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Cheap flights from Harrisburg to Illinois from $93

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 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Harrisburg to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:31 pm - 10:34 pm
MDT
-
STL
9h 03m1 stop
Frontier Logo
5:42 pm - 6:55 pm
STL
-
MDT
24h 13m1 stop
$166Frontier
Sat, Jan 17 - Sat, Jan 24
Multiple Airlines Logo
2:31 pm - 3:51 pm
MDT
-
ORD
26h 20m2 stops
Multiple Airlines Logo
10:48 am - 7:30 pm
ORD
-
MDT
7h 42m1 stop
$194Multiple Airlines
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
5:30 pm - 6:50 pm
MDT
-
ORD
2h 20mnonstop
United Airlines Logo
6:10 pm - 9:05 pm
ORD
-
MDT
1h 55mnonstop
$209United Airlines
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
5:10 pm - 6:40 pm
MDT
-
ORD
2h 30mnonstop
American Airlines Logo
9:00 pm - 11:50 pm
ORD
-
MDT
1h 50mnonstop
$211American Airlines
Thu, Jan 8 - Sun, Jan 11
Frontier Logo
10:46 am - 10:47 pm
MDT
-
ORD
13h 01m1 stop
Frontier Logo
8:15 am - 9:51 am
ORD
-
MDT
24h 36m1 stop
$218Frontier
Fri, Feb 27 - Sat, Feb 28
United Airlines Logo
5:30 pm - 6:50 pm
MDT
-
ORD
2h 20mnonstop
United Airlines Logo
8:52 am - 1:51 pm
ORD
-
MDT
3h 59m1 stop
$219United Airlines
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
5:40 pm - 6:55 pm
MDT
-
ORD
2h 15mnonstop
United Airlines Logo
6:10 pm - 9:05 pm
ORD
-
MDT
1h 55mnonstop
$220United Airlines
Fri, Mar 20 - Sun, Mar 22
Delta Logo
6:02 pm - 11:59 pm
MDT
-
ORD
6h 57m1 stop
Delta Logo
9:55 am - 5:07 pm
ORD
-
MDT
6h 12m1 stop
$229Delta
Thu, Jan 15 - Thu, Jan 22
Delta Logo
6:00 am - 8:46 am
MDT
-
MDW
3h 46m1 stop
Delta Logo
6:35 pm - 10:47 pm
MDW
-
MDT
3h 12m1 stop
$229Delta
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
5:18 pm - 10:09 pm
MDT
-
STL
5h 51m1 stop
American Airlines Logo
7:00 am - 2:50 pm
STL
-
MDT
6h 50m1 stop
$251American Airlines
Tue, Feb 17 - Sat, Feb 21

American Airlines flights from Harrisburg to Illinois

Our best American Airlines deals on Harrisburg to Illinois flight tickets
American Airlines
Jan 8
MDT5:10 pmHarrisburg
2h 30m
ORD6:40 pmChicago O'Hare Intl
Jan 11
ORD9:00 pmChicago O'Hare Intl
1h 50m
MDT11:50 pmHarrisburg
$211
Find similar
American Airlines
Feb 27
MDT6:00 amHarrisburg
2h 40m
ORD7:40 amChicago O'Hare Intl
Feb 28
ORD7:11 amChicago O'Hare Intl
6h 39m
1 stop
MDT2:50 pmHarrisburg
$239
Find similar
American Airlines
Jan 8
MDT7:00 amHarrisburg
6h 05m
1 stop
ORD12:05 pmChicago O'Hare Intl
Jan 11
ORD9:00 pmChicago O'Hare Intl
1h 50m
MDT11:50 pmHarrisburg
$241
Find similar

United Airlines flights from Harrisburg to Illinois

Our best United Airlines deals on Harrisburg to Illinois flight tickets
United Airlines
Jan 15
MDT5:30 pmHarrisburg
2h 20m
ORD6:50 pmChicago O'Hare Intl
Jan 22
ORD6:10 pmChicago O'Hare Intl
1h 55m
MDT9:05 pmHarrisburg
$209
Find similar
United Airlines
Jan 15
MDT5:30 pmHarrisburg
2h 20m
ORD6:50 pmChicago O'Hare Intl
Jan 18
ORD8:52 amChicago O'Hare Intl
3h 59m
1 stop
MDT1:51 pmHarrisburg
$219
Find similar
United Airlines
Mar 20
MDT5:40 pmHarrisburg
2h 15m
ORD6:55 pmChicago O'Hare Intl
Mar 22
ORD6:10 pmChicago O'Hare Intl
1h 55m
MDT9:05 pmHarrisburg
$220
Find similar

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Harrisburg to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Sat 1/17

2:31 pm-10:34 pm

1 stop9h 03m

Lambert-St Louis

Sat 1/24

5:42 pm-6:55 pm

1 stop24h 13m

$166

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Sat 1/17

2:31 pm-3:51 pm

2 stops26h 20m

Chicago O'Hare Intl

Sat 1/24

10:48 am-7:30 pm

1 stop7h 42m

$194

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 1/15

5:30 pm-6:50 pm

Nonstop2h 20m

Chicago O'Hare Intl

Thu 1/22

6:10 pm-9:05 pm

Nonstop1h 55m

$209

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 1/8

5:10 pm-6:40 pm

Nonstop2h 30m

Chicago O'Hare Intl

Sun 1/11

9:00 pm-11:50 pm

Nonstop1h 50m

$211

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 2/27

10:46 am-10:47 pm

1 stop13h 01m

Chicago O'Hare Intl

Sat 2/28

8:15 am-9:51 am

1 stop24h 36m

$218

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 1/15

5:30 pm-6:50 pm

Nonstop2h 20m

Chicago O'Hare Intl

Sun 1/18

8:52 am-1:51 pm

1 stop3h 59m

$219

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Fri 3/20

5:40 pm-6:55 pm

Nonstop2h 15m

Chicago O'Hare Intl

Sun 3/22

6:10 pm-9:05 pm

Nonstop1h 55m

$220

HarrisburgChicago

MDT - ORD

MDTORD

Harrisburg

Thu 1/15

6:02 pm-11:59 pm

1 stop6h 57m

Chicago O'Hare Intl

Thu 1/22

9:55 am-5:07 pm

1 stop6h 12m

$229

HarrisburgChicago

MDT - MDW

MDTMDW

Harrisburg

Tue 3/31

6:00 am-8:46 am

1 stop3h 46m

Chicago Midway

Sat 4/4

6:35 pm-10:47 pm

1 stop3h 12m

$229

HarrisburgSt. Louis

MDT - STL

MDTSTL

Harrisburg

Tue 2/17

5:18 pm-10:09 pm

1 stop5h 51m

Lambert-St Louis

Sat 2/21

7:00 am-2:50 pm

1 stop6h 50m

$251

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

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?

The cheapest month to fly to Illinois from Harrisburg is in December. Flight prices, which tend to average around $277, 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 December, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $279.

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 $393. Flights from Harrisburg to Illinois on a Monday will generally be more expensive and average around $607. 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 $323. Flights at noon are often more expensive with an average ticket price of $484.

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 $241 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 33% 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

$302

Fastest flight time

2h 02m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Harrisburg in the past 72 hours is $302. The best round-trip flight deal from Harrisburg to Illinois found on momondo in the last 72 hours is $308.
The fastest flight from Harrisburg to Illinois takes 2h 02m
Direct flights go from Harrisburg to Illinois every day.
There are 98 airports in Illinois. From Harrisburg there are direct flights to 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?

  • 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?

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
American AirlinesPriceFrom $207Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,005 reviews
Search Delta 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.

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