Cheap flights from Illinois to Jacksonville from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Jacksonville departing on 2/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Jacksonville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:22 pm - 6:27 pm
STL
-
JAX
21h 05m
1 stop
Frontier Logo
10:51 pm - 11:49 am
JAX
-
STL
13h 58m
2 stops
$203Frontier
Fri, Feb 27 - Thu, Mar 5
Frontier Logo
3:49 pm - 6:44 pm
STL
-
JAX
25h 55m
2 stops
Frontier Logo
4:39 pm - 1:19 pm
JAX
-
STL
21h 40m
1 stop
$211Frontier
Sun, Mar 1 - Sun, Mar 8
United Airlines Logo
7:00 am - 3:32 pm
STL
-
JAX
7h 32m
1 stop
United Airlines Logo
3:07 pm - 9:05 pm
JAX
-
STL
6h 58m
1 stop
$215United Airlines
Sat, Feb 28 - Sat, Mar 7
United Airlines Logo
9:55 am - 8:14 pm
STL
-
JAX
9h 19m
2 stops
United Airlines Logo
3:07 pm - 9:05 pm
JAX
-
STL
6h 58m
1 stop
$220United Airlines
Sat, Feb 28 - Sat, Mar 7
American Airlines Logo
2:56 pm - 10:58 pm
BMI
-
JAX
7h 02m
1 stop
American Airlines Logo
5:01 pm - 10:41 pm
JAX
-
BMI
6h 40m
1 stop
$269American Airlines
Thu, Mar 5 - Tue, Mar 10
Southwest Logo
9:10 am - 3:45 pm
MDW
-
JAX
5h 35m
1 stop
Southwest Logo
7:40 am - 9:10 am
JAX
-
MDW
2h 30mnonstop
$270Southwest
Tue, Apr 7 - Thu, Apr 23
Delta Logo
5:12 pm - 11:59 pm
MLI
-
JAX
5h 47m
1 stop
Delta Logo
5:39 pm - 10:35 pm
JAX
-
MLI
5h 56m
1 stop
$271Delta
Sat, Apr 18 - Wed, Apr 22
Southwest Logo
2:10 pm - 9:25 pm
MDW
-
JAX
6h 15m
2 stops
Southwest Logo
6:25 pm - 7:55 pm
JAX
-
MDW
2h 30mnonstop
$272Southwest
Sat, Feb 28 - Sat, Mar 7
American Airlines Logo
2:56 pm - 11:59 pm
BMI
-
JAX
8h 03m
2 stops
American Airlines Logo
6:59 pm - 11:48 pm
JAX
-
BMI
5h 49m
1 stop
$274American Airlines
Thu, Mar 5 - Tue, Mar 10
Delta Logo
5:01 pm - 10:58 pm
MLI
-
JAX
4h 57m
1 stop
Delta Logo
7:04 pm - 10:24 pm
JAX
-
MLI
4h 20m
1 stop
$275Delta
Sat, Feb 28 - Wed, Mar 4

United Airlines flights from Illinois to Jacksonville

Our best United Airlines deals on Illinois to Jacksonville flight tickets
United Airlines
Feb 28
STL7:00 amLambert-St Louis
7h 32m
1 stop
JAX3:32 pmJacksonville
Mar 7
JAX3:07 pmJacksonville
6h 58m
1 stop
STL9:05 pmLambert-St Louis
$215
United Airlines
Feb 28
STL9:55 amLambert-St Louis
9h 19m
2 stops
JAX8:14 pmJacksonville
Mar 7
JAX3:07 pmJacksonville
6h 58m
1 stop
STL9:05 pmLambert-St Louis
$220
United Airlines
Mar 26
ORD7:01 amChicago O'Hare Intl
2h 27m
JAX10:28 amJacksonville
Mar 31
JAX8:00 amJacksonville
2h 50m
ORD9:50 amChicago O'Hare Intl
$276

Southwest flights from Illinois to Jacksonville

Our best Southwest deals on Illinois to Jacksonville flight tickets
Southwest
Apr 7
MDW9:10 amChicago Midway
5h 35m
1 stop
JAX3:45 pmJacksonville
Apr 23
JAX7:40 amJacksonville
2h 30m
MDW9:10 amChicago Midway
$270
Southwest
Feb 28
MDW2:10 pmChicago Midway
6h 15m
2 stops
JAX9:25 pmJacksonville
Mar 7
JAX6:25 pmJacksonville
2h 30m
MDW7:55 pmChicago Midway
$272
Southwest
Feb 21
MDW8:00 amChicago Midway
2h 20m
JAX11:20 amJacksonville
Feb 23
JAX6:00 pmJacksonville
2h 30m
MDW7:30 pmChicago Midway
$275

momondo 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, momondo users made 832,500 searches. Data last updated February 2, 2026.
Use the filters below to find and compare flights from Illinois to Jacksonville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Fri 2/27

8:22 pm-6:27 pm

1 stop21h 05m

Jacksonville

Thu 3/5

10:51 pm-11:49 am

2 stops13h 58m

$203

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sun 3/1

3:49 pm-6:44 pm

2 stops25h 55m

Jacksonville

Sun 3/8

4:39 pm-1:19 pm

1 stop21h 40m

$211

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 2/28

7:00 am-3:32 pm

1 stop7h 32m

Jacksonville

Sat 3/7

3:07 pm-9:05 pm

1 stop6h 58m

$215

St. LouisJacksonville

STL - JAX

STLJAX

Lambert-St Louis

Sat 2/28

9:55 am-8:14 pm

2 stops9h 19m

Jacksonville

Sat 3/7

3:07 pm-9:05 pm

1 stop6h 58m

$220

BloomingtonJacksonville

BMI - JAX

BMIJAX

Bloomington-Normal

Thu 3/5

2:56 pm-10:58 pm

1 stop7h 02m

Jacksonville

Tue 3/10

5:01 pm-10:41 pm

1 stop6h 40m

$269

ChicagoJacksonville

MDW - JAX

MDWJAX

Chicago Midway

Tue 4/7

9:10 am-3:45 pm

1 stop5h 35m

Jacksonville

Thu 4/23

7:40 am-9:10 am

Nonstop2h 30m

$270

MolineJacksonville

MLI - JAX

MLIJAX

Moline Quad-City

Sat 4/18

5:12 pm-11:59 pm

1 stop5h 47m

Jacksonville

Wed 4/22

5:39 pm-10:35 pm

1 stop5h 56m

$271

ChicagoJacksonville

MDW - JAX

MDWJAX

Chicago Midway

Sat 2/28

2:10 pm-9:25 pm

2 stops6h 15m

Jacksonville

Sat 3/7

6:25 pm-7:55 pm

Nonstop2h 30m

$272

BloomingtonJacksonville

BMI - JAX

BMIJAX

Bloomington-Normal

Thu 3/5

2:56 pm-11:59 pm

2 stops8h 03m

Jacksonville

Tue 3/10

6:59 pm-11:48 pm

1 stop5h 49m

$274

MolineJacksonville

MLI - JAX

MLIJAX

Moline Quad-City

Sat 2/28

5:01 pm-10:58 pm

1 stop4h 57m

Jacksonville

Wed 3/4

7:04 pm-10:24 pm

1 stop4h 20m

$275

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Jacksonville from

How to get the cheapest flight ticket from Illinois to Jacksonville

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 Jacksonville?

If you are unable to visit Jacksonville during the month of August, then departing from Illinois during the month September is also very affordable. Most momondo users find prices during this month for around $305.

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

According to our data, Saturday is the cheapest day to fly to Jacksonville from Illinois. The lowest ticket price found for a Saturday departure recently was $343. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $403.

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

Flying to Jacksonville from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $339 when looking at flights departing at noon. Flights to Jacksonville are more costly in the afternoon, with an average ticket price of $375. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Illinois to Jacksonville flight route?

Fly from Belleville to Jacksonville for the best Illinois - Jacksonville flight prices

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

You are more likely to see cheaper flights to Jacksonville from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Jacksonville for around $363 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Jacksonville from Illinois for as low as $311 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Jacksonville 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 Illinois to Jacksonville flights?

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

Cheap Illinois to Jacksonville flight deals and tips

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

Best Price Found

$127

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Jacksonville

1 airport
The best one-way flight to Jacksonville from Illinois in the past 72 hours is $127. The best round-trip flight deal from Illinois to Jacksonville found on momondo in the last 72 hours is $280.
The fastest flight from Illinois to Jacksonville takes 1h 55m
Direct flights go from Illinois to Jacksonville every day.
There is 1 airport in Jacksonville. From Illinois there are direct flights to Jacksonville (JAX).
  • When did momondo last update prices for flights from Illinois to Jacksonville Airport?

    Prices for flights from Illinois to Jacksonville Airport were last updated today.

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

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

    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 Illinois to Jacksonville Airport.

  • What documentation or ID do you need to fly to Jacksonville Airport?

    The travel and health documents required for your trip to Jacksonville Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Jacksonville Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Illinois to Jacksonville

Compare and see reviews for airlines that fly from Illinois to Jacksonville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $86Free CancellationRating
7.2
707 reviews
Search Allegiant Air flights
FrontierPriceFrom $112Free CancellationRating
5.7
3,050 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,129 reviews
Search Delta flights
SouthwestPriceFrom $203Free CancellationRating
8.0
4,271 reviews
Search Southwest flights
United AirlinesPriceFrom $247Free CancellationRating
7.4
9,229 reviews
Search United Airlines flights
JetBluePriceFrom $254Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Fernandina Beach
Jacksonville Beach
Orange Park
Kingsland
Ponte Vedra Beach
Waycross
Atlantic Beach
Neptune Beach
St Johns
Yulee
Cumberland Island

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Jacksonville for you.

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

Yes. momondo allows you to filter the results for Illinois to Jacksonville flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Jacksonville from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Illinois to Jacksonville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Wed 3/4
Wed 3/11

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