$113 Find Cheap Flights from Wilmington 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 Wilmington to Illinois departing on 8/24. 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
Chicago1 stop$254
Moline
Moline1 stop$363
Peoria
Peoria1 stop$419
St. Louis
St. Louis1 stop$241
Chicago
Chicago1 stop$254
Moline
Moline1 stop$363
Peoria
Peoria1 stop$419
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, Jul 25 - Tue, Jul 28
American Airlines Logo
8:00 pm - 11:58 pm
ILM
-
STL
4h 58m
1 stop
American Airlines Logo
6:55 am - 12:51 pm
STL
-
ILM
4h 56m
1 stop
$241American Airlines
Sat, Aug 15 - Sat, Aug 22
Delta Logo
6:00 am - 9:20 am
ILM
-
STL
4h 20m
1 stop
Delta Logo
3:44 pm - 10:06 pm
STL
-
ILM
5h 22m
1 stop
$242Delta
Mon, Aug 10 - Wed, Aug 12
Multiple Airlines Logo
3:39 pm - 12:15 pm
ILM
-
ORD
21h 36m
1 stop
Multiple Airlines Logo
5:13 pm - 8:42 pm
ORD
-
ILM
26h 29m
1 stop
$254Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
United Airlines Logo
3:41 pm - 5:29 pm
ILM
-
ORD
2h 48mnonstop
United Airlines Logo
12:18 pm - 3:37 pm
ORD
-
ILM
2h 19mnonstop
$269United Airlines
Sun, Aug 9 - Sun, Aug 16
American Airlines Logo
6:17 pm - 8:07 pm
ILM
-
ORD
2h 50mnonstop
American Airlines Logo
8:09 pm - 11:34 pm
ORD
-
ILM
2h 25mnonstop
$270American Airlines
Wed, Aug 5 - Mon, Aug 10
American Airlines Logo
3:31 pm - 10:11 pm
ILM
-
ORD
7h 40m
1 stop
American Airlines Logo
8:10 am - 11:32 am
ORD
-
ILM
2h 22mnonstop
$279American Airlines
Sun, Aug 9 - Sun, Aug 16
American Airlines Logo
7:00 am - 8:55 am
ILM
-
ORD
2h 55mnonstop
American Airlines Logo
6:49 am - 2:03 pm
ORD
-
ILM
6h 14m
1 stop
$280American Airlines
Fri, Aug 28 - Mon, Aug 31
Multiple Airlines Logo
3:39 pm - 12:50 pm
ILM
-
ORD
22h 11m
1 stop
Multiple Airlines Logo
8:05 am - 8:09 pm
ORD
-
ILM
11h 04m
1 stop
$282Multiple Airlines
Fri, Aug 14 - Mon, Aug 17
Delta Logo
6:47 pm - 10:36 pm
ILM
-
MDW
4h 49m
1 stop
Delta Logo
5:10 pm - 11:57 pm
MDW
-
ILM
5h 47m
1 stop
$289Delta
Sat, Nov 14 - Tue, Nov 17
United Airlines Logo
6:00 am - 12:40 pm
ILM
-
STL
7h 40m
1 stop
United Airlines Logo
4:56 pm - 11:40 pm
STL
-
ILM
5h 44m
1 stop
$321United 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 August.

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 5 days 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 5 days 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 $302 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 $402.

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 $308, 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 July, when the average cost of round-trip tickets is $278 and $248 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 Wednesday, and avoid Tuesdays 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 4 weeks before departure, which saves you about 20% 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$113
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 3% 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.

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 $288 one-way - $319 round-trip

Reviews of the top airlines flying 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.
7.4
United AirlinesOverall score based on 9896 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

2.0 MediocreRuss, Jun 2026
FOD - ORD
Read more United Airlines reviews

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

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.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

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.

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.

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.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

It was late, then the bathroom was inoperable plus it was very hot as well. Plane was very old

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!

Overall, I had a great flight on American Airlines. The only compliant that I have is that my gate changed 30 minutes before boarding the flight. This was annoying because I had a connection in Charlotte and it's a very big airport.

Our flight was delayed 45 minutes and we missed our connection, while we were able to get a flight the following day the voucher for food did not work.

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

Information on your arrival and departure airports