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Cheap flights from Jacksonville to Illinois from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Jacksonville to Illinois departing on 3/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Jacksonville to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:35 am - 11:09 am
JAX
-
STL
4h 34m
1 stop
Delta Logo
6:59 pm - 12:02 am
STL
-
JAX
4h 03m
1 stop
$236Delta
Tue, Apr 7 - Thu, Apr 9
Delta Logo
6:30 am - 11:09 am
JAX
-
STL
5h 39m
1 stop
Delta Logo
4:41 pm - 11:59 pm
STL
-
JAX
6h 18m
1 stop
$248Delta
Tue, Apr 7 - Fri, Apr 17
American Airlines Logo
5:45 am - 7:49 am
JAX
-
ORD
3h 04mnonstop
American Airlines Logo
7:53 pm - 11:31 pm
ORD
-
JAX
2h 38mnonstop
$252American Airlines
Wed, Apr 8 - Mon, Apr 13
Southwest Logo
7:20 am - 8:50 am
JAX
-
MDW
2h 30mnonstop
Southwest Logo
6:50 pm - 10:05 pm
MDW
-
JAX
2h 15mnonstop
$252Southwest
Wed, Apr 8 - Mon, Apr 13
United Airlines Logo
8:00 am - 12:22 pm
JAX
-
STL
5h 22m
1 stop
United Airlines Logo
9:10 am - 8:02 pm
STL
-
JAX
9h 52m
2 stops
$253United Airlines
Wed, Apr 8 - Fri, Apr 10
Frontier Logo
5:28 pm - 10:44 pm
JAX
-
ORD
6h 16m
1 stop
Frontier Logo
7:40 am - 7:33 pm
ORD
-
JAX
34h 53m
2 stops
$253Frontier
Thu, Apr 9 - Sun, Apr 12
American Airlines Logo
7:34 am - 1:25 pm
JAX
-
ORD
6h 51m
1 stop
American Airlines Logo
1:54 pm - 7:29 pm
ORD
-
JAX
4h 35m
1 stop
$255American Airlines
Wed, Apr 29 - Sat, May 9
Southwest Logo
7:20 am - 8:50 am
JAX
-
MDW
2h 30mnonstop
Southwest Logo
12:45 pm - 8:05 pm
MDW
-
JAX
6h 20m
1 stop
$256Southwest
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
7:03 pm - 11:44 pm
JAX
-
ORD
5h 41m
1 stop
United Airlines Logo
12:55 pm - 8:02 pm
ORD
-
JAX
6h 07m
1 stop
$257United Airlines
Tue, May 5 - Wed, May 6
Frontier Logo
6:08 pm - 10:19 pm
JAX
-
MDW
5h 11m
1 stop
Frontier Logo
6:00 am - 7:22 pm
MDW
-
JAX
12h 22m
1 stop
$258Frontier
Thu, May 7 - Fri, May 15

American Airlines flights from Jacksonville to Illinois

Our best American Airlines deals on Jacksonville to Illinois flight tickets
American Airlines
Apr 8
JAX5:45 amJacksonville
3h 04m
ORD7:49 amChicago O'Hare Intl
Apr 13
ORD7:53 pmChicago O'Hare Intl
2h 38m
JAX11:31 pmJacksonville
$252
American Airlines
Apr 29
JAX7:34 amJacksonville
6h 51m
1 stop
ORD1:25 pmChicago O'Hare Intl
May 9
ORD1:54 pmChicago O'Hare Intl
4h 35m
1 stop
JAX7:29 pmJacksonville
$255
American Airlines
Apr 9
JAX5:45 amJacksonville
3h 04m
ORD7:49 amChicago O'Hare Intl
Apr 14
ORD7:22 amChicago O'Hare Intl
5h 23m
1 stop
JAX1:45 pmJacksonville
$256

United Airlines flights from Jacksonville to Illinois

Our best United Airlines deals on Jacksonville to Illinois flight tickets
United Airlines
Apr 8
JAX8:00 amJacksonville
5h 22m
1 stop
STL12:22 pmLambert-St Louis
Apr 10
STL9:10 amLambert-St Louis
9h 52m
2 stops
JAX8:02 pmJacksonville
$253
United Airlines
May 5
JAX7:03 pmJacksonville
5h 41m
1 stop
ORD11:44 pmChicago O'Hare Intl
May 6
ORD12:55 pmChicago O'Hare Intl
6h 07m
1 stop
JAX8:02 pmJacksonville
$257
United Airlines
Apr 23
JAX11:32 amJacksonville
2h 51m
ORD1:23 pmChicago O'Hare Intl
Apr 27
ORD10:36 amChicago O'Hare Intl
2h 37m
JAX2:13 pmJacksonville
$259

momondo 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, momondo users made 832,500 searches. Data last updated February 28, 2026.
Use the filters below to find and compare flights from Jacksonville to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Tue 4/7

7:35 am-11:09 am

1 stop4h 34m

Lambert-St Louis

Thu 4/9

6:59 pm-12:02 am

1 stop4h 03m

$236

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Tue 4/7

6:30 am-11:09 am

1 stop5h 39m

Lambert-St Louis

Fri 4/17

4:41 pm-11:59 pm

1 stop6h 18m

$248

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

Wed 4/8

5:45 am-7:49 am

Nonstop3h 04m

Chicago O'Hare Intl

Mon 4/13

7:53 pm-11:31 pm

Nonstop2h 38m

$252

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

Wed 4/8

7:20 am-8:50 am

Nonstop2h 30m

Chicago Midway

Mon 4/13

6:50 pm-10:05 pm

Nonstop2h 15m

$252

JacksonvilleSt. Louis

JAX - STL

JAXSTL

Jacksonville

Wed 4/8

8:00 am-12:22 pm

1 stop5h 22m

Lambert-St Louis

Fri 4/10

9:10 am-8:02 pm

2 stops9h 52m

$253

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

Thu 4/9

5:28 pm-10:44 pm

1 stop6h 16m

Chicago O'Hare Intl

Sun 4/12

7:40 am-7:33 pm

2 stops34h 53m

$253

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

Wed 4/29

7:34 am-1:25 pm

1 stop6h 51m

Chicago O'Hare Intl

Sat 5/9

1:54 pm-7:29 pm

1 stop4h 35m

$255

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

Wed 4/15

7:20 am-8:50 am

Nonstop2h 30m

Chicago Midway

Sat 4/18

12:45 pm-8:05 pm

1 stop6h 20m

$256

JacksonvilleChicago

JAX - ORD

JAXORD

Jacksonville

Tue 5/5

7:03 pm-11:44 pm

1 stop5h 41m

Chicago O'Hare Intl

Wed 5/6

12:55 pm-8:02 pm

1 stop6h 07m

$257

JacksonvilleChicago

JAX - MDW

JAXMDW

Jacksonville

Thu 5/7

6:08 pm-10:19 pm

1 stop5h 11m

Chicago Midway

Fri 5/15

6:00 am-7:22 pm

1 stop12h 22m

$258

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Jacksonville to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Jacksonville is in September. Flight prices, which tend to average around $287, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $291.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Jacksonville to Illinois is on a Thursday when prices can be found for as low as $403. Flights from Jacksonville to Illinois on a Sunday will generally be more expensive and average around $655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Jacksonville to Illinois during this time can be as low as $393. Flights at noon are often more expensive with an average ticket price of $549.

What is the cheapest Jacksonville to Illinois flight route?

Fly from Jacksonville to Chicago O'Hare Intl for the best Jacksonville - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Jacksonville when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $353 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Jacksonville for as low as $280 on momondo.

What cabin class options are available on Jacksonville to Illinois flights?

There are 4 cabin classes available to choose from on Jacksonville to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Jacksonville to Illinois flights?

No. A direct flight is the cheapest option for a flight between Jacksonville to Illinois.

Cheap Jacksonville to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Jacksonville to Illinois

Best Price Found

$184

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Jacksonville in the past 72 hours is $184. The best round-trip flight deal from Jacksonville to Illinois found on momondo in the last 72 hours is $347.
The fastest flight from Jacksonville to Illinois takes 2h 10m
Direct flights go from Jacksonville to Illinois every day.
There are 98 airports in Illinois. From Jacksonville there are direct flights to Chicago Midway (MDW), Lambert-St Louis (STL).
Search flight deals

  • When did momondo last update prices for flights from Jacksonville Airport to Illinois?

    Prices for flights from Jacksonville Airport to Illinois refresh daily.

  • How many operators does momondo search for flights from Jacksonville Airport to Illinois?

  • How old do you have to be to fly from Jacksonville Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Jacksonville Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Jacksonville to Illinois?

Best airlines flying from Jacksonville to Illinois

Compare and see reviews for airlines that fly from Jacksonville to Illinois with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $121Free CancellationRating
7.9
8,244 reviews
Search Delta flights
FrontierPriceFrom $136Free CancellationRating
5.7
3,040 reviews
Search Frontier flights
American AirlinesPriceFrom $179Free CancellationRating
7.1
11,370 reviews
Search American Airlines flights
SouthwestPriceFrom $203Free CancellationRating
8.0
4,303 reviews
Search Southwest flights
United AirlinesPriceFrom $231Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Jacksonville to Illinois?

Finding the right flight to Illinois from Jacksonville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Jacksonville to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Jacksonville on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Jacksonville to Illinois?

momondo helps you find the best flight between Jacksonville and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Jacksonville to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Jacksonville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Illinois trip

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