Which airport typically offers the quickest layover for flights from Jacksonville to Ontario?

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 2h 38m.

What’s the fastest layover option from Jacksonville to Ontario?

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 10h 15m.

What’s the cheapest layover airport for flights from Jacksonville to Ontario?

Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $250.

What’s the top layover airport for flights from Jacksonville to Ontario?

Dallas (DFW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Jacksonville to Ontario on Cheapflights.

How long is the flight from Jacksonville to Ontario?

There are many flights that can get you from Jacksonville to Ontario in 7h 01m. Fly via Delta to get the fastest option. The distance from Jacksonville to Ontario is about 2100 mi.

What are the cheapest airlines flying from Jacksonville to Ontario round-trip?

According to our current data, Delta ($204), United Airlines ($228), and American Airlines ($342) offers the cheapest pricing from Jacksonville to Ontario. Delta is priced at 56% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Jacksonville to Ontario one-way?

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Jacksonville to Ontario for a low price.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What are the most popular airlines that fly from Jacksonville to Ontario?

Before booking your flight from Jacksonville to Ontario check out the most popular airlines for this route: American Airlines, Southwest or Delta.

Most accurate provider : When it comes to deals on Jacksonville-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Jacksonville-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$100+ Flights from Jacksonville to Ontario

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Jacksonville to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Jacksonville to Ontario

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 December 2, 2025.

Wed 12/249:38 amJAX - ONT

1 stop14h 39mMultiple Airlines

Tue 12/306:17 pmONT - JAX

2 stops19h 17mMultiple Airlines

Deal found 11/30

$381

Wed 12/246:00 amJAX - ONT

1 stop7h 00mDelta

Tue 12/3010:29 pmONT - JAX

1 stop8h 43mDelta

Deal found 11/30

$394

Wed 12/244:20 pmJAX - ONT

1 stop7h 47mUnited Airlines

Mon 12/2911:59 pmONT - JAX

1 stop7h 58mUnited Airlines

Deal found 11/30

$424

Wed 12/2411:33 amJAX - ONT

2 stops14h 00mDelta

Mon 12/2910:29 pmONT - JAX

1 stop7h 17mDelta

Deal found 11/30

$429

Wed 12/174:08 pmJAX - ONT

1 stop9h 56mDelta

Sun 12/2810:29 pmONT - JAX

1 stop7h 19mDelta

Deal found 12/1

$432

Wed 12/179:38 amJAX - ONT

1 stop14h 39mMultiple Airlines

Sun 12/216:00 amONT - JAX

2 stops31h 27mMultiple Airlines

Deal found 12/1

$441

Wed 12/246:00 amJAX - ONT

1 stop7h 00mDelta

Wed 12/317:05 amONT - JAX

1 stop8h 49mDelta

Deal found 12/1

$444

Thu 12/187:05 amJAX - ONT

1 stop6h 57mDelta

Thu 12/2511:15 amONT - JAX

1 stop7h 10mDelta

Deal found 11/30

$454

Wed 12/247:30 amJAX - ONT

2 stops11h 37mAmerican Airlines

Mon 12/297:18 pmONT - JAX

2 stops10h 25mAmerican Airlines

Deal found 11/30

$457

Wed 12/177:49 amJAX - ONT

1 stop7h 11mAmerican Airlines

Sun 12/2111:59 pmONT - JAX

1 stop7h 18mAmerican Airlines

Deal found 12/1

$462

Best flights from Jacksonville to Ontario
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 December 2, 2025.

Wed 1/147:30 amJAX - ONT

1 stop7h 01mDelta

Wed 1/2110:30 pmONT - JAX

1 stop8h 47mDelta

Deal found 12/1

$257

Mon 2/233:52 pmJAX - ONT

1 stop8h 37mAmerican Airlines

Thu 2/2610:40 pmONT - JAX

1 stop7h 17mAmerican Airlines

Deal found 12/1

$361

Mon 2/163:05 pmJAX - ONT

2 stops11h 15mSouthwest

Fri 2/202:15 pmONT - JAX

1 stop5h 40mSouthwest

Deal found 12/1

$384

Wed 1/215:30 amJAX - ONT

1 stop9h 01mDelta

Wed 1/2810:30 pmONT - JAX

1 stop7h 09mDelta

Deal found 12/1

$257

Wed 1/217:30 amJAX - ONT

1 stop7h 01mDelta

Mon 2/210:30 pmONT - JAX

1 stop7h 11mDelta

Deal found 12/1

$289

Wed 1/217:30 amJAX - ONT

1 stop7h 01mDelta

Sat 1/3112:41 pmONT - JAX

1 stop6h 16mDelta

Deal found 12/1

$289

Wed 1/287:30 amJAX - ONT

1 stop7h 01mDelta

Thu 2/512:41 pmONT - JAX

1 stop6h 16mDelta

Deal found 12/1

$289

Wed 2/255:30 amJAX - ONT

2 stops9h 37mDelta

Mon 3/210:20 pmONT - JAX

1 stop7h 24mDelta

Deal found 12/1

$294

Sat 1/177:30 amJAX - ONT

1 stop7h 01mDelta

Mon 1/1910:30 pmONT - JAX

1 stop7h 09mDelta

Deal found 12/1

$321

Sun 1/256:30 amJAX - ONT

1 stop8h 01mDelta

Wed 2/410:30 pmONT - JAX

1 stop7h 09mDelta

Deal found 12/1

$347

Fri 2/203:58 pmJAX - ONT

1 stop8h 07mDelta

Tue 2/2410:20 pmONT - JAX

1 stop7h 24mDelta

Deal found 11/30

$359

Last-minute flights from Jacksonville to Ontario
Discover last-minute flight deals from Jacksonville to Ontario. Data last updated December 2, 2025 and is based on user searches.

Thu 12/1110:00 pmJAX - ONT

2 stops43h 25mFrontier

Thu 12/189:48 amONT - JAX

1 stop29h 13mFrontier

Deal found 12/2

$371

Wed 1/76:11 amJAX - ONT

1 stop8h 52mAmerican Airlines

Sun 1/111:28 pmONT - JAX

1 stop6h 37mAmerican Airlines

Deal found 12/2

$319

Tue 1/137:30 amJAX - ONT

1 stop7h 01mDelta

Wed 1/2112:41 pmONT - JAX

1 stop6h 16mDelta

Deal found 12/1

$257

Wed 1/144:17 pmJAX - ONT

1 stop7h 41mUnited Airlines

Wed 1/215:05 amONT - JAX

2 stops13h 42mUnited Airlines

Deal found 12/1

$348

Thu 1/155:30 amJAX - ONT

2 stops9h 46mDelta

Mon 1/1910:30 pmONT - JAX

1 stop8h 45mDelta

Deal found 12/2

$266

Sat 1/177:30 amJAX - ONT

1 stop7h 01mDelta

Mon 1/1910:30 pmONT - JAX

1 stop7h 09mDelta

Deal found 12/1

$321

Tue 1/205:05 pmJAX - ONT

1 stop7h 54mUnited Airlines

Wed 1/285:05 amONT - JAX

1 stop7h 10mUnited Airlines

Deal found 12/1

$343

Sun 1/256:30 amJAX - ONT

1 stop8h 01mDelta

Wed 2/410:30 pmONT - JAX

1 stop7h 09mDelta

Deal found 12/1

$347

Sun 1/257:30 amJAX - ONT

1 stop7h 01mDelta

Thu 2/512:41 pmONT - JAX

1 stop6h 16mDelta

Deal found 12/1

$379

Tue 1/277:30 amJAX - ONT

1 stop7h 01mDelta

Thu 2/512:41 pmONT - JAX

1 stop6h 16mDelta

Deal found 12/1

$289

One-way flights from Jacksonville to Ontario
Search for one-way flight options from Jacksonville to Ontario. Find affordable one-way fares based on user searches. Data last updated December 2, 2025.

Fri 1/307:18 pmJAX - ONT

2 stops31h 06mFrontier

Deal found 12/2

$100

Tue 1/205:50 amJAX - ONT

1 stop7h 30mSouthwest

Deal found 12/1

$101

Wed 1/75:50 amJAX - ONT

1 stop7h 30mSouthwest

Deal found 12/1

$105

Mon 1/126:27 pmJAX - ONT

2 stops50h 27mFrontier

Deal found 12/2

$106

Mon 12/153:41 pmJAX - ONT

2 stops32h 36mFrontier

Deal found 12/1

$108

Wed 2/41:35 pmJAX - ONT

2 stops10h 30mSouthwest

Deal found 12/1

$110

Thu 12/111:57 pmJAX - ONT

1 stop7h 38mFrontier

Deal found 12/1

$112

Mon 12/86:36 pmJAX - ONT

2 stops29h 41mFrontier

Deal found 11/29

$113

Fri 2/209:49 amJAX - ONT

2 stops41h 10mMultiple Airlines

Deal found 12/2

$114

Fri 12/1211:31 amJAX - ONT

1 stop9h 03mFrontier

Deal found 11/30

$116

Sun 2/86:55 pmJAX - ONT

2 stops44h 47mMultiple Airlines

Deal found 12/2

$117

Find flight deals from Jacksonville to Ontario

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$257 (Delta)
One-way from	$100 (Kiwi.com)
Popular in	August
Cheapest in	October
Average price	$601

Provider with most accurate pricing for Jacksonville-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Jacksonville-Ontario flights.

Search Deals

From Jacksonville to Ontario

Search Deals

One-way flight from Jacksonville to Ontario

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($22 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 1/14

7:30 am-11:31 am

1 stop7h 01m

Ontario

Wed 1/21

10:30 pm-10:17 am

1 stop8h 47m

$257

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 1/21

5:30 am-11:31 am

1 stop9h 01m

Ontario

Wed 1/28

10:30 pm-8:39 am

1 stop7h 09m

$257

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 1/21

7:30 am-11:31 am

1 stop7h 01m

Ontario

Mon 2/2

10:30 pm-8:41 am

1 stop7h 11m

$289

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 1/21

7:30 am-11:31 am

1 stop7h 01m

Ontario

Sat 1/31

12:41 pm-9:57 pm

1 stop6h 16m

$289

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 1/28

7:30 am-11:31 am

1 stop7h 01m

Ontario

Thu 2/5

12:41 pm-9:57 pm

1 stop6h 16m

$289

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Wed 2/25

5:30 am-12:07 pm

2 stops9h 37m

Ontario

Mon 3/2

10:20 pm-8:44 am

1 stop7h 24m

$294

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Sat 1/17

7:30 am-11:31 am

1 stop7h 01m

Ontario

Mon 1/19

10:30 pm-8:39 am

1 stop7h 09m

$321

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Sun 1/25

6:30 am-11:31 am

1 stop8h 01m

Ontario

Wed 2/4

10:30 pm-8:39 am

1 stop7h 09m

$347

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Fri 2/20

3:58 pm-9:05 pm

1 stop8h 07m

Ontario

Tue 2/24

10:20 pm-8:44 am

1 stop7h 24m

$359

JacksonvilleOntario

JAX - ONT

JAXONT

Jacksonville

Mon 2/23

3:52 pm-9:29 pm

1 stop8h 37m

Ontario

Thu 2/26

10:40 pm-8:57 am

1 stop7h 17m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 22 results

Compare providers for flights from Jacksonville to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Jacksonville to Ontario in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*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-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Jacksonville-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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

Prices

What is the cheapest month to book a flight from Jacksonville to Ontario?

Currently, October is the cheapest month in which you can book a flight from Jacksonville to Ontario (average of $126). Flying from Jacksonville to Ontario in March is currently the most expensive (average of $281). 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.

What is the cheapest time of day to fly from JAX to ONT?

A simple way to save on the total cost of your ticket is to fly from Jacksonville to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Southwest, Delta, and United 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.

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,253 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,011 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

9,063 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,045 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

How long is the flight from Jacksonville to Ontario?
There are many flights that can get you from Jacksonville to Ontario in 7h 01m. Fly via Delta to get the fastest option. The distance from Jacksonville to Ontario is about 2100 mi.
What are the cheapest airlines flying from Jacksonville to Ontario round-trip?
According to our current data, Delta ($204), United Airlines ($228), and American Airlines ($342) offers the cheapest pricing from Jacksonville to Ontario. Delta is priced at 56% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Jacksonville to Ontario one-way?
The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Jacksonville to Ontario for a low price.
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 to Ontario?
Currently, October is the cheapest month in which you can book a flight from Jacksonville to Ontario (average of $126). Flying from Jacksonville to Ontario in March is currently the most expensive (average of $281). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Jacksonville to Ontario

Orlando to Las Vegas flights

Fort Lauderdale to Las Vegas flights

Orlando to Los Angeles flights

Miami to Las Vegas flights

Tampa to Las Vegas flights

Miami to Los Angeles flights

Fort Lauderdale to Los Angeles flights

Orlando to San Francisco flights

Tampa to Los Angeles flights

Miami to San Francisco flights

Tampa to San Francisco flights

Fort Lauderdale to San Francisco flights

Miami to Ontario flights

Jacksonville to Las Vegas flights

West Palm Beach to Los Angeles flights

Fort Lauderdale to Santa Ana flights

Orlando to San Diego flights

West Palm Beach to Las Vegas flights

Orlando to Ontario flights

Orlando to Santa Ana flights

Fort Myers to Las Vegas flights

Miami to San Diego flights

Tampa to San Diego flights

Fort Lauderdale to Ontario flights

Miami to Santa Ana flights

Fort Lauderdale to Burbank flights

Jacksonville to Los Angeles flights

Fort Myers to Los Angeles flights

Pensacola to Las Vegas flights

Tampa to Santa Ana flights

Tampa to Ontario flights

Sarasota to Las Vegas flights

Jacksonville to San Diego flights

Orlando Sanford Intl to Las Vegas flights

Orlando to Sacramento flights

Tampa to Reno flights

West Palm Beach to Ontario flights

Orlando to San Jose flights

Orlando to Reno flights

Tampa to San Jose flights

Fort Lauderdale to San Diego flights

Jacksonville to San Francisco flights

Orlando to Burbank flights

Valparaiso to Las Vegas flights

Miami to Burbank flights

Miami to San Jose flights

Fort Myers to Ontario flights

Miami to Reno flights

Pensacola to San Francisco flights

Complete your trip

Ontario car rentals

Los Angeles Airport car rentals

Ontario Airport car rentals

Burbank Bob Hope Airport car rentals

Long Beach Municipal Airport car rentals

Los Angeles car rentals

San Diego car rentals

San Francisco car rentals

San Jose car rentals

Fresno car rentals

Sacramento car rentals

Burbank car rentals

Other flights to Ontario

Top 4 airlines flying from Jacksonville to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$204	Average$601	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$228	Average$361	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$342	Average$438	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$358	Average$419	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$100+ 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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Jacksonville to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Jacksonville to Ontario

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 December 2, 2025.

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 December 2, 2025.

Find flight deals from Jacksonville to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Jacksonville to Ontario that are best for you.

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 December.

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.

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?

What is the cheapest time of day to fly from JAX to ONT?

What’s the top layover airport for flights from Jacksonville to Ontario?

What’s the cheapest layover airport for flights from Jacksonville to Ontario?

What’s the fastest layover option from Jacksonville to Ontario?

Which airport typically offers the quickest layover for flights from Jacksonville to Ontario?

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Southwest, Delta, and United 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.

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 to Ontario?

What are the cheapest airlines flying from Jacksonville to Ontario round-trip?

What are the cheapest airlines to fly from Jacksonville to Ontario one-way?

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

How can I find direct flights from Jacksonville to Ontario?

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

What is the cheapest month to book a flight from Jacksonville to Ontario?

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.

Alternative routes for Jacksonville to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Jacksonville to Ontario

100% Free

Book with Flexibility

Travel Smart

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 December 2, 2025.