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$79+ Cheap flights from Jacksonville (JAX) to Illinois

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Jacksonville to Illinois

Keep the following information in mind while searching for Jacksonville to Illinois flight deals. Data was last updated junio 12, 2025.

Round-trip from

$157
(Southwest)

One-way from

$79
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$397

Good round-trip deal

$334 or less

Good one-way deal

$178 or less
From Jacksonville to Illinois
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One-way flight from Jacksonville to Illinois
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Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Jacksonville to Illinois.
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Price to beat on a one-way flight from Jacksonville to Illinois.
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Find flight deals from Jacksonville to Illinois

Cheapest flights from Jacksonville to Illinois
Explore the most affordable flight options available from Jacksonville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/107:30 amJAX - STL
Nonstop2h 10mSouthwest
dom. 7/138:40 pmSTL - JAX
Nonstop2h 00mSouthwest
Deal found 6/12$157
This American Airlines deal was found by Cheapflights users on 6/9. 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.
mar. 7/88:30 pmJAX - STL
1 stop4h 29mAmerican Airlines
mar. 7/156:00 amSTL - JAX
1 stop4h 24mAmerican Airlines
Deal found 6/9$158
This Delta deal was found by Cheapflights users on 6/10. 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.
jue. 7/245:10 amJAX - STL
1 stop4h 12mDelta
dom. 7/277:11 pmSTL - JAX
1 stop4h 44mDelta
Deal found 6/10$177
This American Airlines deal was found by Cheapflights users on 6/11. 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.
vie. 8/227:16 amJAX - ORD
1 stop4h 55mAmerican Airlines
lun. 8/257:01 amORD - JAX
Nonstop2h 22mAmerican Airlines
Deal found 6/11$240
This Southwest deal was found by Cheapflights users on 6/10. 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.
lun. 8/254:05 pmJAX - MDW
1 stop6h 55mSouthwest
vie. 8/291:30 pmMDW - JAX
Nonstop2h 15mSouthwest
Deal found 6/10$240
This Booking.com deal was found by Cheapflights users on 6/10. 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.
jue. 7/107:49 pmJAX - MDW
1 stop4h 28mFrontier
jue. 7/176:20 amMDW - JAX
1 stop11h 34mFrontier
Deal found 6/10$242
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/109:44 amJAX - ORD
2 stops15h 09mMultiple Airlines
sáb. 7/125:38 pmORD - JAX
2 stops14h 16mMultiple Airlines
Deal found 6/11$245
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 7/294:30 pmJAX - ORD
Nonstop2h 45mUnited Airlines
lun. 8/46:26 pmORD - JAX
Nonstop2h 34mUnited Airlines
Deal found 6/10$246
This Delta deal was found by Cheapflights users on 6/10. 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.
sáb. 8/29:30 amJAX - ORD
1 stop6h 23mDelta
mié. 8/611:01 amORD - JAX
1 stop5h 04mDelta
Deal found 6/10$247
This Delta deal was found by Cheapflights users on 6/10. 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.
sáb. 8/210:42 amJAX - MDW
1 stop5h 55mDelta
mié. 8/69:25 amMDW - JAX
1 stop6h 40mDelta
Deal found 6/10$247
This American Airlines deal was found by Cheapflights users on 6/12. 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.
mié. 9/104:31 pmJAX - PIA
1 stop7h 58mAmerican Airlines
vie. 9/193:35 pmPIA - JAX
1 stop4h 15mAmerican Airlines
Deal found 6/12$249
This Southwest deal was found by Cheapflights users on 6/11. 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.
mié. 9/36:25 amJAX - ORD
1 stop7h 20mSouthwest
dom. 9/77:30 amORD - JAX
1 stop7h 45mSouthwest
Deal found 6/11$250

Cheapflights Fare Finder

Customize your flight search to find flights from Jacksonville to Illinois 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 junio 12, 2025.
Use the filters below to find and compare flights from Jacksonville to Illinois that are best for you.

Fly from

Jacksonville

Fly to

Illinois

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

jue. 7/10

7:30 am-8:40 am

Nonstop2h 10m

Lambert-St Louis

dom. 7/13

8:40 pm-11:40 pm

Nonstop2h 00m

$157

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

mar. 7/8

8:30 pm-11:59 pm

1 stop4h 29m

Lambert-St Louis

mar. 7/15

6:00 am-11:24 am

1 stop4h 24m

$158

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

jue. 7/24

5:10 am-8:22 am

1 stop4h 12m

Lambert-St Louis

dom. 7/27

7:11 pm-12:55 am

1 stop4h 44m

$177

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

jue. 7/10

7:49 pm-11:17 pm

1 stop4h 28m

Chicago Midway

dom. 7/13

6:20 am-6:54 pm

1 stop11h 34m

$235

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

mar. 8/5

1:20 pm-2:45 pm

Nonstop2h 25m

Chicago Midway

sáb. 8/9

5:30 pm-8:45 pm

Nonstop2h 15m

$237

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

vie. 8/22

2:51 pm-6:29 pm

1 stop4h 38m

Chicago O'Hare Intl

lun. 8/25

7:01 am-10:23 am

Nonstop2h 22m

$240

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

jue. 7/10

9:44 am-11:53 pm

2 stops15h 09m

Chicago O'Hare Intl

sáb. 7/12

5:38 pm-8:54 am

2 stops14h 16m

$245

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

mar. 7/29

4:30 pm-6:15 pm

Nonstop2h 45m

Chicago O'Hare Intl

lun. 8/4

6:26 pm-10:00 pm

Nonstop2h 34m

$246

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

sáb. 8/2

9:30 am-2:53 pm

1 stop6h 23m

Chicago O'Hare Intl

mié. 8/6

11:01 am-5:05 pm

1 stop5h 04m

$247

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

sáb. 8/2

10:42 am-3:37 pm

1 stop5h 55m

Chicago Midway

mié. 8/6

9:25 am-5:05 pm

1 stop6h 40m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 45 results
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Best time to book a flight from Jacksonville to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Jacksonville to Illinois (average of $245). Flying from Jacksonville to Illinois in March is currently the most expensive (average of $321). 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 IL?

Find hourly flight availability from Jacksonville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

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

Weekly flight availability from Jacksonville to Illinois

Explore weekly flight availability from Jacksonville to Illinois. 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 junio 12, 2025.

The most flights from JAX to USIL are scheduled on a Wednesday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated junio 12, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Jacksonville to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Allegiant Air
7.3
Good
725 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Jacksonville to Illinois. 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 from for flights from Jacksonville to Illinois?

    Most people fly from Jacksonville (JAX) if they book a flight from Jacksonville to Illinois. Jacksonville is conveniently located just 11.2 mi from Jacksonville’s city center.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $79. Southwest flights start at $79 while deals on American Airlines start at $80 one-way.

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

    The most popular flight routes from Jacksonville to Illinois are Jacksonville - Chicago O'Hare Intl, Jacksonville - Chicago Midway and Jacksonville - Lambert-St Louis.

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

    Before booking your flight to Illinois from Jacksonville, check out the most reliable airlines to get you to your destination on time: Republic Airways (100%), ANA (89%), SkyWest Airlines( 87%).

  • What are the cheapest flights from Jacksonville to Illinois?

    Looking for the cheapest flight from Jacksonville to Illinois? While on average our users pay $1,884, our data indicates the cheapest price to be $135. The most popular route (Jacksonville - Chicago O'Hare Intl), is priced around $182.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Jacksonville to Illinois (average of $245). Flying from Jacksonville to Illinois in March is currently the most expensive (average of $321). 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 Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Jacksonville to Illinois

Discover the top 5 airlines that operate flights from Jacksonville to Illinois. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$98Average$123FlexibilityNo cancel feeOn-time88%
DeltaCheapest$196Average$441FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$213Average$390FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$364FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$267Average$399FlexibilityNo cancel feeOn-time63%

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