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Illinois

$85+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — ORD
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Harrisburg to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$138
(Frontier)

One-way from

$85
(CheapOair)
From Harrisburg to Illinois
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One-way flight from Harrisburg to Illinois
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Find 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 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:10 amMDT - STL
2 stops8h 27mAmerican Airlines
Fri 1/32:27 pmSTL - MDT
1 stop6h 26mAmerican Airlines
Deal found 12/17$263
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/2411:00 amMDT - ORD
Nonstop2h 24mAmerican Airlines
Tue 12/319:00 amORD - MDT
Nonstop1h 59mAmerican Airlines
Deal found 12/17$325
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/195:45 pmMDT - STL
1 stop4h 57mDelta
Sun 12/225:17 pmSTL - MDT
1 stop5h 16mDelta
Deal found 12/17$338
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/2511:00 amMDT - PIA
1 stop4h 14mAmerican Airlines
Tue 12/316:00 amPIA - MDT
1 stop14h 53mAmerican Airlines
Deal found 12/17$403
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:10 amMDT - MLI
2 stops10h 32mAmerican Airlines
Sat 1/412:35 pmMLI - MDT
1 stop7h 08mAmerican Airlines
Deal found 12/17$423
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/206:30 amMDT - MLI
1 stop4h 48mUnited Airlines
Thu 1/25:39 pmMLI - MDT
1 stop4h 23mUnited Airlines
Deal found 12/17$429
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/319:20 amMDT - MLI
1 stop8h 54mAllegiant Air
Sun 1/56:42 pmMLI - MDT
1 stop13h 39mAllegiant Air
Deal found 12/17$444
This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/213:47 pmMDT - STL
1 stop8h 41mFrontier
Mon 12/235:45 pmSTL - MDT
1 stop18h 14mFrontier
Deal found 12/17$448
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:37 amMDT - EVV
1 stop4h 41mAmerican Airlines
Thu 1/23:01 pmEVV - MDT
1 stop6h 10mAmerican Airlines
Deal found 12/17$473
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:10 amMDT - MDW
1 stop3h 40mDelta
Mon 12/306:00 amMDW - MDT
1 stop4h 34mDelta
Deal found 12/17$481
This United deal was found by Cheapflights users on 12/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:00 pmMDT - STL
1 stop6h 23mUnited Airlines
Thu 12/265:30 pmSTL - MDT
1 stop4h 26mUnited Airlines
Deal found 12/18$484
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:50 pmMDT - ORD
2 stops10h 02mDelta
Tue 12/315:30 pmORD - MDT
1 stop4h 16mDelta
Deal found 12/17$486

Find flights from Harrisburg to Illinois within your budget

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 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Sat 1/11

1:33 pm-11:27 pm

1 stop10h 54m

Lambert-St Louis

Sun 1/19

8:22 am-6:52 pm

1 stop9h 30m

$138

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sun 2/2

7:41 am-9:10 am

Nonstop2h 29m

Chicago O'Hare Intl

Tue 2/11

8:00 am-10:59 am

Nonstop1h 59m

$235

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Wed 1/15

6:00 pm-11:37 pm

1 stop6h 37m

Lambert-St Louis

Sat 2/8

11:50 am-5:19 pm

1 stop4h 29m

$248

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sat 1/11

6:10 pm-9:15 pm

1 stop4h 05m

Chicago O'Hare Intl

Thu 1/16

6:15 am-4:14 pm

2 stops8h 59m

$255

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Tue 12/31

6:10 am-1:37 pm

2 stops8h 27m

Lambert-St Louis

Fri 1/3

2:27 pm-9:53 pm

1 stop6h 26m

$263

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Mon 1/13

5:37 pm-6:55 pm

Nonstop2h 18m

Chicago O'Hare Intl

Tue 1/14

6:15 pm-9:13 pm

Nonstop1h 58m

$281

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Mon 1/13

6:00 pm-10:20 pm

1 stop5h 20m

Chicago Midway

Tue 1/14

6:00 am-12:20 pm

1 stop5h 20m

$298

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Sat 1/18

6:30 am-12:05 pm

1 stop6h 35m

Lambert-St Louis

Fri 1/24

2:55 pm-9:13 pm

1 stop5h 18m

$318

HarrisburgMoline

MDT - MLI

MDTMLI

Harrisburg

Wed 1/1

6:30 am-10:18 am

1 stop4h 48m

Moline Quad-City

Sat 1/4

3:45 pm-11:04 pm

1 stop6h 19m

$368

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 2/7

2:01 pm-4:10 pm

3 stops27h 09m

Chicago O'Hare Intl

Sun 2/9

6:06 pm-8:24 am

1 stop13h 18m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 25 results
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2
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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.

Travel insights for flights from Harrisburg to Illinois

Get recent, data-driven insights about flights from Harrisburg to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $232). Flying from Harrisburg to Illinois in June is currently the most expensive (average of $308). 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 18, 2024.

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 18, 2024.
Read through reviews of airlines operating flights from Harrisburg to Illinois, such as American Airlines, United Airlines and Delta. 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
8.0
Very good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
9,059 reviews
Delta
8.0
Very good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Allegiant Air
7.4
Good
829 reviews
Delta
8.0
Very good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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

Frontier
6.1
Okay
3,479 reviews
Delta
8.0
Very good
8,604 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 10

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 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.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $85. Users have also found prices from $96 and $105 on United Airlines and Delta, respectively.

  • 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 (100%), Japan Airlines (97%), Piedmont Airlines( 93%).

  • What are the cheapest flights from Harrisburg to Illinois?

    While on average a flight from Harrisburg to Illinois is generally $996, our data shows the cheapest flight currently is $192. When looking at the most popular route, (Harrisburg - Chicago O'Hare Intl), you can expect to pay $210 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, September is the cheapest month in which you can book a flight from Harrisburg to Illinois (average of $232). Flying from Harrisburg to Illinois in June is currently the most expensive (average of $308). 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.

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Alternative routes for Harrisburg to Illinois

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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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$181Average$488FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$200Average$342FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$210Average$456FlexibilityNo cancel feeOn-time71%
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