What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Harrisburg according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Harrisburg to Illinois?

Frontier, United Airlines, and Allegiant Air are the most popular carriers operating from Harrisburg to Illinois

How many flights depart from Harrisburg to Illinois on average per week?

39 flights are operational weekly from Harrisburg to Illinois as of October 2025. The most popular departure day for this route is Thu, with 44% of flights per week taking off on this day.

How many flights depart from Harrisburg to Illinois on average per day?

As of October 2025, 5 flights take off from Harrisburg and land in Illinois each day. The most common flight departure time for this route is 6:00AM, with 63% of daily flights taking off at noon.

When did momondo last update prices for flights from Harrisburg Airport to Illinois?

Prices for flights from Harrisburg Airport to Illinois refresh daily.

How many operators does momondo search for flights from Harrisburg Airport to Illinois?

As of October 2025, there are 3 operators available to choose from for flights from Harrisburg Airport to Illinois.

How old do you have to be to fly from Harrisburg Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Harrisburg Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$124 Cheap Flights from Harrisburg to Illinois in 2025/26

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Find the cheapest flights from Harrisburg to Illinois

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:07 pm - 6:37 pmMDT-ORD

2h 30mnonstop

6:05 am - 12:13 pmORD-MDT

5h 08m1 stop

$239American Airlines

Find Deal

Sat, Jan 10 - Sun, Jan 11

6:15 am - 9:38 amMDT-ORD

4h 23m1 stop

1:30 pm - 4:33 pmORD-MDT

2h 03mnonstop

$244United Airlines

Find Deal

Sat, Dec 20 - Sat, Dec 27

5:00 am - 6:20 amMDT-ORD

2h 20mnonstop

8:54 pm - 11:59 pmORD-MDT

2h 05mnonstop

$245American Airlines

Find Deal

Tue, Dec 23 - Fri, Dec 26

6:15 am - 9:46 amMDT-ORD

4h 31m1 stop

8:50 am - 1:58 pmORD-MDT

4h 08m1 stop

$247United Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 23

8:00 pm - 9:19 pmMDT-ORD

2h 19mnonstop

6:40 am - 1:17 pmORD-MDT

5h 37m1 stop

$248American Airlines

Find Deal

Fri, Dec 26 - Tue, Dec 30

7:12 pm - 12:02 amMDT-ORD

5h 50m1 stop

8:55 am - 4:15 pmORD-MDT

6h 20m1 stop

$249Delta

Find Deal

Fri, Nov 21 - Mon, Nov 24

6:00 am - 9:53 amMDT-MDW

4h 53m1 stop

6:48 pm - 11:14 pmMDW-MDT

3h 26m1 stop

$249Delta

Find Deal

Sat, Nov 15 - Sat, Nov 22

11:08 am - 5:07 pmMDT-MDW

6h 59m1 stop

5:47 pm - 10:13 amMDW-MDT

15h 26m1 stop

$321Frontier

Find Deal

Sat, Nov 22 - Mon, Nov 24

10:56 am - 9:58 pmMDT-MDW

12h 02m1 stop

10:50 pm - 10:01 amMDW-MDT

34h 11m2 stops

$497Frontier

Find Deal

Tue, Dec 23 - Sun, Dec 28

6:16 pm - 9:08 amMDT-MLI

15h 52m1 stop

6:49 pm - 12:31 pmMLI-MDT

16h 42m1 stop

$819Allegiant Air

Find Deal

Thu, Mar 26 - Mon, Mar 30

United Airlines flights from Harrisburg to Illinois

Our best United Airlines deals on Harrisburg to Illinois flight tickets

United Airlines

Dec 20

MDT6:15 amHarrisburg

4h 23m

1 stop

ORD9:38 amChicago O'Hare Intl

Dec 27

ORD1:30 pmChicago O'Hare Intl

2h 03m

MDT4:33 pmHarrisburg

$244

Find similar

United Airlines

Nov 21

MDT6:15 amHarrisburg

4h 31m

1 stop

ORD9:46 amChicago O'Hare Intl

Nov 23

ORD8:50 amChicago O'Hare Intl

4h 08m

1 stop

MDT1:58 pmHarrisburg

$247

Find similar

United Airlines

Dec 3

MDT6:15 amHarrisburg

4h 21m

1 stop

ORD9:36 amChicago O'Hare Intl

Dec 10

ORD8:45 amChicago O'Hare Intl

4h 07m

1 stop

MDT1:52 pmHarrisburg

$250

Find similar

Delta flights from Harrisburg to Illinois

Our best Delta deals on Harrisburg to Illinois flight tickets

Delta

Nov 21

MDT7:12 pmHarrisburg

5h 50m

1 stop

ORD12:02 amChicago O'Hare Intl

Nov 24

ORD8:55 amChicago O'Hare Intl

6h 20m

1 stop

MDT4:15 pmHarrisburg

$249

Find similar

Delta

Nov 13

MDT7:12 pmHarrisburg

5h 49m

1 stop

ORD12:01 amChicago O'Hare Intl

Nov 17

ORD4:26 pmChicago O'Hare Intl

5h 45m

1 stop

MDT11:11 pmHarrisburg

$269

Find similar

Delta

Mar 25

MDT6:00 amHarrisburg

5h 50m

1 stop

STL10:50 amLambert-St Louis

Mar 28

STL5:00 pmLambert-St Louis

5h 40m

1 stop

MDT11:40 pmHarrisburg

$274

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sat 1/10

5:07 pm-6:37 pm

Nonstop2h 30m

Chicago O'Hare Intl

Sun 1/11

6:05 am-12:13 pm

1 stop5h 08m

$239

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sat 12/20

6:15 am-9:38 am

1 stop4h 23m

Chicago O'Hare Intl

Sat 12/27

1:30 pm-4:33 pm

Nonstop2h 03m

$244

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Tue 12/23

5:00 am-6:20 am

Nonstop2h 20m

Chicago O'Hare Intl

Fri 12/26

8:54 pm-11:59 pm

Nonstop2h 05m

$245

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 11/21

6:15 am-9:46 am

1 stop4h 31m

Chicago O'Hare Intl

Sun 11/23

8:50 am-1:58 pm

1 stop4h 08m

$247

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 12/26

8:00 pm-9:19 pm

Nonstop2h 19m

Chicago O'Hare Intl

Tue 12/30

6:40 am-1:17 pm

1 stop5h 37m

$248

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 11/21

7:12 pm-12:02 am

1 stop5h 50m

Chicago O'Hare Intl

Mon 11/24

8:55 am-4:15 pm

1 stop6h 20m

$249

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Sat 11/15

6:00 am-9:53 am

1 stop4h 53m

Chicago Midway

Sat 11/22

6:48 pm-11:14 pm

1 stop3h 26m

$249

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Sat 11/22

11:08 am-5:07 pm

1 stop6h 59m

Chicago Midway

Mon 11/24

5:47 pm-10:13 am

1 stop15h 26m

$321

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Tue 12/23

10:56 am-9:58 pm

1 stop12h 02m

Chicago Midway

Sun 12/28

10:50 pm-10:01 am

2 stops34h 11m

$497

HarrisburgMoline

MDT - MLI

MDTMLI

Harrisburg

Thu 3/26

6:16 pm-9:08 am

1 stop15h 52m

Moline Quad-City

Mon 3/30

6:49 pm-12:31 pm

1 stop16h 42m

$819

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harrisburg to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Harrisburg is in January. Flight prices, which tend to average around $279, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $282.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Harrisburg to Illinois is on a Friday when prices can be found for as low as $403. Flights from Harrisburg to Illinois on a Monday will generally be more expensive and average around $611. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Harrisburg to Illinois during this time can be as low as $308. Flights at noon are often more expensive with an average ticket price of $573.

What is the cheapest Harrisburg to Illinois flight route?

Fly from Harrisburg to Chicago O'Hare Intl for the best Harrisburg - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Harrisburg when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $318 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Harrisburg for as low as $266 on momondo.

What cabin class options are available on Harrisburg to Illinois flights?

There are 4 cabin classes available to choose from on Harrisburg to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Harrisburg to Illinois flights?

You could potentially save up to 25% on your flight if you consider stops on a Harrisburg to Illinois flight.

Cheap Harrisburg to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to Illinois

Best Price Found	$237
Fastest flight time	2h 13m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from Harrisburg in the past 72 hours is $237. The best round-trip flight deal from Harrisburg to Illinois found on momondo in the last 72 hours is $324.

The fastest flight from Harrisburg to Illinois takes 2h 13m

Direct flights go from Harrisburg to Illinois every day.

There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)

Search flight deals

When did momondo last update prices for flights from Harrisburg Airport to Illinois?
Prices for flights from Harrisburg Airport to Illinois refresh daily.
How many operators does momondo search for flights from Harrisburg Airport to Illinois?
As of October 2025, there are 3 operators available to choose from for flights from Harrisburg Airport to Illinois.
How old do you have to be to fly from Harrisburg Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Harrisburg Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Harrisburg to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Harrisburg to Illinois is Canadair (Bombardier) Regional Jet CRJ-550, representing 21.63% of all bookings. The subsequent popular models are Embraer 170 at 21.48%, Boeing 737-700 at 18.37%, and Boeing 737-800 at 12.52%.

Best airlines flying from Harrisburg to Illinois

Compare and see reviews for airlines that fly from Harrisburg to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $119	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
American Airlines	PriceFrom $207	Free Cancellation	Rating 7.2 11,035 reviews	Search American Airlines flights
United Airlines	PriceFrom $209	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harrisburg to Illinois for you.

Can I find flights from Harrisburg to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Harrisburg on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Harrisburg to Illinois?

Once you have performed a search for Harrisburg to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Harrisburg to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Harrisburg are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

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Popular cities in Illinois

Flights to New Yorkfrom $49

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Flights to Washington, D.C.from $40

Flights to Bostonfrom $60

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Flights to Seattlefrom $53

Cheap flights from Harrisburg to Illinois from $124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to Illinois departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Harrisburg to Illinois

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How to get the cheapest flight ticket from Harrisburg to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Harrisburg to Illinois during this time can be as low as $308. Flights at noon are often more expensive with an average ticket price of $573.

What is the cheapest Harrisburg to Illinois flight route?

Fly from Harrisburg to Chicago O'Hare Intl for the best Harrisburg - Illinois flight prices

How far in advance should I book a flight to Illinois?

What cabin class options are available on Harrisburg to Illinois flights?

There are 4 cabin classes available to choose from on Harrisburg to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Harrisburg to Illinois flights?

You could potentially save up to 25% on your flight if you consider stops on a Harrisburg to Illinois flight.

What is the cheapest airline that flies from Harrisburg to Illinois?

Frontier, United Airlines, and Allegiant Air are the most popular carriers operating from Harrisburg to Illinois

What airlines fly to Illinois?

How many flights depart from Harrisburg to Illinois on average per day?

As of October 2025, 5 flights take off from Harrisburg and land in Illinois each day. The most common flight departure time for this route is 6:00AM, with 63% of daily flights taking off at noon.

How many flights depart from Harrisburg to Illinois on average per week?

39 flights are operational weekly from Harrisburg to Illinois as of October 2025. The most popular departure day for this route is Thu, with 44% of flights per week taking off on this day.

Cheap Harrisburg to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Harrisburg Airport to Illinois?

How many operators does momondo search for flights from Harrisburg Airport to Illinois?

How old do you have to be to fly from Harrisburg Airport to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Harrisburg to Illinois?

Best airlines flying from Harrisburg to Illinois

Compare and see reviews for airlines that fly from Harrisburg to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to Illinois?

Can I find flights from Harrisburg to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Harrisburg to Illinois?

I’m not ready to book a flight from Harrisburg to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo