HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$80+ Cheap flights from Harrisburg (MDT) to Chicago (CHI)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — CHI
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harrisburg to Chicago 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.

Cheapflights Tip: The best prices from Harrisburg to Chicago are usually found in January or February, booked 90 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap flight deals from Harrisburg to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Chicago (CHI). 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 September 16, 2025.

Round-trip from

$209
(American Airlines)

One-way from

$80
(Frontier)

Popular in

May

Cheapest in

January

Average price

$319
From Harrisburg to Chicago (CHI)
Search Deals
One-way flight from Harrisburg to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Harrisburg to Chicago

Cheapest flights from Harrisburg to Chicago
Explore the most affordable flight options available from Harrisburg to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 10/153:30 pmMDT - ORD
Nonstop2h 15mAmerican Airlines
Sat 10/188:39 pmORD - MDT
Nonstop2h 09mAmerican Airlines
Deal found 9/15$209
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:07 amMDT - ORD
1 stop9h 37mFrontier
Sun 9/218:49 pmORD - MDT
1 stop12h 13mFrontier
Deal found 9/14$212
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/411:31 amMDT - ORD
Nonstop2h 14mAmerican Airlines
Sat 10/1812:09 pmORD - MDT
Nonstop1h 51mAmerican Airlines
Deal found 9/14$219
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:57 amMDT - ORD
2 stops14h 13mFrontier
Thu 10/28:49 pmORD - MDT
1 stop12h 23mFrontier
Deal found 9/15$226
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:30 amMDT - ORD
Nonstop2h 07mUnited Airlines
Mon 10/66:20 pmORD - MDT
Nonstop2h 05mUnited Airlines
Deal found 9/16$229
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/236:00 amMDT - MDW
1 stop4h 40mDelta
Mon 10/276:23 pmMDW - MDT
1 stop3h 37mDelta
Deal found 9/14$229
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:30 amMDT - ORD
Nonstop2h 14mUnited Airlines
Sun 12/77:10 amORD - MDT
Nonstop1h 56mUnited Airlines
Deal found 9/15$230
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:30 amMDT - ORD
Nonstop2h 14mUnited Airlines
Sun 11/97:10 amORD - MDT
Nonstop1h 56mUnited Airlines
Deal found 9/15$238
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/2312:33 pmMDT - ORD
1 stop4h 38mDelta
Sun 10/265:20 amORD - MDT
1 stop4h 39mDelta
Deal found 9/15$239
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:15 amMDT - ORD
1 stop6h 31mUnited Airlines
Sat 10/187:10 amORD - MDT
Nonstop2h 04mUnited Airlines
Deal found 9/15$240
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 10/248:11 pmMDT - ORD
Nonstop2h 13mAmerican Airlines
Sun 10/265:00 amORD - MDT
1 stop3h 56mAmerican Airlines
Deal found 9/13$248
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/178:11 pmMDT - ORD
Nonstop2h 13mAmerican Airlines
Sun 10/198:00 amORD - MDT
Nonstop1h 57mAmerican Airlines
Deal found 9/15$249

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg to Chicago 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 September 16, 2025.
Use the filters below to find and compare flights from Harrisburg to Chicago that are best for you.

Fly from

Harrisburg

Fly to

Chicago

Route

Depart

Return

Price

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 12/26

6:30 am-7:50 am

Nonstop2h 20m

Chicago O'Hare Intl

Sun 12/28

9:05 pm-12:07 am

Nonstop2h 02m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 10/23

6:00 am-7:12 am

Nonstop2h 12m

Chicago O'Hare Intl

Mon 10/27

8:39 pm-11:48 pm

Nonstop2h 09m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sat 10/18

2:33 pm-6:30 pm

1 stop4h 57m

Chicago O'Hare Intl

Tue 10/21

6:20 pm-9:25 pm

Nonstop2h 05m

$219

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Tue 10/14

6:25 pm-11:58 pm

1 stop6h 33m

Chicago O'Hare Intl

Tue 10/21

4:05 pm-11:08 pm

1 stop6h 03m

$229

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Thu 10/23

6:00 am-9:40 am

1 stop4h 40m

Chicago Midway

Mon 10/27

6:23 pm-11:00 pm

1 stop3h 37m

$229

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Thu 10/30

6:00 am-9:45 am

1 stop4h 45m

Chicago Midway

Tue 11/4

5:09 pm-11:08 pm

1 stop4h 59m

$229

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 11/6

6:30 am-7:44 am

Nonstop2h 14m

Chicago O'Hare Intl

Sun 11/9

7:10 am-10:06 am

Nonstop1h 56m

$238

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 10/24

6:25 pm-11:58 pm

1 stop6h 33m

Chicago O'Hare Intl

Sun 10/26

5:20 am-10:59 am

1 stop4h 39m

$239

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 10/23

12:33 pm-4:11 pm

1 stop4h 38m

Chicago O'Hare Intl

Sun 10/26

5:20 am-10:59 am

1 stop4h 39m

$239

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Wed 11/5

6:25 pm-10:14 pm

1 stop4h 49m

Chicago Midway

Tue 11/11

10:47 am-6:09 pm

1 stop6h 22m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Harrisburg to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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 Chicago

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

Use this chart to determine the optimal time to book a round-trip flight from Harrisburg to Chicago. Price data was last updated on September 12, 2025.

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Harrisburg to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Harrisburg to Chicago (average of $245). Flying from Harrisburg to Chicago in March is currently the most expensive (average of $321). 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 CHI?

Find hourly flight availability from Harrisburg to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s typically best to fly out from Harrisburg to Chicago in the evening. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Chicago. Price data was last updated on November 10, 2024.

Travelers seeking maximum savings on their Harrisburg to Chicago flight should consider departing on Saturday 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.

Weekly flight availability from Harrisburg to Chicago

Explore weekly flight availability from Harrisburg to Chicago. 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 September 16, 2025.

The most flights from MDT to CHI are scheduled on a Monday (15 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 Harrisburg to Chicago?

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Harrisburg to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to Chicago. 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 Chicago?

    Harrisburg (MDT), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Harrisburg to Chicago. 3 airlines have flights from Harrisburg to Chicago on a regular basis. Booking flights from Harrisburg to Chicago should not be difficult; the airport handles an average of 12 outbound flights to Chicago per day.

  • How long is the flight from Harrisburg to Chicago?

    A quick flight from Harrisburg to Chicago can take about 2h 12m. United Airlines provides one of the quickest options available for as low as $209. The distance from Harrisburg to Chicago is about 592 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Harrisburg to Chicago round-trip?

    Currently priced at $207, American Airlines will fly you from Harrisburg to Chicago and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $209 and $221, respectively. These flights start at 33% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $143 on Frontier. Other airlines that offer cheap prices include American Airlines from $184 and Delta from $234 one-way.

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

    Consider Qatar Airways (93%), American Airlines (75%) or Envoy Air (75%) when booking your flight. These represent the most reliable airlines when flying from Harrisburg to Chicago.

  • What are the cheapest flights from Harrisburg to Chicago?

    Looking at all options, your cheapest flight can be booked for $129. While the most popular route (Harrisburg - Chicago O'Hare Intl) can be booked for $209 on average, our data indicates $710 when flying from Harrisburg to Chicago.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Harrisburg to Chicago (average of $245). Flying from Harrisburg to Chicago in March is currently the most expensive (average of $321). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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 Chicago

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Newark to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
John F Kennedy Intl to Midway flights
LaGuardia to Midway flights
Newark to Midway flights
Dulles Intl to Midway flights
Philadelphia to Midway flights
Reagan-National to Midway flights
John F Kennedy Intl to St. Louis flights
LaGuardia to St. Louis flights
Newark to St. Louis flights
Reagan-National to St. Louis flights
Dulles Intl to St. Louis flights
Pittsburgh to O'Hare Intl flights
Philadelphia to St. Louis flights
Scranton to O'Hare Intl flights
Harrisburg to O'Hare Intl flights
Allentown to O'Hare Intl flights
Pittsburgh to Midway flights
Allentown to Midway flights
Pittsburgh to St. Louis flights
State College to O'Hare Intl flights
Harrisburg to Midway flights
Harrisburg to St. Louis flights
John F Kennedy Intl to Moline flights
Elmira to O'Hare Intl flights
Dulles Intl to Moline flights
LaGuardia to Moline flights
Elmira to Midway flights
Dulles Intl to Peoria flights
Newark to Moline flights
Reagan-National to Peoria flights
Philadelphia to Moline flights
Newark to Rockford flights
Scranton to St. Louis flights
Philadelphia to Peoria flights
Reagan-National to Moline flights
State College to St. Louis flights
Pittsburgh to Rockford flights
Newark to Evansville flights
LaGuardia to Peoria flights
John F Kennedy Intl to Evansville flights
Newark to Bloomington flights
Elmira to St. Louis flights
John F Kennedy Intl to Bloomington flights
LaGuardia to Evansville flights

Top 3 airlines flying from Harrisburg to Chicago

Discover the top 3 airlines that operate flights from Harrisburg to Chicago. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$207Average$309FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$334FlexibilityNo cancel feeOn-time69%
DeltaCheapest$221Average$345FlexibilityNo 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.