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$61+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PIT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$104
(Southwest)

One-way from

$61
(Southwest)

Popular in

June

Cheapest in

August

Average price

$325

Good round-trip deal

$97 or less

Good one-way deal

$115 or less
From Illinois to Pittsburgh
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One-way flight from Illinois to Pittsburgh
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Pittsburgh.
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Price to beat on a one-way flight from Illinois to Pittsburgh.
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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 July 31, 2025.

This Southwest deal was found by Cheapflights users on 7/31. 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 9/119:30 amMDW - PIT
Nonstop1h 25mSouthwest
Wed 9/171:10 pmPIT - MDW
1 stop4h 55mSouthwest
Deal found 7/31$104
This Southwest deal was found by Cheapflights users on 7/31. 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.
Wed 8/273:10 pmORD - PIT
1 stop5h 10mSouthwest
Wed 9/33:30 pmPIT - ORD
1 stop7h 00mSouthwest
Deal found 7/31$111
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/236:58 pmORD - PIT
Nonstop1h 44mAmerican Airlines
Sun 8/246:02 amPIT - ORD
Nonstop1h 55mAmerican Airlines
Deal found 7/30$130
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 9/310:35 amORD - PIT
Nonstop1h 30mUnited Airlines
Wed 9/37:10 pmPIT - ORD
Nonstop1h 50mUnited Airlines
Deal found 7/31$151
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/266:06 amSTL - PIT
1 stop10h 59mAmerican Airlines
Tue 9/28:20 amPIT - STL
1 stop8h 29mAmerican Airlines
Deal found 7/29$171
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:15 pmMDW - PIT
1 stop4h 05mDelta
Tue 9/165:57 pmPIT - MDW
1 stop4h 39mDelta
Deal found 7/30$177
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amORD - PIT
1 stop4h 59mDelta
Wed 9/35:40 pmPIT - ORD
1 stop3h 43mDelta
Deal found 7/31$177
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Mon 9/155:17 pmORD - PIT
1 stop15h 13mSpirit Airlines
Wed 9/175:25 pmPIT - ORD
2 stops27h 25mSpirit Airlines
Deal found 7/30$182
This Frontier deal was found by Cheapflights users on 7/29. 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.
Sat 8/29:12 pmMDW - PIT
1 stop10h 49mFrontier
Mon 8/43:49 pmPIT - MDW
1 stop9h 02mFrontier
Deal found 7/29$188
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sat 9/66:30 amORD - PIT
1 stop9h 39mMultiple Airlines
Sun 9/74:29 pmPIT - ORD
2 stops19h 14mMultiple Airlines
Deal found 7/29$192
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/99:08 amORD - PIT
1 stop23h 03mFrontier
Mon 8/118:43 pmPIT - ORD
1 stop14h 31mFrontier
Deal found 7/30$195
This Southwest deal was found by Cheapflights users on 7/31. 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 8/218:25 amSTL - PIT
Nonstop1h 35mSouthwest
Mon 8/254:00 pmPIT - STL
Nonstop1h 45mSouthwest
Deal found 7/31$217

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 July 31, 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 9/11

9:30 am-11:55 am

Nonstop1h 25m

Pittsburgh

Wed 9/17

1:10 pm-5:05 pm

1 stop4h 55m

$104

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 8/27

3:10 pm-9:20 pm

1 stop5h 10m

Pittsburgh

Wed 9/3

3:30 pm-9:30 pm

1 stop7h 00m

$111

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Sat 8/23

6:58 pm-9:42 pm

Nonstop1h 44m

Pittsburgh

Sun 8/24

6:02 am-6:57 am

Nonstop1h 55m

$130

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 9/3

10:35 am-1:05 pm

Nonstop1h 30m

Pittsburgh

Wed 9/3

7:10 pm-8:00 pm

Nonstop1h 50m

$151

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 8/26

6:06 am-6:05 pm

1 stop10h 59m

Pittsburgh

Tue 9/2

8:20 am-3:49 pm

1 stop8h 29m

$171

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Sat 9/13

6:15 pm-11:20 pm

1 stop4h 05m

Pittsburgh

Tue 9/16

5:57 pm-9:36 pm

1 stop4h 39m

$177

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 9/3

6:00 am-11:59 am

1 stop4h 59m

Pittsburgh

Wed 9/3

5:40 pm-8:23 pm

1 stop3h 43m

$177

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Mon 9/15

5:17 pm-9:30 am

1 stop15h 13m

Pittsburgh

Wed 9/17

5:25 pm-7:50 pm

2 stops27h 25m

$182

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Sat 9/6

6:30 am-5:09 pm

1 stop9h 39m

Pittsburgh

Sun 9/7

4:29 pm-10:43 am

2 stops19h 14m

$192

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Fri 10/31

8:39 am-7:56 pm

1 stop10h 17m

Pittsburgh

Sun 11/2

8:55 pm-7:44 am

1 stop11h 49m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 45 results
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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 $332). 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 July 31, 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 July 31, 2025.

The most flights from USIL to PIT are scheduled on a Wednesday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing Pittsburgh

Get insights into the airlines that provide service to Pittsburgh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pittsburgh. Reviews last updated July 31, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Illinois to Pittsburgh by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,902 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Allegiant Air
7.2
Good
702 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $61. Spirit Airlines flights start at $73 while deals on United Airlines start at $76 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, Chicago Midway - Pittsburgh and Lambert-St Louis - 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: GoJet (92%), Envoy Air (83%), Lufthansa( 81%).

  • 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 $241. The most popular route, (Chicago O'Hare Intl - Pittsburgh), can usually be booked for $91.

  • 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 $332). 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

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Alternative routes for Illinois to Pittsburgh

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$113Average$352FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$116Average$414FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$119Average$355FlexibilityNo cancel feeOn-time69%

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