$115+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ONT
Sep 3 — Sep 101
Round-trip
1 adult, Economy
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Find cheap flights from Jacksonville to Ontario with Cheapflights
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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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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 August 4, 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 August 4, 2026.
This Delta deal was found by Cheapflights users on 7/30. 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 10/215:05 am
JAX
- ONT
1 stop9h 01m
Delta
Tue 11/37:07 am
ONT
- JAX
1 stop8h 52m
Delta
Deal found 7/30![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 7/30. 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 10/223:53 pm
JAX
- ONT
1 stop9h 01m
Delta
Tue 11/37:07 am
ONT
- JAX
1 stop7h 47m
Delta
Deal found 7/30![Delta logo]()
$328
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/55:16 pm
JAX
- ONT
1 stop8h 43m
American Airlines
Wed 9/166:00 am
ONT
- JAX
1 stop7h 15m
American Airlines
Deal found 8/3![American Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 8/3. 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 9/55:10 pm
JAX
- ONT
1 stop6h 45m
Southwest
Wed 9/168:35 am
ONT
- JAX
2 stops8h 55m
Southwest
Deal found 8/3![Southwest logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 8/243:07 pm
JAX
- ONT
1 stop8h 46m
United Airlines
Thu 8/275:00 am
ONT
- JAX
1 stop7h 33m
United Airlines
Deal found 8/3![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/3. 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 9/286:59 pm
JAX
- ONT
1 stop6h 25m
Delta
Mon 10/510:00 pm
ONT
- JAX
1 stop7h 39m
Delta
Deal found 8/3![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 8/245:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Thu 8/275:15 am
ONT
- JAX
2 stops10h 20m
Southwest
Deal found 8/3![Southwest logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 10/149:44 am
JAX
- ONT
1 stop9h 26m
Multiple Airlines
Wed 10/218:07 am
ONT
- JAX
2 stops30h 44m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/1. 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 10/143:00 pm
JAX
- ONT
1 stop8h 58m
United Airlines
Wed 10/218:03 am
ONT
- JAX
2 stops12h 17m
United Airlines
Deal found 8/1![United Airlines logo]()
$380
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 August 4, 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 August 4, 2026.
This Delta deal was found by Cheapflights users on 7/30. 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 10/215:05 am
JAX
- ONT
1 stop9h 01m
Delta
Tue 11/37:07 am
ONT
- JAX
1 stop8h 52m
Delta
Deal found 7/30![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 7/31. 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 9/306:45 am
JAX
- ONT
2 stops8h 45m
Southwest
Mon 10/56:40 am
ONT
- JAX
2 stops10h 25m
Southwest
Deal found 7/31![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/299:25 am
JAX
- ONT
2 stops13h 36m
United Airlines
Wed 9/27:00 am
ONT
- JAX
1 stop9h 25m
United Airlines
Deal found 8/1![United Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 8/3. 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 9/286:59 pm
JAX
- ONT
1 stop6h 25m
Delta
Mon 10/510:00 pm
ONT
- JAX
1 stop7h 39m
Delta
Deal found 8/3![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 7/30. 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 8/275:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Thu 9/310:00 am
ONT
- JAX
1 stop8h 10m
Southwest
Deal found 7/30![Southwest logo]()
$405
This Delta deal was found by Cheapflights users on 8/1. 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 9/113:54 pm
JAX
- ONT
1 stop7h 11m
Delta
Mon 9/1410:00 pm
ONT
- JAX
1 stop9h 08m
Delta
Deal found 8/1![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/228:15 am
JAX
- ONT
1 stop7h 35m
United Airlines
Tue 8/257:00 am
ONT
- JAX
1 stop9h 25m
United Airlines
Deal found 8/3![United Airlines logo]()
$492
This Southwest deal was found by Cheapflights users on 7/30. 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 9/512:40 pm
JAX
- ONT
2 stops10h 25m
Southwest
Tue 9/85:45 am
ONT
- JAX
2 stops9h 10m
Southwest
Deal found 7/30![Southwest logo]()
$453
This Delta deal was found by Cheapflights users on 8/3. 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 10/15:34 pm
JAX
- ONT
1 stop7h 50m
Delta
Sun 10/410:00 pm
ONT
- JAX
1 stop7h 37m
Delta
Deal found 8/3![Delta logo]()
$417
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/268:15 am
JAX
- ONT
1 stop7h 35m
United Airlines
Mon 8/315:00 am
ONT
- JAX
1 stop7h 33m
United Airlines
Deal found 8/3![United Airlines logo]()
$512
Last-minute flights from Jacksonville to OntarioDiscover last-minute flight deals from Jacksonville to Ontario. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Ontario. Data last updated August 4, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/31. 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 8/182:29 pm
JAX
- ONT
1 stop8h 24m
Delta
Tue 9/112:00 pm
ONT
- JAX
1 stop8h 55m
Delta
Deal found 7/31![Delta logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/199:33 am
JAX
- ONT
1 stop9h 21m
Multiple Airlines
Wed 8/2610:59 am
ONT
- JAX
2 stops28h 11m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 8/243:07 pm
JAX
- ONT
1 stop8h 46m
United Airlines
Thu 8/275:00 am
ONT
- JAX
1 stop7h 33m
United Airlines
Deal found 8/3![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 8/245:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Thu 8/275:15 am
ONT
- JAX
2 stops10h 20m
Southwest
Deal found 8/3![Southwest logo]()
$352
This Southwest deal was found by Cheapflights users on 7/30. 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 8/275:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Thu 9/35:15 am
ONT
- JAX
2 stops10h 20m
Southwest
Deal found 7/30![Southwest logo]()
$388
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/55:16 pm
JAX
- ONT
1 stop8h 43m
American Airlines
Wed 9/166:00 am
ONT
- JAX
1 stop7h 15m
American Airlines
Deal found 8/3![American Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 8/3. 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 9/55:10 pm
JAX
- ONT
1 stop6h 45m
Southwest
Wed 9/168:35 am
ONT
- JAX
2 stops8h 55m
Southwest
Deal found 8/3![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 8/1. 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 9/105:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Mon 9/145:15 am
ONT
- JAX
2 stops10h 20m
Southwest
Deal found 8/1![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 8/3. 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 9/286:59 pm
JAX
- ONT
1 stop6h 25m
Delta
Mon 10/510:00 pm
ONT
- JAX
1 stop7h 39m
Delta
Deal found 8/3![Delta logo]()
$349
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 August 4, 2026.
Search for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Thu 10/296:46 pm
JAX
- ONT
2 stops32h 09m
Frontier
Deal found 8/2![Frontier logo]()
$115
This Delta deal was found by Cheapflights users on 7/30. 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 8/266:00 am
JAX
- ONT
1 stop7h 42m
Delta
Deal found 7/30![Delta logo]()
$162
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/293:44 pm
JAX
- ONT
1 stop8h 56m
United Airlines
Deal found 8/2![United Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Thu 10/299:08 pm
JAX
- ONT
3 stops29h 47m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$200
This Delta deal was found by Cheapflights users on 8/3. 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 9/44:10 pm
JAX
- ONT
1 stop8h 42m
Delta
Deal found 8/3![Delta logo]()
$209
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/264:45 pm
JAX
- ONT
1 stop8h 50m
United Airlines
Deal found 7/30![United Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/1710:26 pm
JAX
- ONT
2 stops37h 10m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/245:00 pm
JAX
- ONT
1 stop7h 59m
United Airlines
Deal found 7/31![United Airlines logo]()
$229
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/2211:40 am
JAX
- ONT
2 stops12h 13m
United Airlines
Deal found 8/1![United Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 8/156:29 pm
JAX
- ONT
2 stops16h 03m
Frontier
Deal found 7/31![Frontier logo]()
$253
This KAYAK deal was found by Cheapflights users on 7/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:34 pm
JAX
- ONT
1 stop7h 18m
Delta
Deal found 7/30![Delta logo]()
$254
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/55:16 pm
JAX
- ONT
1 stop8h 43m
American Airlines
Deal found 8/3![American Airlines logo]()
$261
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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $323 (Delta) |
One-way from | $115 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $718 |
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 August 4, 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
Wed 10/21
5:05 am-11:06 am
1 stop9h 01m
Ontario
Tue 11/3
7:07 am-6:59 pm
1 stop8h 52m
$323
Quickest round-trip
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Mon 9/28
6:59 pm-10:24 pm
1 stop6h 25m
Ontario
Mon 10/5
10:00 pm-8:39 am
1 stop7h 39m
$349
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 9/30
6:45 am-12:30 pm
2 stops8h 45m
Ontario
Mon 10/5
6:40 am-8:05 pm
2 stops10h 25m
$392
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 9/11
3:54 pm-8:05 pm
1 stop7h 11m
Ontario
Mon 9/14
10:00 pm-10:08 am
1 stop9h 08m
$393
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Thu 8/27
5:50 am-9:15 am
1 stop6h 25m
Ontario
Thu 9/3
10:00 am-9:10 pm
1 stop8h 10m
$405
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Thu 10/1
5:34 pm-10:24 pm
1 stop7h 50m
Ontario
Sun 10/4
10:00 pm-8:37 am
1 stop7h 37m
$417
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 9/5
12:40 pm-8:05 pm
2 stops10h 25m
Ontario
Tue 9/8
5:45 am-5:55 pm
2 stops9h 10m
$453
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 8/29
9:25 am-8:01 pm
2 stops13h 36m
Ontario
Wed 9/2
7:00 am-7:25 pm
1 stop9h 25m
$462
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 8/22
8:15 am-12:50 pm
1 stop7h 35m
Ontario
Tue 8/25
7:00 am-7:25 pm
1 stop9h 25m
$492
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Wed 8/26
8:15 am-12:50 pm
1 stop7h 35m
Ontario
Mon 8/31
5:00 am-3:33 pm
1 stop7h 33m
$512
Showing 1-10 of 21 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 August.
| 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, September is the cheapest month in which you can book a flight from Jacksonville to Ontario (average of $381). 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 $433 and $718 in October.The cheapest round-trip price found within the last 5 days was $323 on Delta (Oct 21-Nov 3).
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 August 4, 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.
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
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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Alternative routes for Jacksonville to Ontario
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Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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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 August 4, 2026.
Jacksonville and Ontario flights
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Other flights from Jacksonville
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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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$331 | Average$446 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$335 | Average$476 | FlexibilityNo cancel fee | On-time71% |