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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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MDT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Harrisburg

Keep the following information in mind while searching for Illinois to Harrisburg flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$209
(United Airlines)

One-way from

$110
(Booking.com)

Popular in

November

Cheapest in

December

Average price

$325
Provider with most accurate pricing for Chicago (CHI)-Harrisburg flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Harrisburg flights.
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From Illinois to Harrisburg
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One-way flight from Illinois to Harrisburg
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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 5/306:28 pmORD - MDT
Nonstop1h 57mUnited Airlines
Wed 9/310:50 amMDT - ORD
Nonstop2h 14mUnited Airlines
Deal found 4/30$209
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:03 pmORD - MDT
1 stop16h 20mFrontier
Sun 6/811:23 amMDT - ORD
1 stop13h 47mFrontier
Deal found 4/30$220
This Delta deal was found by Cheapflights users on 4/30. 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 5/307:10 amORD - MDT
2 stops9h 03mDelta
Fri 6/65:58 pmMDT - ORD
1 stop7h 00mDelta
Deal found 4/30$234
This Delta deal was found by Cheapflights users on 4/29. 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 5/271:55 pmMDW - MDT
2 stops7h 48mDelta
Tue 6/36:00 amMDT - MDW
1 stop6h 53mDelta
Deal found 4/29$234
This American Airlines deal was found by Cheapflights users on 4/30. 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 7/48:02 amORD - MDT
Nonstop1h 53mAmerican Airlines
Tue 7/811:27 amMDT - ORD
Nonstop2h 16mAmerican Airlines
Deal found 4/30$245
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 6/1110:30 amSTL - MDT
1 stop4h 45mDelta
Sat 6/145:00 pmMDT - STL
1 stop4h 30mDelta
Deal found 4/30$249
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/303:01 pmORD - MDT
2 stops28h 21mMultiple Airlines
Fri 6/68:49 pmMDT - ORD
2 stops27h 40mMultiple Airlines
Deal found 4/30$266
This American Airlines deal was found by Cheapflights users on 4/30. 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 6/74:06 pmPIA - MDT
1 stop6h 23mAmerican Airlines
Sun 6/86:00 amMDT - PIA
1 stop4h 35mAmerican Airlines
Deal found 4/30$294
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:06 pmPIA - MDT
1 stop14h 05mAllegiant Air
Sun 6/89:17 pmMDT - PIA
2 stops18h 53mAllegiant Air
Deal found 4/30$318
This United Airlines deal was found by Cheapflights users on 4/29. 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 8/13:39 pmPIA - MDT
1 stop6h 17mUnited Airlines
Sun 8/36:30 amMDT - PIA
1 stop4h 49mUnited Airlines
Deal found 4/29$319
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/18:25 amSTL - MDT
1 stop4h 09mUnited Airlines
Sat 5/38:10 amMDT - STL
1 stop5h 09mUnited Airlines
Deal found 4/30$328
This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/19:12 pmMDW - MDT
1 stop12h 16mFrontier
Sun 8/311:06 amMDT - MDW
1 stop10h 16mFrontier
Deal found 4/29$342

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 May 1, 2025.
Use the filters below to find and compare flights from Illinois to Harrisburg that are best for you.

Fly from

Illinois

Fly to

Harrisburg

Route

Depart

Return

Price

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 5/30

6:28 pm-9:25 pm

Nonstop1h 57m

Harrisburg

Wed 9/3

10:50 am-12:04 pm

Nonstop2h 14m

$209

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Wed 6/4

5:03 pm-10:23 am

1 stop16h 20m

Harrisburg

Sun 6/8

11:23 am-12:10 am

1 stop13h 47m

$220

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 5/30

7:10 am-5:13 pm

2 stops9h 03m

Harrisburg

Fri 6/6

5:58 pm-11:58 pm

1 stop7h 00m

$234

ChicagoHarrisburg

MDW - MDT

MDWMDT

Chicago Midway

Tue 5/27

1:55 pm-10:43 pm

2 stops7h 48m

Harrisburg

Tue 6/3

6:00 am-11:53 am

1 stop6h 53m

$234

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 7/4

8:02 am-10:55 am

Nonstop1h 53m

Harrisburg

Tue 7/8

11:27 am-12:43 pm

Nonstop2h 16m

$245

St. LouisHarrisburg

STL - MDT

STLMDT

Lambert-St Louis

Wed 6/11

10:30 am-4:15 pm

1 stop4h 45m

Harrisburg

Sat 6/14

5:00 pm-8:30 pm

1 stop4h 30m

$249

ChicagoHarrisburg

ORD - MDT

ORDMDT

Chicago O'Hare Intl

Fri 5/30

3:01 pm-8:22 pm

2 stops28h 21m

Harrisburg

Fri 6/6

8:49 pm-11:29 pm

2 stops27h 40m

$266

PeoriaHarrisburg

PIA - MDT

PIAMDT

Greater Peoria

Sat 6/7

4:06 pm-11:29 pm

1 stop6h 23m

Harrisburg

Sun 6/8

6:00 am-9:35 am

1 stop4h 35m

$294

PeoriaHarrisburg

PIA - MDT

PIAMDT

Greater Peoria

Sat 6/7

6:06 pm-9:11 am

1 stop14h 05m

Harrisburg

Sun 6/8

9:17 pm-3:10 pm

2 stops18h 53m

$318

PeoriaHarrisburg

PIA - MDT

PIAMDT

Greater Peoria

Fri 8/1

3:39 pm-10:56 pm

1 stop6h 17m

Harrisburg

Sun 8/3

6:30 am-10:19 am

1 stop4h 49m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 23 results
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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, January is the cheapest month in which you can book a flight from Illinois to Harrisburg (average of $355). Flying from Illinois to Harrisburg in June is currently the most expensive (average of $453). 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 May 1, 2025.

When flying from Illinois to Harrisburg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 May 1, 2025.

The most flights from USIL to MDT are scheduled on a Thursday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Harrisburg by month

Plan your trip to Harrisburg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Harrisburg ranges from 2.7 - 4.1 inches per month. May is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Harrisburg when rainfall is around 2.7 in.

Temperature in Harrisburg by month

Plan your trip to Harrisburg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Harrisburg, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Harrisburg

Get insights into the airlines that provide service to Harrisburg. 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 Harrisburg. Reviews last updated May 1, 2025.
Read through reviews of airlines operating flights from Illinois to Harrisburg, such as Delta, United Airlines and Allegiant Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,287 reviews
Delta
8.0
Very good
7,934 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines to fly from Illinois to Harrisburg one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $110. Users have also found prices from $165 and $175 on United Airlines and American Airlines, respectively.

  • 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 Republic Airways (95%), Envoy Air (83%) and GoJet (80%).

  • What are the cheapest flights from Illinois to Harrisburg?

    While on average a flight from Illinois to Harrisburg is generally $289, our data shows the cheapest flight currently is $134. When looking at the most popular route, (Chicago O'Hare Intl - Harrisburg), you can expect to pay $209 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, January is the cheapest month in which you can book a flight from Illinois to Harrisburg (average of $355). Flying from Illinois to Harrisburg in June is currently the most expensive (average of $453). 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 Illinois?

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

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$198Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$213Average$355FlexibilityNo cancel feeOn-time71%

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