Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Pittsburgh to Illinois from $64

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 1/1. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Pittsburgh to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:00 am - 9:40 amPIT-MDW
4h 40m1 stop
Southwest Logo
1:30 pm - 3:50 pmMDW-PIT
1h 20mnonstop
$127Southwest
Find Deal
Wed, Dec 3 - Wed, Dec 3
Southwest Logo
5:30 am - 12:30 pmPIT-MDW
8h 00m2 stops
Southwest Logo
6:05 pm - 8:30 pmMDW-PIT
1h 25mnonstop
$132Southwest
Find Deal
Wed, Dec 3 - Wed, Dec 3
Spirit Airlines Logo
12:14 pm - 12:27 amPIT-ORD
13h 13m1 stop
Spirit Airlines Logo
10:52 am - 9:11 pmORD-PIT
9h 19m1 stop
$138Spirit Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 19
American Airlines Logo
8:15 am - 9:07 amPIT-ORD
1h 52mnonstop
American Airlines Logo
12:02 am - 2:45 amORD-PIT
1h 43mnonstop
$149American Airlines
Find Deal
Thu, Dec 25 - Sun, Jan 4
American Airlines Logo
8:06 am - 9:10 amPIT-ORD
2h 04mnonstop
American Airlines Logo
8:37 am - 11:13 amORD-PIT
1h 36mnonstop
$150American Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 14
Spirit Airlines Logo
12:14 pm - 12:27 amPIT-ORD
13h 13m1 stop
Spirit Airlines Logo
10:52 am - 9:11 pmORD-PIT
9h 19m1 stop
$154Spirit Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 19
Frontier Logo
5:30 pm - 12:15 amPIT-ORD
7h 45m1 stop
Frontier Logo
6:00 am - 4:35 pmORD-PIT
9h 35m1 stop
$181Frontier
Find Deal
Fri, Nov 14 - Mon, Nov 17
Frontier Logo
6:45 pm - 8:32 amPIT-MDW
14h 47m1 stop
Frontier Logo
5:30 pm - 10:09 amMDW-PIT
15h 39m1 stop
$188Frontier
Find Deal
Sun, Nov 16 - Thu, Nov 20
United Airlines Logo
6:10 am - 10:13 amPIT-STL
5h 03m1 stop
United Airlines Logo
1:15 pm - 9:07 pmSTL-PIT
6h 52m1 stop
$278United Airlines
Find Deal
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
6:00 am - 10:50 amPIT-STL
5h 50m1 stop
United Airlines Logo
6:35 pm - 11:59 pmSTL-PIT
4h 24m1 stop
$289United Airlines
Find Deal
Tue, Dec 16 - Mon, Dec 22

Spirit Airlines flights from Pittsburgh to Illinois

Our best Spirit Airlines deals on Pittsburgh to Illinois flight tickets
Spirit Airlines
Nov 17
PIT12:14 pmPittsburgh
13h 13m
1 stop
ORD12:27 amChicago O'Hare Intl
Nov 19
ORD10:52 amChicago O'Hare Intl
9h 19m
1 stop
PIT9:11 pmPittsburgh
$138
Find similar
Spirit Airlines
Nov 17
PIT12:14 pmPittsburgh
13h 13m
1 stop
ORD12:27 amChicago O'Hare Intl
Nov 19
ORD10:52 amChicago O'Hare Intl
9h 19m
1 stop
PIT9:11 pmPittsburgh
$154
Find similar
Spirit Airlines
Nov 12
PIT10:06 pmPittsburgh
16h 20m
1 stop
ORD1:26 pmChicago O'Hare Intl
Nov 14
ORD2:31 pmChicago O'Hare Intl
14h 50m
1 stop
PIT6:21 amPittsburgh
$164
Find similar

American Airlines flights from Pittsburgh to Illinois

Our best American Airlines deals on Pittsburgh to Illinois flight tickets
American Airlines
Dec 25
PIT8:15 amPittsburgh
1h 52m
ORD9:07 amChicago O'Hare Intl
Jan 5
ORD1:57 pmChicago O'Hare Intl
1h 38m
PIT4:35 pmPittsburgh
$149
Find similar
American Airlines
Jan 8
PIT8:06 amPittsburgh
2h 04m
ORD9:10 amChicago O'Hare Intl
Jan 14
ORD8:37 amChicago O'Hare Intl
1h 36m
PIT11:13 amPittsburgh
$150
Find similar
American Airlines
Nov 27
PIT8:15 amPittsburgh
1h 50m
ORD9:05 amChicago O'Hare Intl
Dec 6
ORD5:10 pmChicago O'Hare Intl
1h 41m
PIT7:51 pmPittsburgh
$158
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 November 3, 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

Wed 12/3

6:00 am-9:40 am

1 stop4h 40m

Chicago Midway

Wed 12/3

1:30 pm-3:50 pm

Nonstop1h 20m

$127

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Wed 12/3

5:30 am-12:30 pm

2 stops8h 00m

Chicago Midway

Wed 12/3

6:05 pm-8:30 pm

Nonstop1h 25m

$132

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Mon 11/17

12:14 pm-12:27 am

1 stop13h 13m

Chicago O'Hare Intl

Wed 11/19

10:52 am-9:11 pm

1 stop9h 19m

$138

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 12/25

8:15 am-9:07 am

Nonstop1h 52m

Chicago O'Hare Intl

Sun 1/4

12:02 am-2:45 am

Nonstop1h 43m

$149

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Thu 1/8

8:06 am-9:10 am

Nonstop2h 04m

Chicago O'Hare Intl

Wed 1/14

8:37 am-11:13 am

Nonstop1h 36m

$150

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Mon 11/17

12:14 pm-12:27 am

1 stop13h 13m

Chicago O'Hare Intl

Wed 11/19

10:52 am-9:11 pm

1 stop9h 19m

$154

PittsburghChicago

PIT - ORD

PITORD

Pittsburgh

Fri 11/14

5:30 pm-12:15 am

1 stop7h 45m

Chicago O'Hare Intl

Mon 11/17

6:00 am-4:35 pm

1 stop9h 35m

$181

PittsburghChicago

PIT - MDW

PITMDW

Pittsburgh

Sun 11/16

6:45 pm-8:32 am

1 stop14h 47m

Chicago Midway

Thu 11/20

5:30 pm-10:09 am

1 stop15h 39m

$188

PittsburghSt. Louis

PIT - STL

PITSTL

Pittsburgh

Tue 1/27

6:10 am-10:13 am

1 stop5h 03m

Lambert-St Louis

Sat 1/31

1:15 pm-9:07 pm

1 stop6h 52m

$278

PittsburghSt. Louis

PIT - STL

PITSTL

Pittsburgh

Tue 12/16

6:00 am-10:50 am

1 stop5h 50m

Lambert-St Louis

Mon 12/22

6:35 pm-11:59 pm

1 stop4h 24m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $199, 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 September is also cheap. Prices for this month can be found on momondo for an average of $227.

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 $429. Flights from Pittsburgh to Illinois on a Monday will generally be more expensive and average around $547. 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 $398. Flights at noon are often more expensive with an average ticket price of $660.

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 $309 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 $161 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

$183

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Pittsburgh in the past 72 hours is $183. The best round-trip flight deal from Pittsburgh to Illinois found on momondo in the last 72 hours is $286.
The fastest flight from Pittsburgh to Illinois takes 1h 30m
Direct flights go from Pittsburgh to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
Search flight deals

  • 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 $92Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
United AirlinesPriceFrom $126Free CancellationRating
7.4
8,997 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/3
Wed 12/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $54
Flights to Orlandofrom $47
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $54
Flights to Washington, D.C.from $54
Flights to Bostonfrom $40
Flights to Atlantafrom $40
Flights to Dallasfrom $49
Flights to Seattlefrom $68