$209 Find Cheap Flights from Jacksonville to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Illinois departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Jacksonville to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Illinois

Thu, Aug 13 - Sat, Aug 15
Delta Logo
6:48 pm - 11:57 pm
OAJ
-
ORD
6h 09m
1 stop
Delta Logo
8:05 am - 3:20 pm
ORD
-
OAJ
6h 15m
1 stop
$333Delta
Fri, Aug 21 - Tue, Aug 25
Delta Logo
6:00 am - 10:25 am
OAJ
-
MLI
5h 25m
1 stop
Delta Logo
6:00 am - 11:30 am
MLI
-
OAJ
4h 30m
1 stop
$345Delta
Thu, Oct 1 - Mon, Oct 5
Delta Logo
2:26 pm - 8:55 pm
OAJ
-
ORD
7h 29m
1 stop
Delta Logo
5:30 am - 11:15 am
ORD
-
OAJ
4h 45m
1 stop
$349Delta
Thu, Oct 1 - Mon, Oct 5
Delta Logo
12:00 pm - 6:45 pm
OAJ
-
ORD
7h 45m
1 stop
Delta Logo
7:05 am - 5:54 pm
ORD
-
OAJ
9h 49m
2 stops
$354Delta
Fri, Aug 21 - Tue, Aug 25
Delta Logo
6:00 am - 10:25 am
OAJ
-
MLI
5h 25m
1 stop
Delta Logo
6:00 am - 11:30 am
MLI
-
OAJ
4h 30m
1 stop
$356Delta
Thu, Oct 1 - Mon, Oct 5
Delta Logo
12:00 pm - 10:18 pm
OAJ
-
ORD
11h 18m
2 stops
Delta Logo
1:55 pm - 10:22 pm
ORD
-
OAJ
7h 27m
2 stops
$359Delta
Fri, Aug 21 - Tue, Aug 25
Delta Logo
6:00 am - 10:25 am
OAJ
-
MLI
5h 25m
1 stop
Delta Logo
6:00 am - 11:30 am
MLI
-
OAJ
4h 30m
1 stop
$369Delta
Fri, Aug 21 - Tue, Aug 25
American Airlines Logo
3:34 pm - 9:13 pm
OAJ
-
MLI
6h 39m
1 stop
American Airlines Logo
6:00 am - 3:06 pm
MLI
-
OAJ
8h 06m
2 stops
$374American Airlines
Sat, Aug 22 - Tue, Aug 25
American Airlines Logo
3:34 pm - 12:08 am
OAJ
-
MLI
9h 34m
2 stops
American Airlines Logo
6:00 am - 3:06 pm
MLI
-
OAJ
8h 06m
2 stops
$379American Airlines
Sat, Aug 22 - Tue, Aug 25
Delta Logo
4:15 pm - 10:19 pm
OAJ
-
MLI
7h 04m
1 stop
Delta Logo
6:00 am - 1:46 pm
MLI
-
OAJ
6h 46m
1 stop
$384Delta
Booking Insights

KAYAK's insights & trends for Jacksonville to Illinois flights

Get data-powered insights and trends into flights from Jacksonville to Illinois to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Jacksonville to Illinois?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Jacksonville to Illinois were found on Delta ($333) and American Airlines ($374).

Find deals

Good to know

Cheapest flight$209
Flight from Jacksonville to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Jacksonville to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Jacksonville to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Jacksonville to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Jacksonville to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Jacksonville to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Jacksonville to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Jacksonville to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Jacksonville to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Jacksonville to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Jacksonville to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11757 reviews
6.8Entertainment
7.9Crew
6.4Food
7.2Comfort
7.5Boarding
Airline reviews

The flight de-boarded after being informed of a 3 hour delay. The gate agent said we could go to lounge. The flight ended up boarding 20 minutes later and I missed it.

2.0 MediocreSophie, Jun 2026
LGA - ORD
Read more American Airlines reviews

The flight de-boarded after being informed of a 3 hour delay. The gate agent said we could go to lounge. The flight ended up boarding 20 minutes later and I missed it.

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

the food choice of packaged chips and popcorn was utterly ridiculous for first class

Our flight left on time and we arrived a few minutes early. Great service!

Everything you need to know for your flight from Jacksonville to Illinois

Information on your arrival and departure airports

Jacksonville (OAJ)