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

Our cheapest airline available from Ontario to Jacksonville, North Carolina is Delta. Our recent data shows that you can find tickets from as low as $843 on this airline.

What is the cheapest day to fly from Ontario to Jacksonville, North Carolina?

Travelers seeking maximum savings on their Ontario to Jacksonville, North Carolina flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Jacksonville, North Carolina ranges from 2.8 - 7.1 inches per month. July is typically the wettest month, when rainfall can reach 7.1 in. April is typically the driest time to visit Jacksonville, North Carolina when rainfall is around 2.8 in.

If weather is an important factor for your trip to Jacksonville, North Carolina, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 44.6 F).

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

Thursday flights are generally found to be more expensive for flights from Ontario to Jacksonville, North Carolina. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Jacksonville, North Carolina.

What is the cheapest month to fly from Ontario to Jacksonville, North Carolina?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Jacksonville, North Carolina. Flights to Jacksonville, North Carolina from Ontario in May are about $522 on average during May, but can be found for as low as $366.

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

When flying from Ontario to Jacksonville, North Carolina, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 14% versus a flight in the morning.

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

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

How can I find direct flights from Ontario to Jacksonville?

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

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

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

$190+ Flights from Ontario to Jacksonville, NC

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Cheap flight deals from Ontario to Jacksonville

Round-trip from	$843 (Delta)
One-way from	$190 (Delta)
Popular in	November
Cheapest in	February
Average price	$552

From Ontario to Jacksonville Albert J Ellis

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One-way flight from Ontario to Jacksonville Albert J Ellis

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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Ontario to Jacksonville

Cheapest flights from Ontario to Jacksonville
Explore the most affordable flight options available from Ontario to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Thu 7/1711:40 amONT - OAJ

1 stop7h 36mDelta

Sat 7/195:50 amOAJ - ONT

1 stop7h 40mDelta

Deal found 7/2

$843

Best flights from Ontario to Jacksonville
Discover carefully curated flight deals from Ontario to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Thu 7/1711:40 amONT - OAJ

1 stop7h 36mDelta

Sat 7/195:50 amOAJ - ONT

1 stop7h 40mDelta

Deal found 7/2

$843

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

Thu 7/1711:40 amONT - OAJ

1 stop7h 36mDelta

Sat 7/195:50 amOAJ - ONT

1 stop7h 40mDelta

Deal found 7/2

$843

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

Tue 8/1211:45 amONT - OAJ

1 stop7h 30mDelta

Deal found 7/2

$190

Thu 8/711:59 pmONT - OAJ

2 stops11h 56mAmerican Airlines

Deal found 7/2

$207

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 7/17

11:40 am-10:16 pm

1 stop7h 36m

Jacksonville Albert J Ellis

Sat 7/19

5:50 am-10:30 am

1 stop7h 40m

$843

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Tue 8/12

11:45 am-10:15 pm

1 stop7h 30m

$190

OntarioJacksonville

ONT - OAJ

ONTOAJ

Ontario

Thu 8/7

11:59 pm-2:55 pm

2 stops11h 56m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Ontario to Jacksonville

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from Ontario 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 Ontario to Jacksonville

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $366). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $490). 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 Jacksonville

Get a feel of what it's like to fly with Delta and American Airlines from Ontario to Jacksonville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta

8.0

Very good

7,983 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

What is the cheapest airline to fly from Ontario to Jacksonville, North Carolina round-trip?
Our cheapest airline available from Ontario to Jacksonville, North Carolina is Delta. Our recent data shows that you can find tickets from as low as $843 on this airline.
Can I find deals for flights from Ontario to Jacksonville that include hotel bookings?
Yes. In addition to deals on Ontario to Jacksonville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Jacksonville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Jacksonville.
Can I find deals for business class flights from Ontario to Jacksonville?
Yes. Cheapflights offers flight deals from Ontario to Jacksonville 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 Ontario to Jacksonville, North Carolina?
Currently, August is the cheapest month in which you can book a flight from Ontario to Jacksonville, North Carolina (average of $366). Flying from Ontario to Jacksonville, North Carolina in December is currently the most expensive (average of $490). 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

Top 2 airlines flying from Ontario to Jacksonville

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$361	Average$446	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$402	Average$496	FlexibilityNo cancel fee	On-timeN/A

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$190+ Cheap flights from Ontario to Jacksonville, NC (ONT - OAJ)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Jacksonville with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Jacksonville

Round-trip from

One-way from

Popular in

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Average price

Find flight deals from Ontario to Jacksonville

Cheapest flights from Ontario to JacksonvilleExplore the most affordable flight options available from Ontario to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Explore the most affordable flight options available from Ontario to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to Jacksonville

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Jacksonville

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

Reviews of airlines servicing Jacksonville

Get a feel of what it's like to fly with Delta and American Airlines from Ontario to Jacksonville 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 Ontario to Jacksonville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

How can I find direct flights from Ontario to Jacksonville?

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

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

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 Ontario to Jacksonville

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

Top 2 airlines flying from Ontario to Jacksonville

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Cheapest flights from Ontario to Jacksonville
Explore the most affordable flight options available from Ontario to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.