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Ontario

$270+ Cheap flights from Jacksonville, NC to Ontario (OAJ - 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
OAJ — ONT
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap flight deals from Jacksonville to Ontario

Cheapest flights from Jacksonville to Ontario
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 March 17, 2026.

This Delta deal was found by Cheapflights users on 3/14. 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 6/44:07 pm
OAJ
-
ONT
1 stop8h 41m
Delta
Tue 6/910:59 pm
ONT
-
OAJ
1 stop9h 15m
Delta
Deal found 3/14$496
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:07 pm
OAJ
-
ONT
1 stop8h 41m
Delta
Tue 6/25:50 pm
ONT
-
OAJ
2 stops14h 16m
Delta
Deal found 3/14$531
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:11 pm
OAJ
-
ONT
1 stop7h 25m
American Airlines
Sun 6/710:00 pm
ONT
-
OAJ
1 stop7h 28m
American Airlines
Deal found 3/16$538
This Delta deal was found by Cheapflights users on 3/15. 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.
Tue 4/142:20 pm
OAJ
-
ONT
1 stop9h 40m
Delta
Tue 4/217:05 am
ONT
-
OAJ
1 stop8h 04m
Delta
Deal found 3/15$545
This American Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 4/37:55 pm
OAJ
-
ONT
2 stops15h 56m
American Airlines
Mon 4/611:59 pm
ONT
-
OAJ
1 stop6h 50m
American Airlines
Deal found 3/13$548
This American Airlines deal was found by Cheapflights users on 3/12. 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.
Thu 4/164:17 pm
OAJ
-
ONT
1 stop7h 50m
American Airlines
Sun 4/1910:26 pm
ONT
-
OAJ
1 stop9h 00m
American Airlines
Deal found 3/12$567
This Delta deal was found by Cheapflights users on 3/14. 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.
Fri 4/32:21 pm
OAJ
-
ONT
1 stop9h 39m
Delta
Tue 4/712:57 pm
ONT
-
OAJ
1 stop6h 36m
Delta
Deal found 3/14$576

Find flight deals from Jacksonville to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (OAJ) 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 March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(Delta)

One-way from

$270
(Delta)

Popular in

December

Cheapest in

July

Average price

$744
Provider with most accurate pricing for Jacksonville Albert J Ellis-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Jacksonville Albert J Ellis-Ontario flights.
Search Deals
From Jacksonville Albert J Ellis to Ontario
Search Deals
One-way flight from Jacksonville Albert J Ellis to Ontario
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($175 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 17, 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

Price

Cheapest round-trip

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Thu 6/4

4:07 pm-9:48 pm

1 stop8h 41m

Ontario

Tue 6/9

10:59 pm-11:14 am

1 stop9h 15m

$496

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Tue 5/26

4:07 pm-9:48 pm

1 stop8h 41m

Ontario

Tue 6/2

5:50 pm-11:06 am

2 stops14h 16m

$531

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Fri 4/3

7:55 pm-8:51 am

2 stops15h 56m

Ontario

Mon 4/6

11:59 pm-9:49 am

1 stop6h 50m

$548

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Fri 5/29

3:07 pm-11:59 pm

2 stops11h 52m

Ontario

Sun 6/7

10:00 pm-8:28 am

1 stop7h 28m

$553

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Fri 4/3

2:21 pm-9:00 pm

1 stop9h 39m

Ontario

Tue 4/7

12:57 pm-10:33 pm

1 stop6h 36m

$576

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Thu 4/16

4:17 pm-9:07 pm

1 stop7h 50m

Ontario

Sun 4/19

11:59 pm-1:01 pm

2 stops10h 02m

$612

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Thu 6/4

4:07 pm-9:48 pm

1 stop8h 41m

Ontario

Thu 6/11

10:59 pm-11:14 am

1 stop9h 15m

$627
Quickest round-trip

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Thu 4/2

5:43 am-11:47 am

1 stop9h 04m

Ontario

Tue 4/7

12:57 pm-10:33 pm

1 stop6h 36m

$656

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Mon 3/30

2:21 pm-9:00 pm

1 stop9h 39m

Ontario

Wed 4/1

12:57 pm-10:33 pm

1 stop6h 36m

$677
Cheapest one-way
Quickest one-way

JacksonvilleOntario

OAJ - ONT

OAJONT

Jacksonville Albert J Ellis

Wed 4/15

2:20 pm-6:33 pm

1 stop7h 13m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Jacksonville, North Carolina-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville, North Carolina-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville, North Carolina-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Jacksonville, North Carolina-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, North Carolina-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.
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, North Carolina to Ontario?

Currently, May is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Ontario (average of $249). Flying from Jacksonville, North Carolina to Ontario in June is currently the most expensive (average of $336). 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.

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 March 17, 2026.
Peruse reviews from past customers who have flown with Delta from Jacksonville to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,288 reviews

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,288 reviews
Delta
7.9
Good
8,288 reviews

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • How long is the flight from Jacksonville, North Carolina to Ontario?

    There are many flights that can get you from Jacksonville, North Carolina to Ontario in 9h 40m. Fly via Delta or American Airlines to get the fastest option. Airlines will cover a distance of 2262 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Jacksonville, North Carolina to Ontario round-trip?

    Delta, at $353, was found to be the cheapest airline from Jacksonville, North Carolina to Ontario.. This flight start at 38% lower than the current average price 3 months from now.

  • Can I find deals for flights from Jacksonville to Ontario that include hotel bookings?

    Yes. In addition to deals on Jacksonville to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Jacksonville to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Jacksonville to Ontario.

  • Can I find deals for business class flights from Jacksonville to Ontario?

    Yes. Cheapflights offers flight deals from Jacksonville to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Jacksonville, North Carolina to Ontario?

    Currently, May is the cheapest month in which you can book a flight from Jacksonville, North Carolina to Ontario (average of $249). Flying from Jacksonville, North Carolina to Ontario in June is currently the most expensive (average of $336). 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.

See more FAQs

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Alternative routes for Jacksonville to Ontario

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Top airline flying from Jacksonville to Ontario

Discover the top airline 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$353Average$507FlexibilityNo cancel feeOn-timeN/A

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