HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$119+ Cheap flights from Harrisburg (MDT) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ORD
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harrisburg to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Harrisburg to Illinois

Cheapest flights from Harrisburg to Illinois
Explore the most affordable flight options available from Harrisburg to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:30 amMDT - ORD
Nonstop2h 20mUnited Airlines
Sat 1/39:05 pmORD - MDT
Nonstop2h 02mUnited Airlines
Deal found 12/12$245
This American Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:00 pmMDT - ORD
Nonstop2h 19mAmerican Airlines
Tue 12/302:22 pmORD - MDT
Nonstop2h 04mAmerican Airlines
Deal found 12/12$249
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:15 pmMDT - ORD
Nonstop2h 26mUnited Airlines
Tue 12/3011:05 amORD - MDT
Nonstop2h 03mUnited Airlines
Deal found 12/14$265
This American Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:00 amMDT - STL
1 stop4h 35mAmerican Airlines
Wed 12/317:05 amSTL - MDT
1 stop4h 32mAmerican Airlines
Deal found 12/13$269
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:34 pmMDT - ORD
Nonstop2h 21mUnited Airlines
Sat 1/107:10 amORD - MDT
Nonstop2h 03mUnited Airlines
Deal found 12/13$274
This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:30 amMDT - ORD
Nonstop2h 20mUnited Airlines
Mon 12/299:05 pmORD - MDT
Nonstop2h 02mUnited Airlines
Deal found 12/12$284
This American Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:42 amMDT - ORD
1 stop4h 21mAmerican Airlines
Sat 1/37:11 amORD - MDT
1 stop6h 46mAmerican Airlines
Deal found 12/12$285
This American Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amMDT - ORD
Nonstop2h 21mAmerican Airlines
Sat 12/278:54 pmORD - MDT
Nonstop2h 05mAmerican Airlines
Deal found 12/14$300
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amMDT - STL
1 stop5h 45mDelta
Tue 12/306:29 amSTL - MDT
1 stop4h 31mDelta
Deal found 12/13$319
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:00 amMDT - MDW
1 stop3h 49mDelta
Sat 1/105:31 pmMDW - MDT
1 stop4h 55mDelta
Deal found 12/13$339
This Delta deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:27 pmMDT - MDW
1 stop5h 20mDelta
Sat 1/105:31 pmMDW - MDT
1 stop4h 55mDelta
Deal found 12/13$349
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:00 amMDT - MDW
1 stop3h 49mDelta
Mon 12/296:08 pmMDW - MDT
1 stop3h 54mDelta
Deal found 12/14$354

Find flight deals from Harrisburg to Illinois

Keep the following information in mind while searching for Harrisburg to Illinois flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$209
(United Airlines)

One-way from

$119
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$277
Provider with most accurate pricing for Harrisburg-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harrisburg-Chicago (CHI) flights.
Search Deals
From Harrisburg to Illinois
Search Deals
One-way flight from Harrisburg to Illinois
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Harrisburg to Illinois that are best for you.

Fly from

Harrisburg

Fly to

Illinois

Route

Depart

Return

Price

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 1/29

6:30 am-7:50 am

Nonstop2h 20m

Chicago O'Hare Intl

Sun 2/1

6:10 pm-9:05 pm

Nonstop1h 55m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 1/30

5:10 pm-6:40 pm

Nonstop2h 30m

Chicago O'Hare Intl

Mon 2/2

9:00 pm-11:50 pm

Nonstop1h 50m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Mon 1/12

6:30 am-7:50 am

Nonstop2h 20m

Chicago O'Hare Intl

Sat 1/17

11:10 am-2:15 pm

Nonstop2h 05m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 1/9

6:15 am-9:43 am

1 stop4h 28m

Chicago O'Hare Intl

Sun 1/11

1:39 pm-4:34 pm

Nonstop1h 55m

$219

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 1/30

10:34 am-2:25 pm

1 stop4h 51m

Chicago O'Hare Intl

Mon 2/2

6:10 pm-9:05 pm

Nonstop1h 55m

$219

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 3/13

6:15 am-7:32 am

Nonstop2h 17m

Chicago O'Hare Intl

Sun 3/22

6:10 pm-9:05 pm

Nonstop1h 55m

$226

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Mon 1/12

6:02 pm-11:59 pm

1 stop6h 57m

Chicago O'Hare Intl

Thu 1/22

9:55 am-5:07 pm

1 stop6h 12m

$229

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 1/30

6:02 pm-11:55 pm

1 stop6h 53m

Chicago O'Hare Intl

Mon 2/2

5:35 pm-11:00 pm

1 stop4h 25m

$229

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Tue 1/13

6:02 pm-11:59 pm

1 stop6h 57m

Chicago O'Hare Intl

Mon 1/19

5:35 pm-10:56 pm

1 stop4h 21m

$229

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Tue 1/13

6:02 pm-10:07 pm

1 stop5h 05m

Chicago Midway

Wed 1/21

10:46 am-5:07 pm

1 stop5h 21m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 55 results
1
2
3
...
6

Best time to book a flight from Harrisburg to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Harrisburg with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Harrisburg to Illinois

What is the cheapest month to book a flight from Harrisburg to Illinois?

Currently, March is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $49). Flying from Harrisburg to Illinois in June is currently the most expensive (average of $133). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MDT to IL?

Find hourly flight availability from Harrisburg to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

It’s typically best to fly out from Harrisburg to Illinois in the evening. Doing so could potentially save you 62% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Harrisburg to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Harrisburg to Illinois flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated December 15, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Harrisburg to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,052 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harrisburg to Illinois?

    Harrisburg (MDT), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Harrisburg to Illinois.

  • How long is the flight from Harrisburg to Illinois?

    For as low as $209, United Airlines can have you in Illinois from Harrisburg in 2h 20m. Airlines will cover a distance of 592 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Harrisburg to Illinois?

    When deciding which route to take from Harrisburg to Illinois consider Harrisburg - Chicago O'Hare Intl, Harrisburg - Chicago Midway or Harrisburg - Lambert-St Louis as they are the most popular.

  • What are the most reliable airlines from Harrisburg to Illinois?

    Before booking your flight to Illinois from Harrisburg, check out the most reliable airlines to get you to your destination on time: Republic Airways (95%), Japan Airlines (82%), SkyWest Airlines( 77%).

  • What are the cheapest flights from Harrisburg to Illinois?

    While on average a flight from Harrisburg to Illinois is generally $433, our data shows the cheapest flight currently is $203. When looking at the most popular route, (Harrisburg - Chicago O'Hare Intl), you can expect to pay $209 for that flight.

  • Can I find deals for flights from Harrisburg to Illinois that include hotel bookings?

    Yes. In addition to deals on Harrisburg to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harrisburg to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Illinois.

  • Can I find deals for business class flights from Harrisburg to Illinois?

    Yes. Cheapflights offers flight deals from Harrisburg to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Harrisburg to Illinois?

    Currently, March is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $49). Flying from Harrisburg to Illinois in June is currently the most expensive (average of $133). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harrisburg to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to West Palm Beach flights
Newark to Orlando flights
John F Kennedy Intl to Dallas/Fort Worth flights
Newark to Las Vegas flights
Newark to Los Angeles flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Tampa flights
LaGuardia to Dallas/Fort Worth flights
Dulles Intl to Miami flights
LaGuardia to Orlando flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to San Francisco flights
LaGuardia to West Palm Beach flights
John F Kennedy Intl to O'Hare Intl flights
Dulles Intl to Orlando flights
Philadelphia to Orlando flights
Reagan-National to Miami flights
John F Kennedy Intl to New Orleans flights
LaGuardia to Atlanta flights
Newark to Sky Harbor Intl flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Hobby flights
Newark to Tampa flights
Dulles Intl to Fort Lauderdale flights
Dulles Intl to Las Vegas flights
Dulles Intl to Dallas/Fort Worth flights
Newark to Hobby flights
LaGuardia to Tampa flights
John F Kennedy Intl to Sky Harbor Intl flights
Reagan-National to Orlando flights
LaGuardia to Las Vegas flights
Newark to New Orleans flights
John F Kennedy Intl to Salt Lake City flights
Philadelphia to Miami flights
Reagan-National to Los Angeles flights
LaGuardia to Hobby flights
Newark to San Francisco flights
Philadelphia to Fort Lauderdale flights
John F Kennedy Intl to Seattle flights
LaGuardia to New Orleans flights

Top 3 airlines flying from Harrisburg to Illinois

Discover the top 3 airlines that operate flights from Harrisburg to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$207Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$375FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$353FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights