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Cheap flights from Pittsburgh to Illinois from $46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to Illinois departing on 9/30. 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 Pittsburgh to Illinois

Cheap round-trip flights

Southwest Logo
4:35 pm - 5:00 pmPIT-MDW
1h 25mnonstop
Southwest Logo
10:15 am - 12:45 pmMDW-PIT
1h 30mnonstop
$91Southwest
Find Deal
Sat, Nov 1 - Tue, Nov 4
American Airlines Logo
10:26 am - 11:10 amPIT-ORD
1h 44mnonstop
American Airlines Logo
1:59 pm - 4:34 pmORD-PIT
1h 35mnonstop
$91American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
American Airlines Logo
8:23 am - 9:17 amPIT-ORD
1h 54mnonstop
American Airlines Logo
1:54 pm - 4:33 pmORD-PIT
1h 39mnonstop
$94American Airlines
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Sat, Aug 23 - Mon, Aug 25
Southwest Logo
3:45 pm - 4:10 pmPIT-MDW
1h 25mnonstop
Southwest Logo
5:25 pm - 7:45 pmMDW-PIT
1h 20mnonstop
$94Southwest
Find Deal
Sat, Aug 23 - Mon, Aug 25
Spirit Airlines Logo
8:00 am - 3:55 pmPIT-ORD
8h 55m1 stop
Spirit Airlines Logo
10:15 am - 7:50 pmORD-PIT
8h 35m1 stop
$147Spirit Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
2:10 pm - 2:54 pmPIT-ORD
1h 44mnonstop
United Airlines Logo
7:24 am - 10:01 amORD-PIT
1h 37mnonstop
$151United Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
7:05 am - 7:48 amPIT-ORD
1h 43mnonstop
United Airlines Logo
3:35 pm - 6:16 pmORD-PIT
1h 41mnonstop
$154United Airlines
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Thu, Sep 4 - Sat, Sep 6
Spirit Airlines Logo
7:00 am - 9:58 pmPIT-ORD
15h 58m1 stop
Spirit Airlines Logo
11:13 am - 7:56 pmORD-PIT
7h 43m1 stop
$182Spirit Airlines
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Mon, Sep 15 - Thu, Sep 18
Frontier Logo
3:49 pm - 11:51 pmPIT-MDW
9h 02m1 stop
Frontier Logo
8:35 am - 7:48 pmMDW-PIT
10h 13m1 stop
$198Frontier
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Fri, Aug 15 - Mon, Aug 18
Frontier Logo
5:28 pm - 11:53 pmPIT-ORD
7h 25m1 stop
Frontier Logo
6:20 am - 1:26 pmORD-PIT
6h 06m1 stop
$198Frontier
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Fri, Oct 10 - Sun, Oct 12

American Airlines flights from Pittsburgh to Illinois

Our best American Airlines deals on Pittsburgh to Illinois flight tickets
American Airlines
Oct 4
PIT10:26 amPittsburgh
1h 44m
ORD11:10 amChicago O'Hare Intl
Oct 11
ORD1:59 pmChicago O'Hare Intl
1h 35m
PIT4:34 pmPittsburgh
$91
Find similar
American Airlines
Aug 23
PIT8:23 amPittsburgh
1h 54m
ORD9:17 amChicago O'Hare Intl
Aug 25
ORD1:54 pmChicago O'Hare Intl
1h 39m
PIT4:33 pmPittsburgh
$94
Find similar
American Airlines
Aug 23
PIT7:13 amPittsburgh
1h 45m
ORD7:58 amChicago O'Hare Intl
Aug 24
ORD6:39 pmChicago O'Hare Intl
1h 44m
PIT9:23 pmPittsburgh
$130
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Spirit Airlines flights from Pittsburgh to Illinois

Our best Spirit Airlines deals on Pittsburgh to Illinois flight tickets
Spirit Airlines
Jan 22
PIT8:00 amPittsburgh
8h 55m
1 stop
ORD3:55 pmChicago O'Hare Intl
Jan 26
ORD10:15 amChicago O'Hare Intl
8h 35m
1 stop
PIT7:50 pmPittsburgh
$147
Find similar
Spirit Airlines
Sep 15
PIT7:00 amPittsburgh
15h 58m
1 stop
ORD9:58 pmChicago O'Hare Intl
Sep 18
ORD11:13 amChicago O'Hare Intl
7h 43m
1 stop
PIT7:56 pmPittsburgh
$182
Find similar
Spirit Airlines
Aug 30
PIT8:45 amPittsburgh
14h 37m
1 stop
ORD10:22 pmChicago O'Hare Intl
Sep 2
ORD5:16 pmChicago O'Hare Intl
14h 59m
1 stop
PIT9:15 amPittsburgh
$186
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pittsburgh 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 July 31, 2025.
Use the filters below to find and compare flights from Pittsburgh to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Sat 11/1

4:35 pm-5:00 pm

Nonstop1h 25m

Chicago Midway

Tue 11/4

10:15 am-12:45 pm

Nonstop1h 30m

$91

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Sat 10/4

10:26 am-11:10 am

Nonstop1h 44m

Chicago O'Hare Intl

Sat 10/11

1:59 pm-4:34 pm

Nonstop1h 35m

$91

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Sat 8/23

8:23 am-9:17 am

Nonstop1h 54m

Chicago O'Hare Intl

Mon 8/25

1:54 pm-4:33 pm

Nonstop1h 39m

$94

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Sat 8/23

3:45 pm-4:10 pm

Nonstop1h 25m

Chicago Midway

Mon 8/25

5:25 pm-7:45 pm

Nonstop1h 20m

$94

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 1/22

8:00 am-3:55 pm

1 stop8h 55m

Chicago O'Hare Intl

Mon 1/26

10:15 am-7:50 pm

1 stop8h 35m

$147

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Tue 8/26

2:10 pm-2:54 pm

Nonstop1h 44m

Chicago O'Hare Intl

Tue 9/2

7:24 am-10:01 am

Nonstop1h 37m

$151

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 9/4

7:05 am-7:48 am

Nonstop1h 43m

Chicago O'Hare Intl

Sat 9/6

3:35 pm-6:16 pm

Nonstop1h 41m

$154

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Mon 9/15

7:00 am-9:58 pm

1 stop15h 58m

Chicago O'Hare Intl

Thu 9/18

11:13 am-7:56 pm

1 stop7h 43m

$182

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Fri 8/15

3:49 pm-11:51 pm

1 stop9h 02m

Chicago Midway

Mon 8/18

8:35 am-7:48 pm

1 stop10h 13m

$198

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Fri 10/10

5:28 pm-11:53 pm

1 stop7h 25m

Chicago O'Hare Intl

Sun 10/12

6:20 am-1:26 pm

1 stop6h 06m

$198

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 Pittsburgh 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 Pittsburgh is in August. Flight prices, which tend to average around $221, 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 August, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $246.

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

The cheapest day to depart from Pittsburgh to Illinois is on a Thursday when prices can be found for as low as $424. Flights from Pittsburgh to Illinois on a Sunday will generally be more expensive and average around $557. 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 Pittsburgh to Illinois during this time can be as low as $403. Flights at noon are often more expensive with an average ticket price of $655.

What is the cheapest Pittsburgh to Illinois flight route?

Fly from Pittsburgh to Chicago Midway for the best Pittsburgh - 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 Pittsburgh when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $304 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Pittsburgh for as low as $189 on momondo.

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

There are 4 cabin classes available to choose from on Pittsburgh 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 Pittsburgh to Illinois flights?

No. A direct flight is the cheapest option for a flight between Pittsburgh to Illinois.

Cheap Pittsburgh to Illinois flight deals and tips

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

Best Price Found

$46

Fastest flight time

1h 25m

Direct flights

Every day

Airports in Illinois

4 airports
The best one-way flight to Illinois from Pittsburgh in the past 72 hours is $46. The best round-trip flight deal from Pittsburgh to Illinois found on momondo in the last 72 hours is $91.
The fastest flight from Pittsburgh to Illinois takes 1h 25m
Direct flights go from Pittsburgh to Illinois every day.
There are 4 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Chicago Greater Rockford (RFD), Lambert-St Louis (STL)
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  • When did momondo last update prices for flights from Pittsburgh Airport to Illinois?

    Prices for flights from Pittsburgh Airport to Illinois refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pittsburgh Airport to Illinois.

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

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Pittsburgh to Illinois?

Best airlines flying from Pittsburgh to Illinois

Compare and see reviews for airlines that fly from Pittsburgh to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $97Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $126Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $135Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Pittsburgh to Illinois. momondo saves you time and could save you money on your trip.

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

All flight searches from Pittsburgh to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Pittsburgh 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 Pittsburgh to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Pittsburgh 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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