$142+ Cheap flights from Jacksonville to Ontario (JAX - 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ONT
May 16 — May 231
Round-trip
1 adult, Economy
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Find cheap flights from Jacksonville to Ontario 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 Jacksonville to Ontario
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Cheapest flights from Jacksonville to OntarioExplore 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 April 16, 2026.
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 April 16, 2026.
This Delta deal was found by Cheapflights users on 4/13. 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.
Tue 8/185:05 pm
JAX
- ONT
1 stop7h 51m
Delta
Tue 9/110:59 pm
ONT
- JAX
1 stop8h 22m
Delta
Deal found 4/13![Delta logo]()
$311
This American Airlines deal was found by Cheapflights users on 4/15. 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 8/1811:03 am
JAX
- ONT
2 stops10h 44m
American Airlines
Tue 9/17:06 am
ONT
- JAX
2 stops13h 00m
American Airlines
Deal found 4/15![American Airlines logo]()
$321
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 5/276:05 pm
JAX
- ONT
1 stop7h 31m
American Airlines
Sat 5/3012:41 pm
ONT
- JAX
1 stop8h 01m
American Airlines
Deal found 4/14![American Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:35 am
JAX
- ONT
1 stop6h 55m
Southwest
Mon 5/119:55 pm
ONT
- JAX
1 stop10h 10m
Southwest
Deal found 4/14![Southwest logo]()
$333
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
JAX
- ONT
2 stops10h 18m
American Airlines
Mon 5/1811:29 pm
ONT
- JAX
1 stop8h 02m
American Airlines
Deal found 4/13![American Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:05 pm
JAX
- ONT
1 stop7h 31m
American Airlines
Wed 6/242:18 pm
ONT
- JAX
1 stop6h 24m
American Airlines
Deal found 4/12![American Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 4/14. 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.
Thu 5/75:30 pm
JAX
- ONT
2 stops9h 04m
Delta
Mon 5/114:57 pm
ONT
- JAX
2 stops13h 44m
Delta
Deal found 4/14![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 6/95:30 am
JAX
- ONT
1 stop8h 10m
Delta
Wed 6/1710:00 pm
ONT
- JAX
1 stop7h 35m
Delta
Deal found 4/12![Delta logo]()
$365
Best flights from Jacksonville to OntarioDiscover carefully curated flight deals from Jacksonville to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2026.
Discover carefully curated flight deals from Jacksonville to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2026.
This Southwest deal was found by Cheapflights users on 4/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/122:15 pm
JAX
- ONT
1 stop11h 10m
Southwest
Tue 6/169:40 pm
ONT
- JAX
1 stop9h 45m
Southwest
Deal found 4/12![Southwest logo]()
$394
This Delta deal was found by Cheapflights users on 4/16. 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 5/2711:40 am
JAX
- ONT
2 stops13h 08m
Delta
Sat 5/305:55 pm
ONT
- JAX
2 stops12h 46m
Delta
Deal found 4/16![Delta logo]()
$421
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:00 pm
JAX
- ONT
1 stop8h 35m
United Airlines
Wed 5/205:00 am
ONT
- JAX
2 stops13h 50m
United Airlines
Deal found 4/12![United Airlines logo]()
$426
This JetBlue deal was found by Cheapflights users on 4/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:17 pm
JAX
- ONT
1 stop9h 30m
JetBlue
Tue 6/910:41 pm
ONT
- JAX
1 stop11h 24m
JetBlue
Deal found 4/14![JetBlue logo]()
$523
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:25 pm
JAX
- ONT
1 stop7h 33m
United Airlines
Tue 5/126:00 am
ONT
- JAX
1 stop7h 13m
United Airlines
Deal found 4/12![United Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 4/12. 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.
Fri 6/125:33 pm
JAX
- ONT
1 stop7h 15m
Delta
Wed 6/1710:00 pm
ONT
- JAX
1 stop8h 37m
Delta
Deal found 4/12![Delta logo]()
$495
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:15 am
JAX
- ONT
2 stops12h 37m
United Airlines
Sat 5/167:00 am
ONT
- JAX
1 stop7h 45m
United Airlines
Deal found 4/11![United Airlines logo]()
$485
Last-minute flights from Jacksonville to OntarioDiscover last-minute flight deals from Jacksonville to Ontario. Data last updated April 16, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Ontario. Data last updated April 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/14. 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 5/66:30 am
JAX
- ONT
1 stop8h 06m
Delta
Tue 5/1210:00 pm
ONT
- JAX
1 stop7h 41m
Delta
Deal found 4/14![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:35 am
JAX
- ONT
1 stop6h 55m
Southwest
Mon 5/119:55 pm
ONT
- JAX
1 stop10h 10m
Southwest
Deal found 4/14![Southwest logo]()
$333
This Delta deal was found by Cheapflights users on 4/14. 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.
Thu 5/75:30 pm
JAX
- ONT
2 stops9h 04m
Delta
Mon 5/114:57 pm
ONT
- JAX
2 stops13h 44m
Delta
Deal found 4/14![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 5/75:38 pm
JAX
- ONT
1 stop7h 10m
Delta
Sat 5/910:00 pm
ONT
- JAX
1 stop8h 41m
Delta
Deal found 4/15![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 4/13. 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.
Thu 5/75:05 am
JAX
- ONT
1 stop8h 52m
Delta
Thu 5/1410:00 pm
ONT
- JAX
1 stop7h 41m
Delta
Deal found 4/13![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:25 pm
JAX
- ONT
1 stop7h 33m
United Airlines
Sat 5/166:00 am
ONT
- JAX
1 stop7h 13m
United Airlines
Deal found 4/11![United Airlines logo]()
$328
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
JAX
- ONT
2 stops10h 18m
American Airlines
Mon 5/1811:29 pm
ONT
- JAX
1 stop8h 02m
American Airlines
Deal found 4/13![American Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 pm
JAX
- ONT
2 stops16h 05m
Multiple Airlines
Tue 6/24:39 pm
ONT
- JAX
1 stop24h 06m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 5/276:05 pm
JAX
- ONT
1 stop7h 31m
American Airlines
Sat 5/3012:41 pm
ONT
- JAX
1 stop8h 01m
American Airlines
Deal found 4/14![American Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 4/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:05 am
JAX
- ONT
2 stops8h 50m
Southwest
Wed 6/39:55 pm
ONT
- JAX
1 stop9h 25m
Southwest
Deal found 4/11![Southwest logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:33 am
JAX
- ONT
1 stop9h 11m
Multiple Airlines
Sat 6/66:00 am
ONT
- JAX
2 stops32h 35m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$381
One-way flights from Jacksonville to OntarioSearch for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated April 16, 2026.
Search for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated April 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:49 pm
JAX
- ONT
2 stops39h 16m
Frontier
Deal found 4/13![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:30 pm
JAX
- ONT
3 stops48h 14m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:51 pm
JAX
- ONT
2 stops38h 04m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 pm
JAX
- ONT
2 stops16h 05m
Frontier
Deal found 4/13![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:45 pm
JAX
- ONT
2 stops39h 20m
Frontier
Deal found 4/13![Frontier logo]()
$150
This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:25 pm
JAX
- ONT
1 stop7h 33m
United Airlines
Deal found 4/13![United Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:30 pm
JAX
- ONT
2 stops32h 19m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$155
This Delta deal was found by Cheapflights users on 4/16. 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 5/275:38 pm
JAX
- ONT
1 stop7h 10m
Delta
Deal found 4/16![Delta logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:30 pm
JAX
- ONT
2 stops27h 41m
Frontier
Deal found 4/12![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:30 pm
JAX
- ONT
2 stops16h 05m
Frontier
Deal found 4/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:30 pm
JAX
- ONT
2 stops32h 19m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$160
This American Airlines deal was found by Cheapflights users on 4/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:00 am
JAX
- ONT
2 stops10h 18m
American Airlines
Deal found 4/13![American Airlines logo]()
$161
Find flight deals from Jacksonville to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) 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 April 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Delta) |
One-way from | $142 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $464 |
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 April 16, 2026.
Use the filters below to find and compare flights from Jacksonville to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 6/12
2:15 pm-10:25 pm
1 stop11h 10m
Ontario
Tue 6/16
9:40 pm-10:25 am
1 stop9h 45m
$394
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 5/27
11:40 am-9:48 pm
2 stops13h 08m
Ontario
Sat 5/30
5:55 pm-9:41 am
2 stops12h 46m
$421
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 5/13
5:00 pm-10:35 pm
1 stop8h 35m
Ontario
Wed 5/20
5:00 am-9:50 pm
2 stops13h 50m
$426
Quickest round-trip
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 5/9
5:25 pm-9:58 pm
1 stop7h 33m
Ontario
Tue 5/12
6:00 am-4:13 pm
1 stop7h 13m
$427
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 5/9
8:15 am-5:52 pm
2 stops12h 37m
Ontario
Sat 5/16
7:00 am-5:45 pm
1 stop7h 45m
$485
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 6/12
5:33 pm-9:48 pm
1 stop7h 15m
Ontario
Wed 6/17
10:00 pm-9:37 am
1 stop8h 37m
$495
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 6/3
2:17 pm-8:47 pm
1 stop9h 30m
Ontario
Tue 6/9
10:41 pm-1:05 pm
1 stop11h 24m
$523
Cheapest one-way
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Mon 5/4
5:25 pm-9:58 pm
1 stop7h 33m
$162
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Thu 5/28
5:10 am-9:55 am
1 stop7h 45m
$167
Quickest one-way
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 8/19
8:06 am-12:38 pm
1 stop7h 32m
$211
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Jacksonville to Ontario
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 Jacksonville to Ontario in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Jacksonville-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Jacksonville-Ontario 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 Jacksonville-Ontario 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 Jacksonville to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Jacksonville with our price prediction graph.
JAX-ONT
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 to Ontario?
Currently, October is the cheapest month in which you can book a flight from Jacksonville to Ontario (average of $250). Flying from Jacksonville to Ontario in December is currently the most expensive (average of $722). 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 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 April 16, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Jacksonville to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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Top 4 airlines flying from Jacksonville to Ontario
Discover the top 4 airlines 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 April 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$183 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$429 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$331 | Average$416 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$342 | Average$456 | FlexibilityNo cancel fee | On-time71% |