$129+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ONT
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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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 June 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 June 4, 2026.
This Delta deal was found by Cheapflights users on 5/31. 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 8/187:05 am
JAX
- ONT
1 stop6h 37m
Delta
Tue 9/17:05 am
ONT
- JAX
1 stop6h 24m
Delta
Deal found 5/31![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 9/17:05 am
JAX
- ONT
1 stop6h 37m
Delta
Sat 9/57:05 am
ONT
- JAX
1 stop7h 40m
Delta
Deal found 6/1![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 5/30. 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 8/205:34 pm
JAX
- ONT
1 stop7h 18m
Delta
Mon 8/2410:00 pm
ONT
- JAX
1 stop7h 47m
Delta
Deal found 5/30![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
JAX
- ONT
1 stop9h 31m
American Airlines
Tue 9/17:06 am
ONT
- JAX
1 stop6h 20m
American Airlines
Deal found 6/1![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Tue 9/87:40 am
ONT
- JAX
1 stop9h 00m
Southwest
Deal found 6/2![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 9/17:05 am
JAX
- ONT
1 stop6h 37m
Delta
Sun 9/67:05 am
ONT
- JAX
1 stop6h 19m
Delta
Deal found 6/1![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 6/3. 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 9/215:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Thu 9/2411:00 am
ONT
- JAX
1 stop7h 45m
Southwest
Deal found 6/3![Southwest logo]()
$381
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:30 am
JAX
- ONT
1 stop8h 10m
Delta
Tue 7/711:48 am
ONT
- JAX
1 stop9h 21m
Delta
Deal found 6/3![Delta logo]()
$385
This Southwest deal was found by Cheapflights users on 5/30. 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 8/205:50 am
JAX
- ONT
1 stop6h 25m
Southwest
Mon 8/245:15 am
ONT
- JAX
2 stops10h 20m
Southwest
Deal found 5/30![Southwest logo]()
$386
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 June 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 June 4, 2026.
This Delta deal was found by Cheapflights users on 5/31. 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 8/187:05 am
JAX
- ONT
1 stop6h 37m
Delta
Tue 9/17:05 am
ONT
- JAX
1 stop6h 24m
Delta
Deal found 5/31![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 5/30. 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.
Mon 7/205:35 am
JAX
- ONT
1 stop6h 20m
Southwest
Mon 8/39:40 pm
ONT
- JAX
1 stop9h 40m
Southwest
Deal found 5/30![Southwest logo]()
$477
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Tue 8/184:45 pm
JAX
- ONT
2 stops30h 16m
United Airlines
Tue 9/11:56 pm
ONT
- JAX
3 stops27h 58m
United Airlines
Deal found 6/1![United Airlines logo]()
$595
This Delta deal was found by Cheapflights users on 6/3. 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.
Sat 6/275:30 am
JAX
- ONT
1 stop8h 10m
Delta
Tue 6/3011:50 am
ONT
- JAX
1 stop8h 10m
Delta
Deal found 6/3![Delta logo]()
$478
This Southwest deal was found by Cheapflights users on 6/3. 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.
Thu 7/232:50 pm
JAX
- ONT
2 stops10h 25m
Southwest
Sun 7/269:40 pm
ONT
- JAX
1 stop9h 40m
Southwest
Deal found 6/3![Southwest logo]()
$499
This Delta deal was found by Cheapflights users on 5/31. 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.
Fri 7/34:14 pm
JAX
- ONT
1 stop8h 34m
Delta
Mon 7/610:00 pm
ONT
- JAX
1 stop8h 36m
Delta
Deal found 5/31![Delta logo]()
$498
This Delta deal was found by Cheapflights users on 6/3. 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 7/94:14 pm
JAX
- ONT
1 stop8h 36m
Delta
Thu 7/1610:00 pm
ONT
- JAX
1 stop7h 36m
Delta
Deal found 6/3![Delta logo]()
$498
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Fri 6/264:55 pm
JAX
- ONT
1 stop8h 56m
United Airlines
Sat 7/45:45 am
ONT
- JAX
1 stop6h 52m
United Airlines
Deal found 6/1![United Airlines logo]()
$617
This Delta deal was found by Cheapflights users on 6/3. 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 6/265:38 pm
JAX
- ONT
1 stop7h 10m
Delta
Wed 7/811:48 am
ONT
- JAX
1 stop9h 21m
Delta
Deal found 6/3![Delta logo]()
$505
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Sat 8/14:23 pm
JAX
- ONT
1 stop8h 32m
United Airlines
Sat 8/295:00 am
ONT
- JAX
1 stop7h 33m
United Airlines
Deal found 6/2![United Airlines logo]()
$640
This Delta deal was found by Cheapflights users on 5/31. 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.
Sun 6/145:30 am
JAX
- ONT
1 stop8h 10m
Delta
Mon 6/2910:00 pm
ONT
- JAX
1 stop7h 35m
Delta
Deal found 5/31![Delta logo]()
$628
Last-minute flights from Jacksonville to OntarioDiscover last-minute flight deals from Jacksonville to Ontario. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Ontario. Data last updated June 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 6/235:50 am
JAX
- ONT
1 stop6h 41m
American Airlines
Tue 7/1411:59 pm
ONT
- JAX
1 stop7h 38m
American Airlines
Deal found 6/3![American Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 6/3. 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 6/252:48 pm
JAX
- ONT
1 stop6h 42m
Delta
Wed 7/811:48 am
ONT
- JAX
1 stop9h 21m
Delta
Deal found 6/3![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:30 am
JAX
- ONT
1 stop8h 10m
Delta
Wed 7/811:48 am
ONT
- JAX
1 stop9h 21m
Delta
Deal found 6/3![Delta logo]()
$351
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:30 am
JAX
- ONT
1 stop8h 10m
Delta
Tue 7/711:48 am
ONT
- JAX
1 stop9h 21m
Delta
Deal found 6/3![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:30 am
JAX
- ONT
1 stop8h 10m
Delta
Mon 7/610:00 pm
ONT
- JAX
1 stop7h 36m
Delta
Deal found 6/3![Delta logo]()
$414
This Delta deal was found by Cheapflights users on 6/3. 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.
Tue 6/305:30 am
JAX
- ONT
1 stop8h 10m
Delta
Thu 7/910:00 pm
ONT
- JAX
1 stop7h 36m
Delta
Deal found 6/3![Delta logo]()
$435
This Southwest deal was found by Cheapflights users on 6/1. 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.
Sat 7/41:40 pm
JAX
- ONT
2 stops8h 25m
Southwest
Wed 7/81:05 pm
ONT
- JAX
1 stop7h 05m
Southwest
Deal found 6/1![Southwest logo]()
$419
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:41 pm
JAX
- ONT
1 stop7h 18m
American Airlines
Tue 7/1410:25 am
ONT
- JAX
2 stops10h 34m
American Airlines
Deal found 6/2![American Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 6/1. 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.
Mon 7/132:50 pm
JAX
- ONT
2 stops10h 25m
Southwest
Wed 7/151:05 pm
ONT
- JAX
1 stop7h 05m
Southwest
Deal found 6/1![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 6/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:55 am
JAX
- ONT
2 stops9h 55m
Southwest
Tue 7/145:30 am
ONT
- JAX
2 stops9h 40m
Southwest
Deal found 6/2![Southwest logo]()
$458
This Southwest deal was found by Cheapflights users on 5/31. 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.
Tue 7/142:20 pm
JAX
- ONT
2 stops9h 00m
Southwest
Tue 7/219:55 am
ONT
- JAX
1 stop6h 40m
Southwest
Deal found 5/31![Southwest logo]()
$390
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 June 4, 2026.
Search for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 9/16:00 am
JAX
- ONT
1 stop7h 42m
Delta
Deal found 6/1![Delta logo]()
$129
This Delta deal was found by Cheapflights users on 6/1. 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.
Thu 8/274:10 pm
JAX
- ONT
1 stop8h 42m
Delta
Deal found 6/1![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 7/136:29 pm
JAX
- ONT
2 stops40h 34m
Frontier
Deal found 6/3![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 7/206:29 pm
JAX
- ONT
2 stops41h 08m
Frontier
Deal found 6/3![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mon 7/66:29 pm
JAX
- ONT
2 stops41h 08m
Frontier
Deal found 6/3![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Sun 7/198:23 pm
JAX
- ONT
2 stops38h 40m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 5/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:11 pm
JAX
- ONT
1 stop7h 23m
American Airlines
Deal found 5/31![American Airlines logo]()
$176
This Southwest deal was found by Cheapflights users on 6/3. 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.
Wed 7/82:55 pm
JAX
- ONT
1 stop10h 40m
Southwest
Deal found 6/3![Southwest logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Sun 7/56:29 pm
JAX
- ONT
2 stops41h 08m
Frontier
Deal found 6/3![Frontier logo]()
$183
This United Airlines deal was found by Cheapflights users on 5/31. 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.
Tue 8/254:45 pm
JAX
- ONT
1 stop8h 50m
United Airlines
Deal found 5/31![United Airlines logo]()
$184
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 June 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (Delta) |
One-way from | $129 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $431 |
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 June 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
Quickest round-trip
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Tue 8/18
7:05 am-10:42 am
1 stop6h 37m
Ontario
Tue 9/1
7:05 am-4:29 pm
1 stop6h 24m
$257
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Mon 7/20
5:35 am-8:55 am
1 stop6h 20m
Ontario
Mon 8/3
9:40 pm-10:20 am
1 stop9h 40m
$477
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sat 6/27
5:30 am-10:40 am
1 stop8h 10m
Ontario
Tue 6/30
11:50 am-11:00 pm
1 stop8h 10m
$478
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 7/3
4:14 pm-9:48 pm
1 stop8h 34m
Ontario
Mon 7/6
10:00 pm-9:36 am
1 stop8h 36m
$498
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Thu 7/9
4:14 pm-9:50 pm
1 stop8h 36m
Ontario
Thu 7/16
10:00 pm-8:36 am
1 stop7h 36m
$498
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Thu 7/23
2:50 pm-10:15 pm
2 stops10h 25m
Ontario
Sun 7/26
9:40 pm-10:20 am
1 stop9h 40m
$499
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 6/26
5:38 pm-9:48 pm
1 stop7h 10m
Ontario
Wed 7/8
11:48 am-12:09 am
1 stop9h 21m
$505
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Tue 8/18
4:45 pm-8:01 pm
2 stops30h 16m
Ontario
Tue 9/1
1:56 pm-8:54 pm
3 stops27h 58m
$595
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Fri 6/26
4:55 pm-10:51 pm
1 stop8h 56m
Ontario
Sat 7/4
5:45 am-3:37 pm
1 stop6h 52m
$617
JacksonvilleOntario
JAX - ONT
JAXONT
Jacksonville
Sun 6/14
5:30 am-10:40 am
1 stop8h 10m
Ontario
Mon 6/29
10:00 pm-8:35 am
1 stop7h 35m
$628
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 June.
| 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 $372). 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 June 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.
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next 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 June 4, 2026.
Jacksonville and Ontario flights
Browse other Jacksonville and Ontario flight options. Last updated on June 4, 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 June 4, 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 2,558,603 searches. Data last updated June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$429 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$497 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$331 | Average$446 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$337 | Average$472 | FlexibilityNo cancel fee | On-time71% |