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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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PIT
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Illinois to Pittsburgh

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Pittsburgh (PIT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$169
(Mytrip)

One-way from

$56
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$326

Good round-trip deal

$315 or less

Good one-way deal

$163 or less
Provider with most accurate pricing for Chicago (CHI)-Pittsburgh flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Pittsburgh flights.
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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. 4% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This Mytrip deal was found by Cheapflights users on 1/29. 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.
Sun 3/24:00 pmSTL - PIT
1 stop16h 26mMultiple Airlines
Mon 3/39:17 pmPIT - STL
2 stops18h 25mMultiple Airlines
Deal found 1/29$160
This Mytrip deal was found by Cheapflights users on 1/30. 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.
Thu 2/205:15 amORD - PIT
1 stop7h 25mSpirit Airlines
Mon 2/248:25 pmPIT - ORD
3 stops28h 33mSpirit Airlines
Deal found 1/30$169
This Southwest deal was found by Cheapflights users on 1/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:00 amMDW - PIT
1 stop3h 55mSouthwest
Fri 3/75:50 pmPIT - MDW
1 stop6h 25mSouthwest
Deal found 1/30$172
This United Airlines deal was found by Cheapflights users on 1/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/179:10 pmORD - PIT
Nonstop1h 32mUnited Airlines
Thu 3/206:25 amPIT - ORD
1 stop4h 13mUnited Airlines
Deal found 1/29$176
This Delta deal was found by Cheapflights users on 1/28. 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.
Mon 3/36:28 pmMDW - PIT
1 stop3h 12mDelta
Tue 3/46:30 amPIT - MDW
1 stop3h 21mDelta
Deal found 1/28$177
This Delta deal was found by Cheapflights users on 1/28. 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 3/55:45 amORD - PIT
1 stop5h 01mDelta
Wed 3/56:05 pmPIT - ORD
1 stop3h 48mDelta
Deal found 1/28$177
This Frontier deal was found by Cheapflights users on 1/29. 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.
Sun 2/97:25 amORD - PIT
1 stop7h 19mFrontier
Fri 2/218:36 pmPIT - ORD
1 stop13h 39mFrontier
Deal found 1/29$200
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 2/1212:21 pmORD - PIT
Nonstop1h 32mAmerican Airlines
Wed 3/1911:38 amPIT - ORD
Nonstop1h 51mAmerican Airlines
Deal found 1/29$201
This FlightHub deal was found by Cheapflights users on 1/30. 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.
Thu 3/276:47 pmSTL - PIT
1 stop21h 22mSpirit Airlines
Mon 3/317:17 pmPIT - STL
1 stop23h 35mSpirit Airlines
Deal found 1/30$205
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Tue 4/13:25 pmMLI - PIT
1 stop5h 37mAmerican Airlines
Sat 4/54:58 pmPIT - MLI
1 stop5h 52mAmerican Airlines
Deal found 1/30$224
This American Airlines deal was found by Cheapflights users on 1/30. 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.
Sun 2/234:40 pmPIA - PIT
1 stop3h 48mAmerican Airlines
Tue 3/49:47 amPIT - PIA
1 stop7h 06mAmerican Airlines
Deal found 1/30$229
This Booking.com deal was found by Cheapflights users on 1/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/66:55 amORD - PIT
1 stop8h 17mMultiple Airlines
Fri 2/218:36 pmPIT - ORD
1 stop13h 39mMultiple Airlines
Deal found 1/29$233

Find flights from Illinois to Pittsburgh within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Thu 2/20

5:15 am-1:40 pm

1 stop7h 25m

Pittsburgh

Mon 2/24

8:25 pm-11:58 pm

3 stops28h 33m

$169

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Mon 3/3

6:00 am-10:55 am

1 stop3h 55m

Pittsburgh

Fri 3/7

5:50 pm-11:15 pm

1 stop6h 25m

$172

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Mon 3/17

9:10 pm-11:42 pm

Nonstop1h 32m

Pittsburgh

Thu 3/20

6:25 am-9:38 am

1 stop4h 13m

$176

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Mon 3/3

6:28 pm-10:40 pm

1 stop3h 12m

Pittsburgh

Tue 3/4

6:30 am-8:51 am

1 stop3h 21m

$177

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 3/5

5:45 am-11:46 am

1 stop5h 01m

Pittsburgh

Wed 3/5

6:05 pm-8:53 pm

1 stop3h 48m

$177

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Sun 2/9

7:25 am-3:44 pm

1 stop7h 19m

Pittsburgh

Fri 2/21

8:36 pm-9:15 am

1 stop13h 39m

$200

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Wed 2/12

12:21 pm-2:53 pm

Nonstop1h 32m

Pittsburgh

Wed 3/19

11:38 am-12:29 pm

Nonstop1h 51m

$201

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Thu 3/27

6:47 pm-5:09 pm

1 stop21h 22m

Pittsburgh

Mon 3/31

7:17 pm-5:52 pm

1 stop23h 35m

$205

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 4/29

7:17 pm-8:51 am

1 stop12h 34m

Pittsburgh

Fri 5/2

6:14 pm-12:06 am

1 stop6h 52m

$208

MolinePittsburgh

MLI - PIT

MLIPIT

Moline Quad-City

Tue 4/1

3:25 pm-10:02 pm

1 stop5h 37m

Pittsburgh

Sat 4/5

4:58 pm-9:50 pm

1 stop5h 52m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 41 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.

Travel insights for flights from Illinois to Pittsburgh

Get recent, data-driven insights about flights from Illinois to Pittsburgh including ideal travel times, pricing trends, and more.

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 January 30, 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 January 30, 2025.

The most flights from USIL to PIT are scheduled on a Wednesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Pittsburgh ranges from 2.3 - 4.3 inches per month. June is typically the wettest month, when rainfall can reach 4.3 in. October is typically the driest time to visit Pittsburgh when rainfall is around 2.3 in.

Temperature in Pittsburgh by month

Plan your trip to Pittsburgh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Pittsburgh, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 January 30, 2025.
To help decide which airline to fly from Illinois to Pittsburgh, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Allegiant Air
7.3
Good
790 reviews
Southwest
8.1
Very good
4,585 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Spirit Airlines, which is currently one of the cheapest options available, starting at $56. Frontier flights start at $65 while deals on Southwest 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: Republic Airways (85%), SkyWest Airlines (85%), United Airlines( 83%).

  • What are the cheapest flights from Illinois to Pittsburgh?

    The cheapest flight price from Illinois to Pittsburgh is $132. On average you can expect to pay $366. The most popular route, (Chicago O'Hare Intl - Pittsburgh), can usually be booked for $136.

  • 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 Illinois?

Book flights to Illinois if you plan to visit one of these locations
Monroeville
Washington
Steubenville
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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$114Average$439FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$138Average$355FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$223Average$414FlexibilityNo cancel feeOn-time63%
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