HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pittsburgh

$66+ Cheap flights from Illinois to Pittsburgh (PIT)

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PIT
Oct 22 — Oct 291
Wed 10/22
Wed 10/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Pittsburgh 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.

Cheap flight deals from Illinois to Pittsburgh

Keep the following information in mind while searching for Illinois to Pittsburgh flight deals. Data was last updated September 22, 2025.

Round-trip from

$137
(Southwest)

One-way from

$66
(Expedia)

Popular in

June

Cheapest in

August

Average price

$225

Good round-trip deal

$117 or less

Good one-way deal

$73 or less
From Illinois to Pittsburgh
Search Deals
One-way flight from Illinois to Pittsburgh
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($8 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
Price to beat on a round-trip flight from Illinois to Pittsburgh.
Search Deals
Price to beat on a one-way flight from Illinois to Pittsburgh.
Search Deals

Find flight deals from Illinois to Pittsburgh

Cheapest flights from Illinois to Pittsburgh
Explore the most affordable flight options available from Illinois to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 22, 2025.

This American Airlines deal was found by Cheapflights users on 9/22. 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.
Thu 10/166:47 pmORD - PIT
Nonstop1h 52mAmerican Airlines
Mon 10/207:17 amPIT - ORD
Nonstop1h 42mAmerican Airlines
Deal found 9/22$136
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:40 pmMDW - PIT
Nonstop1h 20mSouthwest
Mon 10/208:10 pmPIT - MDW
Nonstop1h 30mSouthwest
Deal found 9/22$137
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/1610:35 amORD - PIT
Nonstop1h 30mUnited Airlines
Mon 10/207:00 pmPIT - ORD
Nonstop1h 50mUnited Airlines
Deal found 9/21$137
This Priceline deal was found by Cheapflights users on 9/22. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:25 amMDW - PIT
1 stop4h 16mFrontier
Mon 10/273:55 pmPIT - MDW
1 stop8h 08mFrontier
Deal found 9/22$144
This Frontier deal was found by Cheapflights users on 9/21. 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.
Sun 9/286:10 amORD - PIT
1 stop7h 26mFrontier
Fri 10/39:34 amPIT - ORD
1 stop11h 10mFrontier
Deal found 9/21$144
This Booking.com deal was found by Cheapflights users on 9/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:32 amMDW - PIT
1 stop7h 34mFrontier
Sun 11/26:45 pmPIT - MDW
1 stop14h 47mFrontier
Deal found 9/20$156
This Booking.com deal was found by Cheapflights users on 9/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:26 amORD - PIT
1 stop4h 27mFrontier
Sun 11/26:45 pmPIT - ORD
1 stop18h 31mFrontier
Deal found 9/20$156
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:50 amMDW - PIT
1 stop5h 00mSouthwest
Thu 10/166:00 pmPIT - MDW
1 stop5h 20mSouthwest
Deal found 9/21$157
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:10 pmORD - PIT
1 stop5h 20mSouthwest
Wed 10/225:50 amPIT - ORD
1 stop7h 00mSouthwest
Deal found 9/21$157
This Trip.com deal was found by Cheapflights users on 9/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:00 amORD - PIT
1 stop6h 32mFrontier
Fri 10/108:06 pmPIT - ORD
1 stop28h 47mFrontier
Deal found 9/21$158
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:50 pmORD - PIT
1 stop4h 05mSouthwest
Mon 10/206:00 amPIT - ORD
1 stop7h 45mSouthwest
Deal found 9/22$162
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:50 amORD - PIT
1 stop8h 55mFrontier
Sun 10/2612:50 pmPIT - ORD
1 stop19h 20mFrontier
Deal found 9/21$166

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Pittsburgh 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 22, 2025.
Use the filters below to find and compare flights from Illinois to Pittsburgh that are best for you.

Fly from

Illinois

Fly to

Pittsburgh

Route

Depart

Return

Price

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 10/16

6:40 pm-9:00 pm

Nonstop1h 20m

Pittsburgh

Mon 10/20

8:10 pm-8:40 pm

Nonstop1h 30m

$137

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 10/21

2:15 pm-4:52 pm

Nonstop1h 37m

Pittsburgh

Wed 10/22

5:56 pm-6:40 pm

Nonstop1h 44m

$137

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Wed 10/29

10:05 am-12:25 pm

Nonstop1h 20m

Pittsburgh

Thu 10/30

8:10 pm-8:40 pm

Nonstop1h 30m

$137

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 10/21

3:35 pm-6:16 pm

Nonstop1h 41m

Pittsburgh

Tue 10/28

7:01 am-7:45 am

Nonstop1h 44m

$137

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Tue 10/21

4:55 pm-7:15 pm

Nonstop1h 20m

Pittsburgh

Wed 10/22

4:00 pm-4:25 pm

Nonstop1h 25m

$137

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Mon 10/20

3:35 pm-6:16 pm

Nonstop1h 41m

Pittsburgh

Wed 10/22

11:04 am-11:47 am

Nonstop1h 43m

$137

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Tue 10/28

7:55 am-12:25 pm

1 stop3h 30m

Pittsburgh

Thu 10/30

4:30 pm-4:55 pm

Nonstop1h 25m

$147

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 10/16

5:50 am-11:50 am

1 stop5h 00m

Pittsburgh

Thu 10/16

4:30 pm-4:55 pm

Nonstop1h 25m

$147

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 12/4

2:10 pm-9:55 pm

2 stops6h 45m

Pittsburgh

Mon 12/8

6:45 pm-7:15 pm

Nonstop1h 30m

$152

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 10/29

3:10 pm-9:30 pm

1 stop5h 20m

Pittsburgh

Thu 10/30

12:50 pm-4:25 pm

1 stop4h 35m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/21

Showing 1-10 of 58 results
1
2
3
...
6

Best time to book a flight from Illinois to Pittsburgh

Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from Illinois 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 Illinois to Pittsburgh

What is the cheapest month to book a flight from Illinois to Pittsburgh?

Currently, August is the cheapest month in which you can book a flight from Illinois to Pittsburgh (average of $262). Flying from Illinois to Pittsburgh in November is currently the most expensive (average of $333). 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 IL to PIT?

Find hourly flight availability from Illinois to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 22, 2025.

When flying from Illinois to Pittsburgh, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Pittsburgh

Explore weekly flight availability from Illinois to Pittsburgh. 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 22, 2025.

The most flights from USIL to PIT are scheduled on a Monday (55 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Pittsburgh. 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 into for flights to Pittsburgh from Illinois?

    For a flight from Illinois to Pittsburgh, you will be flying into Pittsburgh. Pittsburgh (PIT) is just 13.5 mi from the center of the city.

  • How long is the flight from Illinois to Pittsburgh?

    For as low as $137, Southwest can have you in Pittsburgh from Illinois in 1h 20m. Illinois and Pittsburgh are separated by a distance of 400 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Pittsburgh one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $66. Southwest flights start at $69 while deals on United Airlines start at $69 one-way.

  • What are the most popular routes from Illinois to Pittsburgh?

    The most popular flight routes from Illinois to Pittsburgh are Chicago O'Hare Intl - Pittsburgh, Lambert-St Louis - Pittsburgh and Chicago Midway - Pittsburgh.

  • What are the most reliable airlines from Illinois to Pittsburgh?

    Before booking your flight to Pittsburgh from Illinois, check out the most reliable airlines to get you to your destination on time: Envoy Air (89%), Air Canada (86%), SkyWest Airlines( 85%).

  • What are the cheapest flights from Illinois to Pittsburgh?

    The cheapest flight price from Illinois to Pittsburgh is $48. On average you can expect to pay $309. The most popular route, (Chicago O'Hare Intl - Pittsburgh), can usually be booked for $137.

  • Can I find deals for flights from Illinois to Pittsburgh that include hotel bookings?

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

  • How can I find direct flights from Illinois to Pittsburgh?

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

  • Can I find deals for business class flights from Illinois to Pittsburgh?

    Yes. Cheapflights offers flight deals from Illinois to Pittsburgh 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 Illinois to Pittsburgh?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Pittsburgh (average of $262). Flying from Illinois to Pittsburgh in November is currently the most expensive (average of $333). 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 Pittsburgh?

Book flights to Pittsburgh if you plan to visit one of these locations
Mars
Steubenville
Monroeville
Washington
Wexford
Belle Vernon

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 Illinois to Pittsburgh

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to LaGuardia flights
Los Angeles to Newark flights
San Francisco to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
Atlanta to John F Kennedy Intl flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Newark flights
Los Angeles to LaGuardia flights
Atlanta to LaGuardia flights
Dallas/Fort Worth to Newark flights
San Francisco to Newark flights
Miami to John F Kennedy Intl flights
Ontario to John F Kennedy Intl flights
Hobby to LaGuardia flights
Hobby to Newark flights
Fort Lauderdale to Newark flights
Fort Lauderdale to LaGuardia flights
Denver to John F Kennedy Intl flights
Raleigh to LaGuardia flights
San Francisco to LaGuardia flights
Miami to LaGuardia flights
Miami to Newark flights
Orlando to John F Kennedy Intl flights
Atlanta to Newark flights
Charlotte to John F Kennedy Intl flights
Dallas/Fort Worth to Dulles Intl flights
Denver to LaGuardia flights
Raleigh to John F Kennedy Intl flights
Hobby to John F Kennedy Intl flights
Minneapolis to John F Kennedy Intl flights
Fort Lauderdale to John F Kennedy Intl flights
Burbank to Newark flights
George Bush Intcntl to Newark flights
Sky Harbor Intl to John F Kennedy Intl flights
Seattle to John F Kennedy Intl flights
Tampa to John F Kennedy Intl flights
Orlando to LaGuardia flights
Boston to Reagan-National flights
Los Angeles to Reagan-National flights
Ontario to Newark flights
Santa Ana to Newark flights
Los Angeles to Dulles Intl flights
George Bush Intcntl to John F Kennedy Intl flights
San Diego to John F Kennedy Intl flights
Austin to John F Kennedy Intl flights
Minneapolis to LaGuardia flights
Denver to Newark flights
Boston to Dulles Intl flights

Top 3 airlines flying from Illinois to Pittsburgh

Discover the top 3 airlines that operate flights from Illinois to Pittsburgh. 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 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$100Average$358FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$103Average$331FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$115Average$354FlexibilityNo cancel feeOn-time69%

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.