$137 Find Cheap Flights from Wilmington to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Wilmington to Illinois departing on 6/2. 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 Wilmington 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 Wilmington to Illinois, as well as popular online travel agencies
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Cheap Flights from Wilmington to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$269
Moline
Moline1 stop$447
Peoria
Peoria1 stop$404
St. Louis
St. Louis1 stop$241
Chicago
Chicagononstop$269
Moline
Moline1 stop$447
Peoria
Peoria1 stop$404
St. Louis
St. Louis1 stop$241

Book Cheap Wilmington 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 Wilmington 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 Wilmington to Illinois

Sat, Jun 13 - Wed, Jun 17
American Airlines Logo
7:19 pm - 11:59 pm
ILM
-
STL
5h 40m
1 stop
American Airlines Logo
6:15 am - 2:43 pm
STL
-
ILM
7h 28m
1 stop
$241American Airlines
Wed, Jul 1 - Sat, Jul 4
American Airlines Logo
3:32 pm - 5:11 pm
ILM
-
ORD
2h 39mnonstop
American Airlines Logo
8:15 am - 11:36 am
ORD
-
ILM
2h 21mnonstop
$269American Airlines
Thu, Jun 25 - Tue, Jun 30
American Airlines Logo
7:44 pm - 11:30 pm
ILM
-
ORD
4h 46m
1 stop
American Airlines Logo
8:13 am - 11:39 am
ORD
-
ILM
2h 26mnonstop
$279American Airlines
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
3:41 pm - 5:29 pm
ILM
-
ORD
2h 48mnonstop
United Airlines Logo
11:30 am - 2:56 pm
ORD
-
ILM
2h 26mnonstop
$283United Airlines
Fri, Aug 14 - Mon, Aug 17
Delta Logo
6:48 pm - 10:36 pm
ILM
-
MDW
4h 48m
1 stop
Delta Logo
12:46 pm - 6:02 pm
MDW
-
ILM
4h 16m
1 stop
$289Delta
Fri, May 29 - Tue, Jun 2
American Airlines Logo
3:37 pm - 5:18 pm
ILM
-
ORD
2h 41mnonstop
American Airlines Logo
11:45 am - 3:07 pm
ORD
-
ILM
2h 22mnonstop
$289American Airlines
Wed, May 27 - Mon, Jun 1
Delta Logo
6:00 am - 11:56 am
ILM
-
MDW
6h 56m
1 stop
Delta Logo
6:23 am - 1:36 pm
MDW
-
ILM
6h 13m
1 stop
$309Delta
Thu, May 28 - Mon, Jun 1
United Airlines Logo
4:20 pm - 9:21 pm
ILM
-
STL
6h 01m
1 stop
United Airlines Logo
7:22 am - 2:56 pm
STL
-
ILM
6h 34m
1 stop
$314United Airlines
Tue, Jun 30 - Thu, Jul 2
Multiple Airlines Logo
10:46 am - 11:49 pm
ILM
-
STL
14h 03m
1 stop
Multiple Airlines Logo
6:31 pm - 1:25 pm
STL
-
ILM
17h 54m
2 stops
$333Multiple Airlines
Thu, Jun 11 - Mon, Jun 15
Multiple Airlines Logo
4:30 pm - 11:49 pm
ILM
-
STL
8h 19m
1 stop
Multiple Airlines Logo
5:06 pm - 2:58 pm
STL
-
ILM
20h 52m
2 stops
$354Multiple Airlines
Booking Insights

KAYAK's insights & trends for Wilmington to Illinois flights

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

How much is a round-trip flight from Wilmington to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Wilmington to Illinois departing in July.

What is the cheapest Wilmington to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Wilmington found in the last 72 hours was to Chicago, at $269 round-trip. The most popular route is from Wilmington (ILM) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $269.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Wilmington to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $340 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $387.

Can I save money by flying with a layover from Wilmington to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $349, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Wilmington to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Wilmington to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Wilmington to Illinois is February, when tickets cost $166 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $278 and $237 respectively.

What’s the cheapest day of the week to fly from Wilmington to Illinois?

The average price of all round-trip flights from Wilmington to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Thursday and more expensive on a Sunday. On your return trip to Wilmington, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Wilmington to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Wilmington to Illinois, you should book around 5 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$131
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Wilmington to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Wilmington 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 Wilmington to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Wilmington 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 Wilmington 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 Wilmington 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 Wilmington 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 Wilmington to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Wilmington to the following destinations at these prices or less: Chicago $313 one-way - $332 round-trip

Reviews of the top 3 airlines serving from Wilmington to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Wilmington 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 Wilmington 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.
7.9
DeltaOverall score based on 8452 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
7.8Comfort
Airline reviews

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

6.0 GoodRafiq, May 2026
ATL - GSP
Read more Delta reviews

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

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

Information on your arrival and departure airports