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$76+ Cheap flights from Illinois to Jacksonville (JAX)

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — JAX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Jacksonville

Keep the following information in mind while searching for Illinois to Jacksonville flight deals. Data was last updated September 17, 2025.

Round-trip from

$146
(United Airlines)

One-way from

$76
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$397

Good round-trip deal

$106 or less

Good one-way deal

$173 or less
From Illinois to Jacksonville
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One-way flight from Illinois to Jacksonville
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Jacksonville.
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Price to beat on a one-way flight from Illinois to Jacksonville.
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Find flight deals from Illinois to Jacksonville

Cheapest flights from Illinois to Jacksonville
Explore the most affordable flight options available from Illinois to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:20 amSTL - JAX
1 stop6h 14mUnited Airlines
Mon 11/174:57 pmJAX - STL
1 stop6h 25mUnited Airlines
Deal found 9/15$146
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:42 pmSTL - JAX
1 stop4h 48mAmerican Airlines
Thu 11/205:01 amJAX - STL
1 stop4h 26mAmerican Airlines
Deal found 9/14$159
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 10/81:35 pmSTL - JAX
1 stop8h 24mDelta
Sun 10/128:11 pmJAX - STL
1 stop4h 30mDelta
Deal found 9/15$177
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:00 amSTL - JAX
1 stop5h 39mUnited Airlines
Sat 10/188:00 amJAX - STL
1 stop7h 27mUnited Airlines
Deal found 9/15$191
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:05 amORD - JAX
1 stop11h 03mFrontier
Sun 10/126:05 pmJAX - ORD
1 stop6h 34mFrontier
Deal found 9/16$204
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:20 amMDW - JAX
1 stop4h 23mFrontier
Sun 10/512:38 pmJAX - MDW
1 stop4h 20mFrontier
Deal found 9/15$205
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:20 amMDW - JAX
1 stop4h 23mMultiple Airlines
Sun 9/285:27 pmJAX - MDW
1 stop21h 59mMultiple Airlines
Deal found 9/16$206
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:15 amMDW - JAX
1 stop6h 06mMultiple Airlines
Sun 9/285:27 pmJAX - MDW
1 stop21h 59mMultiple Airlines
Deal found 9/14$208
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:11 amORD - JAX
1 stop10h 02mFrontier
Sun 11/25:08 pmJAX - ORD
2 stops25h 17mFrontier
Deal found 9/15$209
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:07 amSTL - JAX
1 stop4h 06mFrontier
Sun 11/95:18 pmJAX - STL
2 stops20h 59mFrontier
Deal found 9/16$210
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:10 amORD - JAX
1 stop8h 11mFrontier
Mon 9/294:16 pmJAX - ORD
2 stops8h 54mFrontier
Deal found 9/14$212
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:10 amORD - JAX
1 stop5h 33mFrontier
Sun 10/196:05 pmJAX - ORD
2 stops31h 39mFrontier
Deal found 9/15$213

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Jacksonville 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 September 17, 2025.
Use the filters below to find and compare flights from Illinois to Jacksonville that are best for you.

Fly from

Illinois

Fly to

Jacksonville

Route

Depart

Return

Price

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 10/8

1:35 pm-10:59 pm

1 stop8h 24m

Jacksonville

Sun 10/12

8:11 pm-11:41 pm

1 stop4h 30m

$177

ChicagoJacksonville

ORD - JAX

ORDJAX

Chicago O'Hare Intl

Fri 10/10

10:08 am-5:59 pm

1 stop6h 51m

Jacksonville

Mon 10/13

6:35 am-12:10 pm

1 stop6h 35m

$225

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 11/14

8:20 am-3:34 pm

1 stop6h 14m

Jacksonville

Mon 11/17

1:55 pm-11:44 pm

2 stops10h 49m

$226

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 11/6

6:00 am-1:34 pm

1 stop6h 34m

Jacksonville

Sun 11/9

8:08 pm-11:40 pm

1 stop4h 32m

$228

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Thu 10/16

6:00 am-10:22 am

1 stop3h 22m

Jacksonville

Mon 10/20

8:11 pm-11:41 pm

1 stop4h 30m

$228

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 12/10

8:15 am-11:15 am

Nonstop2h 00m

Jacksonville

Mon 12/15

6:10 pm-7:30 pm

Nonstop2h 20m

$237

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Wed 10/15

6:00 am-10:22 am

1 stop3h 22m

Jacksonville

Thu 10/16

5:10 am-8:05 am

1 stop3h 55m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 11/15

11:44 am-5:33 pm

1 stop4h 49m

Jacksonville

Mon 11/17

5:28 pm-9:04 pm

1 stop4h 36m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Mon 11/17

10:45 am-5:27 pm

1 stop5h 42m

Jacksonville

Tue 11/18

6:38 pm-9:58 pm

1 stop4h 20m

$247

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 11/14

8:50 pm-11:45 pm

Nonstop1h 55m

Jacksonville

Thu 11/20

8:15 am-9:35 am

Nonstop2h 20m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Jacksonville

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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Jacksonville (average of $278). Flying from Illinois to Jacksonville in March is currently the most expensive (average of $365). 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 IL to JAX?

Find hourly flight availability from Illinois to Jacksonville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Jacksonville as you normally would.

Weekly flight availability from Illinois to Jacksonville

Explore weekly flight availability from Illinois to Jacksonville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 17, 2025.

The most flights from USIL to JAX are scheduled on a Monday (21 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Jacksonville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Jacksonville from Illinois?

    Jacksonville (JAX) is the airport you will fly into if you book a flight from Illinois to Jacksonville. It is only a 11.2 mi journey from Jacksonville (JAX) to Jacksonville’s city center.

  • How long is the flight from Illinois to Jacksonville?

    Delta, JetBlue, and United Airlines can get you from Illinois to Jacksonville in just under 6h 14m. Your travel time can differ by up to 2h 10m. The distance from Illinois to Jacksonville is about 753 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Illinois to Jacksonville are United Airlines ($76), Frontier ($134), and Southwest ($139).

  • What are the most popular routes from Illinois to Jacksonville?

    The most popular route from Illinois to Jacksonville is Chicago O'Hare Intl - Jacksonville. You may also consider Chicago Midway - Jacksonville or Lambert-St Louis - Jacksonville.

  • What are the most reliable airlines from Illinois to Jacksonville?

    The top 3 most reliable airlines when flying from Illinois to Jacksonville are Envoy Air (100%), Republic Airways (100%) and SkyWest Airlines (76%).

  • What are the cheapest flights from Illinois to Jacksonville?

    Looking at all options, your cheapest flight can be booked for $129. While the most popular route (Chicago O'Hare Intl - Jacksonville) can be booked for $217 on average, our data indicates $381 when flying from Illinois to Jacksonville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Jacksonville?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Jacksonville (average of $278). Flying from Illinois to Jacksonville in March is currently the most expensive (average of $365). 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

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Jacksonville Beach
Orange Park
Kingsland
Fernandina Beach
Waycross

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Alternative routes for Illinois to Jacksonville

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Top 6 airlines flying from Illinois to Jacksonville

Discover the top 6 airlines that operate flights from Illinois to Jacksonville. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$131Average$353FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$149Average$402FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$203Average$506FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$233Average$351FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$247Average$420FlexibilityNo cancel feeOn-time69%

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