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Harrisburg

$106+ Cheap flights from Illinois to Harrisburg (MDT)

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MDT
Jul 17 — Jul 241
Fri 7/17
Fri 7/24
1 adult, Economy
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Cheap flight deals from Illinois to Harrisburg

Cheapest flights from Illinois to Harrisburg
Explore the most affordable flight options available from Illinois to Harrisburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2026.

This United Airlines deal was found by Cheapflights users on 6/13. 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.
Fri 7/176:25 pm
ORD
-
MDT
Nonstop2h 04m
United Airlines
Sun 7/196:30 am
MDT
-
ORD
Nonstop2h 12m
United Airlines
Deal found 6/13$269
This American Airlines deal was found by Cheapflights users on 6/15. 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.
Wed 7/229:18 pm
ORD
-
MDT
Nonstop2h 04m
American Airlines
Sun 7/267:45 pm
MDT
-
ORD
Nonstop2h 31m
American Airlines
Deal found 6/15$275
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 7/126:25 pm
ORD
-
MDT
Nonstop2h 04m
United Airlines
Sun 7/196:30 am
MDT
-
ORD
Nonstop2h 12m
United Airlines
Deal found 6/14$287
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/259:19 am
MDW
-
MDT
1 stop6h 39m
Delta
Sat 8/112:45 pm
MDT
-
MDW
1 stop6h 22m
Delta
Deal found 6/12$289
This Delta deal was found by Cheapflights users on 6/14. 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.
Fri 7/3111:30 am
ORD
-
MDT
1 stop4h 28m
Delta
Wed 8/53:04 pm
MDT
-
ORD
1 stop6h 51m
Delta
Deal found 6/14$289
This Delta deal was found by Cheapflights users on 6/16. 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.
Fri 7/310:51 am
STL
-
MDT
1 stop5h 46m
Delta
Sat 7/412:21 pm
MDT
-
STL
1 stop6h 02m
Delta
Deal found 6/16$291
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Sat 7/255:48 pm
STL
-
MDT
1 stop4h 22m
American Airlines
Sat 8/17:38 pm
MDT
-
STL
1 stop4h 54m
American Airlines
Deal found 6/17$292
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 7/106:25 pm
ORD
-
MDT
Nonstop2h 04m
United Airlines
Fri 7/175:55 pm
MDT
-
ORD
Nonstop2h 10m
United Airlines
Deal found 6/12$297
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 6/308:06 am
ORD
-
MDT
Nonstop2h 05m
American Airlines
Sat 7/47:00 am
MDT
-
ORD
1 stop8h 01m
American Airlines
Deal found 6/12$299
This Delta deal was found by Cheapflights users on 6/16. 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.
Fri 7/33:57 pm
STL
-
MDT
1 stop6h 58m
Delta
Tue 7/76:04 am
MDT
-
STL
1 stop4h 39m
Delta
Deal found 6/16$300
This Delta deal was found by Cheapflights users on 6/15. 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 8/46:42 pm
MDW
-
MDT
1 stop3h 39m
Delta
Sat 8/86:24 pm
MDT
-
MDW
1 stop5h 12m
Delta
Deal found 6/15$309
This Delta deal was found by Cheapflights users on 6/16. 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.
Fri 7/36:00 am
STL
-
MDT
1 stop4h 11m
Delta
Sun 7/56:04 am
MDT
-
STL
1 stop4h 33m
Delta
Deal found 6/16$315

Find flight deals from Illinois to Harrisburg

Keep the following information in mind while searching for Illinois to Harrisburg flight deals. Data was last updated June 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$106
(Kiwi.com)

Popular in

January

Cheapest in

May

Average price

$314
Provider with most accurate pricing for Chicago (CHI)-Harrisburg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Harrisburg flights.
Search Deals
From Illinois to Harrisburg
Search Deals
One-way flight from Illinois to Harrisburg
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Harrisburg 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 June 17, 2026.
Use the filters below to find and compare flights from Illinois to Harrisburg that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Thu 7/16

1:57 pm-4:56 pm

Nonstop1h 59m

Harrisburg

Sun 7/19

7:59 pm-11:31 pm

1 stop4h 32m

$279
Quickest round-trip

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 7/10

6:25 pm-9:29 pm

Nonstop2h 04m

Harrisburg

Fri 7/17

5:55 pm-7:05 pm

Nonstop2h 10m

$297

ChicagoHarrisburg

MDW - MDT

MDWMDT

Chicago Midway

Mon 8/24

6:42 pm-11:21 pm

1 stop3h 39m

Harrisburg

Sat 9/26

6:00 am-10:27 am

1 stop5h 27m

$309

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 7/24

5:18 pm-11:09 pm

1 stop4h 51m

Harrisburg

Sun 7/26

12:45 pm-6:29 pm

1 stop6h 44m

$309

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Sat 7/4

6:14 am-2:00 pm

1 stop6h 46m

Harrisburg

Mon 7/13

7:38 pm-11:32 pm

1 stop4h 54m

$360

ChicagoHarrisburg

MDW - MDT

MDWMDT

Chicago Midway

Fri 7/31

9:19 am-4:58 pm

1 stop6h 39m

Harrisburg

Sun 8/2

6:20 am-9:13 am

1 stop3h 53m

$364

ChicagoHarrisburg

MDW - MDT

MDWMDT

Chicago Midway

Thu 7/23

6:00 am-2:10 pm

1 stop7h 10m

Harrisburg

Tue 7/28

11:41 am-4:15 pm

1 stop5h 34m

$364

ChicagoHarrisburg

MDW - MDT

MDWMDT

Chicago Midway

Fri 7/17

9:19 am-4:58 pm

1 stop6h 39m

Harrisburg

Tue 7/21

11:41 am-4:15 pm

1 stop5h 34m

$364

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Fri 7/3

6:10 pm-11:10 pm

1 stop4h 00m

Harrisburg

Mon 7/6

6:22 pm-11:56 pm

1 stop6h 34m

$365

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Tue 8/18

12:59 pm-8:53 pm

1 stop6h 54m

Harrisburg

Sat 8/22

5:54 pm-10:00 pm

1 stop5h 06m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Harrisburg

Have a flexible travel schedule? Discover the best time to fly to Harrisburg from Illinois 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 Illinois to Harrisburg

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Harrisburg (average of $128). Flying from Illinois to Harrisburg in July is currently the most expensive (average of $259). 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 IL to MDT?

Find hourly flight availability from Illinois to Harrisburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 17, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Illinois to Harrisburg by exploring options for tickets in the evening.

Weekly flight availability from Illinois to Harrisburg

Explore weekly flight availability from Illinois to Harrisburg. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 17, 2026.

The most flights from USIL to MDT are scheduled on a Wednesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Illinois to Harrisburg?

How far ahead should I book a flight from Illinois to Harrisburg?

To ensure you get the cheapest price possible for a flight from Illinois to Harrisburg, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Harrisburg. Price data was last updated on June 13, 2026.

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Harrisburg. 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 into for flights to Harrisburg from Illinois?

    If you book a flight to Harrisburg from Illinois, you will be flying to Harrisburg, which is the city’s only airport. Harrisburg (MDT) is located 8.5 mi from the center of Harrisburg.

  • How long is the flight from Illinois to Harrisburg?

    For as low as $279, United Airlines can have you in Harrisburg from Illinois in 1h 59m. Illinois and Harrisburg are separated by a distance of 592 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

    The top 3 most reliable airlines when flying from Illinois to Harrisburg are Envoy Air (92%), GoJet (84%) and Republic Airways (80%).

  • What are the cheapest flights from Illinois to Harrisburg?

    While on average a flight from Illinois to Harrisburg is generally $354, our data shows the cheapest flight currently is $253. When looking at the most popular route, (Chicago O'Hare Intl - Harrisburg), you can expect to pay $269 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Harrisburg 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 Illinois to Harrisburg?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Harrisburg (average of $128). Flying from Illinois to Harrisburg in July is currently the most expensive (average of $259). 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

Traveling to a place near Harrisburg?

Book flights to Harrisburg if you plan to visit one of these locations
Mechanicsburg
Hershey
Camp Hill
Carlisle

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Alternative routes for Illinois to Harrisburg

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Harrisburg

Discover the top 2 airlines that operate flights from Illinois to Harrisburg. 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 June 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$389FlexibilityNo cancel feeOn-time69%

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