$453+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OAJ
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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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
Best
Last-minute
One-way
Cheapest flights from Ontario to JacksonvilleExplore 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 September 17, 2026.
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 September 17, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Sat 10/176:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$512
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.
Sun 10/2511:15 pm -
1 stop8h 54m
Sun 11/16:00 am -
1 stop8h 06m
Deal found 9/14![Delta logo]()
$549
This Delta deal was found by Cheapflights users on 9/16. 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 9/2312:19 pm -
1 stop7h 03m
Wed 9/306:00 am -
1 stop8h 09m
Deal found 9/16![Delta logo]()
$551
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.
Sat 10/104:29 pm -
2 stops13h 00m
Sat 10/174:56 pm -
1 stop9h 03m
Deal found 9/15![American Airlines logo]()
$559
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Mon 10/196:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$562
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.
Wed 10/710:10 pm -
1 stop7h 19m
Mon 10/124:56 pm -
1 stop9h 03m
Deal found 9/15![American Airlines logo]()
$584
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:19 pm -
1 stop7h 03m
Sun 10/46:00 am -
1 stop8h 09m
Deal found 9/15![Delta logo]()
$604
Best flights from Ontario to JacksonvilleDiscover 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 September 17, 2026.
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 September 17, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Sat 10/176:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$512
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/2510:10 pm -
1 stop7h 19m
Sun 11/16:02 pm -
1 stop7h 59m
Deal found 9/16![American Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 9/13. 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.
Sun 10/2511:15 pm -
1 stop8h 54m
Sun 11/16:00 am -
1 stop8h 06m
Deal found 9/13![Delta logo]()
$549
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.
Sat 10/104:29 pm -
2 stops13h 00m
Sat 10/174:56 pm -
1 stop9h 03m
Deal found 9/15![American Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 9/12. 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 10/1211:15 pm -
1 stop8h 54m
Mon 10/196:00 am -
1 stop8h 06m
Deal found 9/12![Delta logo]()
$549
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Mon 10/196:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$562
This Delta deal was found by Cheapflights users on 9/17. 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 10/1412:16 pm -
1 stop7h 06m
Sat 10/176:00 am -
1 stop8h 06m
Deal found 9/17![Delta logo]()
$625
Last-minute flights from Ontario to JacksonvilleDiscover last-minute flight deals from Ontario to Jacksonville. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Jacksonville. Data last updated September 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/16. 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 9/2312:19 pm -
1 stop7h 03m
Wed 9/306:00 am -
1 stop8h 09m
Deal found 9/16![Delta logo]()
$551
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:19 pm -
1 stop7h 03m
Sun 10/46:00 am -
1 stop8h 09m
Deal found 9/15![Delta logo]()
$604
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.
Wed 10/710:10 pm -
1 stop7h 19m
Mon 10/124:56 pm -
1 stop9h 03m
Deal found 9/15![American Airlines logo]()
$584
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Sat 10/176:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$512
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.
Sat 10/104:29 pm -
2 stops13h 00m
Sat 10/174:56 pm -
1 stop9h 03m
Deal found 9/15![American Airlines logo]()
$559
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
1 stop7h 06m
Mon 10/196:00 am -
1 stop8h 06m
Deal found 9/15![Delta logo]()
$562
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.
Sun 10/2511:15 pm -
1 stop8h 54m
Sun 11/16:00 am -
1 stop8h 06m
Deal found 9/14![Delta logo]()
$549
One-way flights from Ontario to JacksonvilleSearch for one-way flight options from Ontario to Jacksonville. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Ontario to Jacksonville. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
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.
Tue 9/2212:17 pm -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$453
This American Airlines deal was found by Cheapflights users on 9/16. 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 9/228:25 am -
2 stops11h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$588
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $512 (Delta) |
One-way from | $453 (Delta) |
Popular in | March |
Cheapest in | September |
Average price | $410 |
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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from Ontario to Jacksonville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Wed 9/23
12:19 pm-10:22 pm
1 stop7h 03m
Jacksonville Albert J Ellis
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$453
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Sat 10/10
12:16 pm-10:22 pm
1 stop7h 06m
Jacksonville Albert J Ellis
Sat 10/17
6:00 am-11:06 am
1 stop8h 06m
$512
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Sun 10/25
10:10 pm-8:29 am
1 stop7h 19m
Jacksonville Albert J Ellis
Sun 11/1
6:02 pm-11:01 pm
1 stop7h 59m
$549
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Sun 10/25
11:15 pm-11:09 am
1 stop8h 54m
Jacksonville Albert J Ellis
Sun 11/1
6:00 am-11:06 am
1 stop8h 06m
$549
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Mon 10/12
11:15 pm-11:09 am
1 stop8h 54m
Jacksonville Albert J Ellis
Mon 10/19
6:00 am-11:06 am
1 stop8h 06m
$549
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Sat 10/10
4:29 pm-8:29 am
2 stops13h 00m
Jacksonville Albert J Ellis
Sat 10/17
4:56 pm-10:59 pm
1 stop9h 03m
$559
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Sat 10/10
12:16 pm-10:22 pm
1 stop7h 06m
Jacksonville Albert J Ellis
Mon 10/19
6:00 am-11:06 am
1 stop8h 06m
$562
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Tue 9/22
8:25 am-10:44 pm
2 stops11h 19m
Jacksonville Albert J Ellis
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$588
OntarioJacksonville
ONT Ontario - OAJ Jacksonville Albert J Ellis
ONTOAJ
Ontario
Wed 10/14
12:16 pm-10:22 pm
1 stop7h 06m
Jacksonville Albert J Ellis
Sat 10/17
6:00 am-11:06 am
1 stop8h 06m
$625
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-OAJ
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.
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 September 17, 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.
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
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Other flights from Ontario
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Alternative routes for Ontario to Jacksonville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Jacksonville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Jacksonville by cabin class
Find flights from Ontario to Jacksonville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Jacksonville
Explore flights to Jacksonville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Ontario and Jacksonville flights
Browse other Ontario and Jacksonville flight options. Last updated on September 17, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$356 | Average$594 | FlexibilityNo cancel fee | On-time71% |