$98 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 5/12. 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$209
Moline
Moline1 stop$251
Peoria
Peoria1 stop$511
St. Louis
St. Louis1 stop$201
Chicago
Chicagononstop$209
Moline
Moline1 stop$251
Peoria
Peoria1 stop$511
St. Louis
St. Louis1 stop$201

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

Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
6:00 am - 11:45 am
ILM
-
STL
6h 45m
1 stop
American Airlines Logo
7:00 am - 12:35 pm
STL
-
ILM
4h 35m
1 stop
$201American Airlines
Thu, Jun 25 - Tue, Jun 30
United Airlines Logo
4:05 pm - 5:36 pm
ILM
-
ORD
2h 31mnonstop
United Airlines Logo
11:58 am - 2:54 pm
ORD
-
ILM
1h 56mnonstop
$209United Airlines
Wed, Mar 4 - Mon, Mar 9
Delta Logo
6:00 am - 9:54 am
ILM
-
MDW
4h 54m
1 stop
Delta Logo
6:00 am - 1:38 pm
MDW
-
ILM
6h 38m
1 stop
$229Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
6:00 am - 10:14 am
ILM
-
ORD
5h 14m
1 stop
Delta Logo
9:50 am - 4:58 pm
ORD
-
ILM
6h 08m
1 stop
$229Delta
Thu, Jun 25 - Mon, Jun 29
United Airlines Logo
7:30 am - 12:06 pm
ILM
-
ORD
5h 36m
1 stop
United Airlines Logo
11:58 am - 2:54 pm
ORD
-
ILM
1h 56mnonstop
$238United Airlines
Wed, Mar 4 - Mon, Mar 9
Delta Logo
5:46 pm - 10:31 pm
ILM
-
MDW
5h 45m
1 stop
Delta Logo
6:00 am - 1:38 pm
MDW
-
ILM
6h 38m
1 stop
$239Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
5:46 pm - 11:56 pm
ILM
-
ORD
7h 10m
1 stop
Delta Logo
5:30 am - 1:38 pm
ORD
-
ILM
7h 08m
1 stop
$239Delta
Thu, Jun 25 - Tue, Jun 30
United Airlines Logo
7:30 am - 12:06 pm
ILM
-
ORD
5h 36m
1 stop
United Airlines Logo
11:58 am - 2:54 pm
ORD
-
ILM
1h 56mnonstop
$245United Airlines
Sat, May 16 - Mon, May 18
Delta Logo
4:46 pm - 8:34 pm
ILM
-
ORD
4h 48m
1 stop
Delta Logo
8:10 am - 1:36 pm
ORD
-
ILM
4h 26m
1 stop
$249Delta
Sat, Apr 25 - Tue, Apr 28
American Airlines Logo
6:00 am - 12:21 pm
ILM
-
MLI
7h 21m
1 stop
American Airlines Logo
6:40 pm - 12:12 am
MLI
-
ILM
4h 32m
1 stop
$251American 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.

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 $249 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 $249.

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 $306, 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 August, when tickets cost $276 (return) on average. On the other hand, the most expensive months are April and November, when the average cost of round-trip tickets is $481 and $446 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 Saturday and more expensive on a Sunday. On your return trip to Wilmington, you should consider flying back on a Monday, 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 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$98
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly and prices are also 2% lower on average.
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.

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

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $299 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $394.

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 $188 one-way - $328 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 8179 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

2.0 MediocreJaspreet, Feb 2026
SEA - SMF
Read more Delta reviews

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

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

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

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

Information on your arrival and departure airports