$111 Find Cheap Flights from Harrisburg 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 Harrisburg to Illinois departing on 5/28. 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 Harrisburg 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 Harrisburg to Illinois, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Harrisburg to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$255
Moline
Moline1 stop$324
Peoria
Peoria1 stop$309
Champaign
Champaign1 stop$493
St. Louis
St. Louis1 stop$291
Decatur
Decatur1 stop$536
Chicago
Chicago1 stop$255
Moline
Moline1 stop$324
Peoria
Peoria1 stop$309
Champaign
Champaign1 stop$493
St. Louis
St. Louis1 stop$291
Decatur
Decatur1 stop$536

Book Cheap Harrisburg 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 Harrisburg 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 Harrisburg to Illinois

Thu, May 28 - Sun, May 31
Multiple Airlines Logo
5:57 pm - 8:22 am
MDT
-
ORD
15h 25m
1 stop
Multiple Airlines Logo
8:05 am - 5:07 pm
ORD
-
MDT
8h 02m
1 stop
$255Multiple Airlines
Thu, May 28 - Sun, May 31
Multiple Airlines Logo
5:57 pm - 7:41 pm
MDT
-
ORD
26h 44m
2 stops
Multiple Airlines Logo
8:05 am - 5:07 pm
ORD
-
MDT
8h 02m
1 stop
$266Multiple Airlines
Fri, May 22 - Thu, May 28
American Airlines Logo
7:17 pm - 8:35 pm
MDT
-
ORD
2h 18mnonstop
American Airlines Logo
8:00 am - 11:07 am
ORD
-
MDT
2h 07mnonstop
$269American Airlines
Thu, May 21 - Sun, May 24
American Airlines Logo
6:00 am - 7:17 am
MDT
-
ORD
2h 17mnonstop
American Airlines Logo
8:00 am - 11:07 am
ORD
-
MDT
2h 07mnonstop
$270American Airlines
Sat, May 23 - Sun, May 24
American Airlines Logo
11:37 am - 12:57 pm
MDT
-
ORD
2h 20mnonstop
American Airlines Logo
8:00 am - 11:07 am
ORD
-
MDT
2h 07mnonstop
$271American Airlines
Fri, May 22 - Mon, May 25
American Airlines Logo
11:37 am - 12:57 pm
MDT
-
ORD
2h 20mnonstop
American Airlines Logo
5:00 am - 10:08 am
ORD
-
MDT
4h 08m
1 stop
$279American Airlines
Fri, Jun 19 - Mon, Jun 22
United Airlines Logo
6:30 am - 7:42 am
MDT
-
ORD
2h 12mnonstop
United Airlines Logo
6:25 pm - 9:29 pm
ORD
-
MDT
2h 04mnonstop
$281United Airlines
Thu, Jun 4 - Sun, Jun 7
United Airlines Logo
6:30 am - 7:42 am
MDT
-
ORD
2h 12mnonstop
United Airlines Logo
6:25 pm - 9:29 pm
ORD
-
MDT
2h 04mnonstop
$287United Airlines
Fri, May 22 - Tue, May 26
Delta Logo
5:00 pm - 8:14 pm
MDT
-
ORD
4h 14m
1 stop
Delta Logo
5:19 pm - 10:50 pm
ORD
-
MDT
4h 31m
1 stop
$289Delta
Sat, May 23 - Wed, May 27
Delta Logo
6:20 am - 8:43 am
MDT
-
MDW
3h 23m
1 stop
Delta Logo
5:12 pm - 11:51 pm
MDW
-
MDT
5h 39m
1 stop
$289Delta
Booking Insights

KAYAK's insights & trends for Harrisburg to Illinois flights

Get data-powered insights and trends into flights from Harrisburg 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 Harrisburg 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 Harrisburg to Illinois departing in May.

What is the cheapest Harrisburg to Illinois flight route?

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

The cheapest ticket to Illinois from Harrisburg found in the last 72 hours was to Chicago, at $277 round-trip. The most popular route is from Harrisburg (MDT) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $277.

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

The average price for all round-trip flights from Harrisburg 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 $358 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 afternoon, which is peak travel time and where the average cost of a ticket is $563.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Harrisburg 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 Harrisburg to Illinois is October, when tickets cost $135 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $209 and $209 respectively.

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

The average price of all round-trip flights from Harrisburg 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 Friday and more expensive on a Monday. On your return trip to Harrisburg, you should consider flying back on a Saturday, and avoid Mondays for better deals.

How far in advance should I book a flight from Harrisburg 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 Harrisburg 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 Harrisburg to Illinois, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$111
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Harrisburg to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Harrisburg 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 Harrisburg 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 Harrisburg 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 Harrisburg 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 Harrisburg 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 Harrisburg to the following destinations at these prices or less: Chicago $272 one-way - $380 round-trip

Reviews of the top 3 airlines serving from Harrisburg to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Harrisburg 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 Harrisburg 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 8460 reviews
7.2Food
7.8Entertainment
7.9Comfort
8.5Crew
8.1Boarding
Airline reviews

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

8.0 ExcellentMatthew, May 2026
OKC - ATL
Read more Delta reviews

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.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

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.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

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.

The captain announced to the cabin there would be a delay because they observed a "cut" on a tire during precheck that needed to be cleared by maintenance. We were delayed during this inspection and allowed to proceed after maintenance "measured the cut and decided it was acceptable". My complaint is not about the delay or due diligence. I wish the captain had been more generic when making his announcement. I was a nervous wreck all the way to Charlotte worried that we would have a blowout when landing!

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 Harrisburg to Illinois

Information on your arrival and departure airports