT - OAJ
1 stop9h 45mDelta
Deal found 9/14$513
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.
Fri 11/74:30 pmOAJ - ONT
1 stop8h 52mDelta
Mon 11/1011:45 amONT - OAJ
1 stop7h 13mDelta
Deal found 9/14$519
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.
Tue 12/166:10 amOAJ - ONT
2 stops12h 51mAmerican Airlines
Wed 12/2411:59 pmONT - OAJ
1 stop7h 24mAmerican Airlines
Deal found 9/15$546
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.
Sat 11/810:59 amOAJ - ONT
2 stops10h 21mAmerican Airlines
Mon 11/1010:34 pmONT - OAJ
1 stop9h 34mAmerican Airlines
Deal found 9/14$559
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.
Tue 12/166:10 amOAJ - ONT
2 stops12h 51mAmerican Airlines
Tue 12/2312:56 pmONT - OAJ
2 stops8h 03mAmerican Airlines
Deal found 9/15$584

Cheapflights Fare Finder

 
Customize your flight search to find flights from Jacksonville to Ontario 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 16, 2025.
Use the filters below to find and compare flights from Jacksonville to Ontario that are best for you.

Fly from

Jacksonville

Fly to

Ontario

Route

Depart

Return

Price

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Sat 10/18

1:41 pm-8:07 pm

1 stop9h 26m

Ontario

Tue 10/28

10:29 pm-9:54 am

1 stop8h 25m

$357

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Wed 2/25

5:40 am-11:38 am

1 stop8h 58m

Ontario

Sat 2/28

1:00 pm-10:14 pm

1 stop6h 14m

$433

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Sat 11/8

10:59 am-6:20 pm

2 stops10h 21m

Ontario

Tue 11/11

10:34 pm-11:08 am

1 stop9h 34m

$462

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Sat 11/8

5:48 am-10:26 am

1 stop7h 38m

Ontario

Tue 11/11

10:25 pm-1:46 pm

1 stop12h 21m

$482

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Wed 2/25

2:17 pm-8:24 pm

1 stop9h 07m

Ontario

Sat 2/28

8:04 pm-8:29 am

2 stops9h 25m

$484

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Sat 11/8

5:48 am-10:26 am

1 stop7h 38m

Ontario

Mon 11/10

11:45 am-9:58 pm

1 stop7h 13m

$488

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Fri 11/7

4:30 pm-10:22 pm

1 stop8h 52m

Ontario

Tue 11/11

10:25 pm-11:10 am

1 stop9h 45m

$513

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Mon 10/20

1:41 pm-8:07 pm

1 stop9h 26m

$279

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Fri 11/28

5:30 am-10:40 am

1 stop8h 10m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Jacksonville to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Jacksonville 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 Jacksonville to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Ontario (average of $246). Flying from Jacksonville, North Carolina to Ontario in March is currently the most expensive (average of $327). 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.

How much does it cost to fly round-trip from Jacksonville, North Carolina to Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Delta from Jacksonville to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Jacksonville to Ontario. 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 Jacksonville, North Carolina to Ontario?

    There are many flights that can get you from Jacksonville, North Carolina to Ontario in 8h 58m. Fly via American Airlines or Delta to get the fastest option. Airlines will cover a distance of 2262 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Jacksonville, North Carolina to Ontario round-trip?

    Delta, at $353, was found to be the cheapest airline from Jacksonville, North Carolina to Ontario.. This flight start at 28% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Jacksonville to Ontario 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 Jacksonville, North Carolina to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Ontario (average of $246). Flying from Jacksonville, North Carolina to Ontario in March is currently the most expensive (average of $327). 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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Alternative routes for Jacksonville to Ontario

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Top airline flying from Jacksonville to Ontario

Discover the top airline that operate flights from Jacksonville to Ontario. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$353Average$476FlexibilityNo cancel feeOn-timeN/A

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