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$56+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PIT
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap 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 December 15, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 12/252:40 pmORD - PIT
Nonstop1h 29mAmerican Airlines
Thu 1/17:24 amPIT - ORD
Nonstop2h 01mAmerican Airlines
Deal found 12/14$235
This Delta deal was found by Cheapflights users on 12/14. 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.
Thu 12/255:31 pmORD - PIT
1 stop4h 19mDelta
Thu 1/16:20 amPIT - ORD
1 stop3h 41mDelta
Deal found 12/14$255
This Priceline deal was found by Cheapflights users on 12/13. 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.
Fri 12/195:15 amORD - PIT
1 stop7h 56mFrontier
Mon 12/223:09 pmPIT - ORD
1 stop5h 57mFrontier
Deal found 12/13$268
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Mon 12/296:25 pmPIA - PIT
1 stop5h 00mAmerican Airlines
Thu 1/13:45 pmPIT - PIA
1 stop7h 56mAmerican Airlines
Deal found 12/12$289
This Priceline deal was found by Cheapflights users on 12/14. 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.
Mon 12/1511:25 amORD - PIT
1 stop8h 23mMultiple Airlines
Mon 12/223:09 pmPIT - ORD
1 stop5h 57mMultiple Airlines
Deal found 12/14$289
This American Airlines deal was found by Cheapflights users on 12/12. 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.
Fri 12/198:02 pmPIA - PIT
1 stop5h 47mAmerican Airlines
Tue 12/238:11 pmPIT - PIA
1 stop4h 45mAmerican Airlines
Deal found 12/12$299
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/145:15 pmPIA - PIT
1 stop5h 23mUnited Airlines
Sun 12/215:45 pmPIT - PIA
1 stop4h 54mUnited Airlines
Deal found 12/13$309
This Orbitz deal was found by Cheapflights users on 12/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:15 amORD - PIT
1 stop7h 56mFrontier
Fri 1/25:07 pmPIT - ORD
1 stop8h 05mFrontier
Deal found 12/13$332
This JetBlue deal was found by Cheapflights users on 12/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:25 amORD - PIT
1 stop8h 23mJetBlue
Thu 12/1811:15 amPIT - ORD
1 stop8h 31mJetBlue
Deal found 12/12$334
This Delta deal was found by Cheapflights users on 12/11. 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 12/246:08 pmMDW - PIT
1 stop3h 28mDelta
Sun 1/46:20 amPIT - MDW
1 stop3h 29mDelta
Deal found 12/11$337
This Southwest deal was found by Cheapflights users on 12/11. 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 12/311:30 pmMDW - PIT
Nonstop1h 20mSouthwest
Sun 1/44:05 pmPIT - MDW
Nonstop1h 30mSouthwest
Deal found 12/11$353
This Southwest deal was found by Cheapflights users on 12/12. 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 12/251:30 pmMDW - PIT
Nonstop1h 20mSouthwest
Fri 12/268:55 pmPIT - MDW
Nonstop1h 30mSouthwest
Deal found 12/12$357

Find flight deals from Illinois to Pittsburgh

Keep the following information in mind while searching for Illinois to Pittsburgh flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$153
(Priceline)

One-way from

$56
(Priceline)

Popular in

December

Cheapest in

August

Average price

$395

Good round-trip deal

$298 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Chicago (CHI)-Pittsburgh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Pittsburgh flights.
Search Deals
From Illinois to Pittsburgh
Search Deals
One-way flight from Illinois to Pittsburgh
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 15, 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

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Fri 1/23

8:43 pm-9:40 am

1 stop11h 57m

Pittsburgh

Mon 1/26

10:45 am-9:03 pm

2 stops11h 18m

$158

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Sun 1/11

7:30 am-9:40 am

1 stop25h 10m

Pittsburgh

Fri 1/16

1:00 pm-2:39 pm

1 stop26h 39m

$162

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 1/15

1:25 pm-3:45 pm

Nonstop1h 20m

Pittsburgh

Mon 1/19

1:25 pm-2:00 pm

Nonstop1h 35m

$171

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Sat 1/31

2:07 pm-4:44 pm

Nonstop1h 37m

Pittsburgh

Wed 2/4

5:46 pm-6:45 pm

Nonstop1h 59m

$171

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 1/8

5:40 pm-8:00 pm

Nonstop1h 20m

Pittsburgh

Mon 1/12

12:20 pm-12:50 pm

Nonstop1h 30m

$171

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 1/20

10:35 am-1:10 pm

Nonstop1h 35m

Pittsburgh

Sat 1/24

2:06 pm-2:55 pm

Nonstop1h 49m

$171

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Tue 1/20

1:25 pm-3:45 pm

Nonstop1h 20m

Pittsburgh

Sat 1/24

6:00 pm-6:35 pm

Nonstop1h 35m

$171

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 1/20

7:10 am-9:47 am

Nonstop1h 37m

Pittsburgh

Thu 1/22

2:06 pm-2:55 pm

Nonstop1h 49m

$171

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Fri 1/16

8:43 pm-9:40 am

1 stop11h 57m

Pittsburgh

Mon 1/19

5:50 pm-11:22 am

1 stop18h 32m

$173

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 2/18

7:05 am-11:42 pm

1 stop15h 37m

Pittsburgh

Sun 2/22

6:00 am-11:27 am

1 stop30h 27m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 60 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, December is the cheapest month in which you can book a flight from Illinois to Pittsburgh (average of $91). Flying from Illinois to Pittsburgh in July is currently the most expensive (average of $194). 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 December 15, 2025.

When flying from Illinois to Pittsburgh, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 41% versus a flight at noon.

What is the cheapest day to fly from Illinois to Pittsburgh?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Pittsburgh. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Pittsburgh flight should consider departing on Saturday at noon when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 15, 2025.

The most flights from USIL to PIT are scheduled on a Saturday (46 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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 $171, Spirit Airlines 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 Southwest, which is currently one of the cheapest options available, starting at $45. American Airlines flights start at $48 while deals on United Airlines start at $49 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: Envoy Air (90%), Republic Airways (82%), Air Canada( 79%).

  • 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 $308. The most popular route, (Chicago O'Hare Intl - Pittsburgh), can usually be booked for $110.

  • 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, December is the cheapest month in which you can book a flight from Illinois to Pittsburgh (average of $91). Flying from Illinois to Pittsburgh in July is currently the most expensive (average of $194). 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
Washington
Monroeville
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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$100Average$340FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$103Average$303FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$111Average$336FlexibilityNo cancel feeOn-time69%

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