$117+ Cheap flights from Jacksonville to Ontario (JAX - ONT)
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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ONT
Oct 10 — Oct 171
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
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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 September 10, 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 September 10, 2026.
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:46 pm -
2 stops25h 02m
Wed 10/146:15 am -
2 stops32h 10m
Deal found 9/9![Frontier logo]()
$301
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:46 pm -
2 stops31h 01m
Mon 10/56:45 pm -
2 stops45h 16m
Deal found 9/10![Frontier logo]()
$311
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:03 pm -
2 stops31h 48m
Mon 11/28:03 pm -
2 stops43h 05m
Deal found 9/9![Frontier logo]()
$331
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:46 pm -
2 stops31h 01m
Mon 10/128:03 pm -
2 stops19h 43m
Deal found 9/9![Frontier logo]()
$341
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:46 pm -
2 stops17h 44m
Tue 10/1311:26 am -
2 stops28h 20m
Deal found 9/8![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:46 pm -
2 stops25h 02m
Tue 10/66:15 am -
2 stops9h 46m
Deal found 9/10![Frontier logo]()
$353
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:46 pm -
2 stops31h 04m
Wed 10/146:15 am -
2 stops32h 10m
Deal found 9/9![Frontier logo]()
$357
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:46 pm -
2 stops25h 30m
Sat 10/310:04 am -
2 stops29h 57m
Deal found 9/7![Frontier logo]()
$367
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:46 pm -
2 stops17h 43m
Fri 10/168:03 pm -
2 stops19h 43m
Deal found 9/8![Frontier logo]()
$369
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:46 pm -
2 stops42h 30m
Tue 10/206:15 am -
2 stops33h 31m
Deal found 9/9![Frontier logo]()
$372
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:46 pm -
2 stops25h 02m
Sun 10/47:46 pm -
2 stops44h 15m
Deal found 9/9![Frontier logo]()
$375
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 September 10, 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 September 10, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 12/35:45 pm -
1 stop7h 11m
Thu 12/247:05 am -
1 stop7h 49m
Deal found 9/10![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 9/6. 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 11/265:25 am -
1 stop7h 10m
Fri 11/276:55 am -
2 stops10h 30m
Deal found 9/6![Southwest logo]()
$483
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 12/105:29 pm -
1 stop7h 30m
Mon 12/145:00 am -
1 stop7h 17m
Deal found 9/9![United Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 9/7. 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 10/16:59 pm -
1 stop6h 25m
Mon 10/510:00 pm -
1 stop7h 39m
Deal found 9/7![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/165:29 pm -
1 stop7h 30m
Tue 1/56:00 am -
1 stop7h 27m
Deal found 9/7![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sun 11/85:20 am -
2 stops8h 30m
Sun 11/1512:40 pm -
1 stop8h 05m
Deal found 9/9![Southwest logo]()
$492
This Delta deal was found by Cheapflights users on 9/9. 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 10/83:53 pm -
1 stop9h 01m
Fri 10/1611:19 pm -
1 stop8h 00m
Deal found 9/9![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 12/114:20 pm -
1 stop7h 00m
Mon 12/145:45 am -
1 stop7h 38m
Deal found 9/9![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 9/7. 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 12/166:35 am -
2 stops10h 55m
Sat 1/28:00 am -
1 stop9h 20m
Deal found 9/7![Southwest logo]()
$533
This Southwest deal was found by Cheapflights users on 9/6. 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.
Sat 1/26:30 am -
2 stops10h 55m
Sat 1/235:25 am -
2 stops9h 25m
Deal found 9/6![Southwest logo]()
$549
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/174:58 pm -
1 stop8h 51m
Mon 10/266:00 am -
1 stop7h 23m
Deal found 9/6![United Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 9/10. 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 12/265:00 am -
1 stop8h 00m
Wed 1/67:00 am -
1 stop6h 17m
Deal found 9/10![Delta logo]()
$572
Last-minute flights from Jacksonville to OntarioDiscover last-minute flight deals from Jacksonville to Ontario. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Ontario. Data last updated September 10, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:46 pm -
2 stops25h 30m
Sat 10/310:04 am -
2 stops29h 57m
Deal found 9/7![Frontier logo]()
$367
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:46 pm -
2 stops25h 02m
Wed 10/146:15 am -
2 stops32h 10m
Deal found 9/9![Frontier logo]()
$301
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:46 pm -
2 stops25h 02m
Tue 10/66:15 am -
2 stops9h 46m
Deal found 9/10![Frontier logo]()
$353
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:46 pm -
2 stops25h 02m
Sun 10/47:46 pm -
2 stops44h 15m
Deal found 9/9![Frontier logo]()
$375
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:46 pm -
2 stops31h 01m
Mon 10/56:45 pm -
2 stops45h 16m
Deal found 9/10![Frontier logo]()
$311
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:46 pm -
2 stops31h 01m
Mon 10/128:03 pm -
2 stops19h 43m
Deal found 9/9![Frontier logo]()
$341
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:46 pm -
2 stops17h 44m
Tue 10/1311:26 am -
2 stops28h 20m
Deal found 9/8![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:46 pm -
2 stops31h 04m
Wed 10/146:15 am -
2 stops32h 10m
Deal found 9/9![Frontier logo]()
$357
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:46 pm -
2 stops17h 43m
Fri 10/168:03 pm -
2 stops19h 43m
Deal found 9/8![Frontier logo]()
$369
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:46 pm -
2 stops42h 30m
Tue 10/206:15 am -
2 stops33h 31m
Deal found 9/9![Frontier logo]()
$372
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:03 pm -
2 stops31h 48m
Mon 11/28:03 pm -
2 stops43h 05m
Deal found 9/9![Frontier logo]()
$331
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 September 10, 2026.
Search for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Trip.com deal was found by Cheapflights users on 9/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:46 pm -
2 stops17h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 11/147:13 pm -
2 stops43h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$153
This Delta deal was found by Cheapflights users on 9/8. 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 12/316:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$189
This Delta deal was found by Cheapflights users on 9/9. 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 1/16:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$206
This Delta deal was found by Cheapflights users on 9/7. 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 10/3112:53 pm -
1 stop9h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$216
This Delta deal was found by Cheapflights users on 9/7. 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 10/296:10 am -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$225
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:20 pm -
2 stops15h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$226
This Delta deal was found by Cheapflights users on 9/6. 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 1/26:00 am -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$236
This Southwest deal was found by Cheapflights users on 9/9. 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 12/305:30 am -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$238
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/174:58 pm -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$244
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $301 (CheapOair) |
One-way from | $117 (Trip.com) |
Popular in | December |
Cheapest in | January |
Average price | $437 |
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 7,457,451 searches. Data last updated September 10, 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
Quickest round-trip
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Sat 1/2
6:00 am-10:00 am
1 stop7h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$226
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Thu 12/31
6:00 am-10:00 am
1 stop7h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$235
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Fri 11/27
6:10 am-11:08 am
1 stop7h 58m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$250
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Sun 1/3
6:00 am-10:00 am
1 stop7h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$264
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Mon 12/28
5:00 am-10:00 am
1 stop8h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$270
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Sat 11/21
5:29 pm-9:40 pm
1 stop7h 11m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$271
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Wed 9/16
6:45 am-12:40 pm
2 stops8h 55m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$296
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Wed 9/16
8:15 am-12:50 pm
1 stop7h 35m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$301
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Tue 9/22
6:00 am-11:05 am
1 stop8h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$301
JacksonvilleOntario
JAX Jacksonville - ONT Ontario
JAXONT
Jacksonville
Thu 10/8
3:53 pm-9:54 pm
1 stop9h 01m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$304
Showing 1-10 of 23 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 September.
| 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, January is the cheapest month in which you can book a flight from Jacksonville to Ontario (average of $393). Flying from Jacksonville to Ontario in December is currently the most expensive (average of $748). 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?
Airfare is below average for this route at the moment.
Jacksonville to Ontario flights typically cost between $363 and $491 in September.The cheapest round-trip price found within the last 5 days was $301 on Frontier (Sep 30-Oct 14).
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 10, 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.
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Boarding
8.1
Overall
8.0
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
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Complete your trip
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Ontario flight routes
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Alternative routes for Jacksonville to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Jacksonville to Ontario by cabin class
Find flights from Jacksonville to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Jacksonville and Ontario flights
Browse other Jacksonville and Ontario flight options. Last updated on September 10, 2026.
Other flights from Jacksonville
Browse through other flights departing from Jacksonville. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$429 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$332 | Average$453 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$335 | Average$471 | FlexibilityNo cancel fee | On-time71% |