What is the cheapest airline that flies from Illinois to Pittsburgh?

Southwest, United Airlines, and Delta are the most popular carriers operating from Illinois to Pittsburgh

How long does it take to fly to Pittsburgh?

Flight times from Illinois to Pittsburgh vary, but if you’re flying out of Chicago and flying into Pittsburgh (one of the most popular routes), then the duration is 1h 26m on average. Another popular route from Illinois to Pittsburgh is flying from Moline to Pittsburgh, which will take roughly 5h 14m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Illinois to Pittsburgh on average per week?

As of June 2026, 387 flights take off from Illinois and land in Pittsburgh each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.

What airlines fly to Pittsburgh?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Pittsburgh from Illinois according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Pittsburgh. Keep in mind that there are 3 different airlines that fly to Pittsburgh on a routine basis, so you have a few additional options to choose from.

How many flights depart from Illinois to Pittsburgh on average per day?

As of June 2026, there are 55 flights per day flying from Illinois to Pittsburgh. The most common time of day flights depart is 6:00PM, with 49% of flights taking off in the evening.

When did momondo last update prices for flights from Illinois to Pittsburgh Airport?

Prices for flights from Illinois to Pittsburgh Airport refresh daily.

How many operators does momondo search for flights from Illinois to Pittsburgh Airport?

As of June 2026, there are 4 operators available to choose from for flights from Illinois to Pittsburgh Airport.

How old do you have to be to fly from Illinois to Pittsburgh Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Pittsburgh Airport.

What documentation or ID do you need to fly to Pittsburgh Airport?

The required travel and health documents for your Pittsburgh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pittsburgh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$69 Cheap Flights from Illinois to Pittsburgh in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Pittsburgh

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 1:15 pm

STL

PIT

4h 15m

1 stop

10:45 am - 3:38 pm

PIT

STL

5h 53m

1 stop

$196United Airlines

Tue, Aug 25 - Tue, Sep 1

7:27 am - 12:32 pm

STL

PIT

4h 05m

1 stop

8:47 pm - 12:27 am

PIT

STL

4h 40m

1 stop

$201American Airlines

Sat, Sep 12 - Sat, Sep 19

5:10 pm - 9:45 pm

MDW

PIT

3h 35m

1 stop

6:00 am - 11:00 am

PIT

MDW

6h 00m

2 stops

$204Southwest

Wed, Jul 1 - Wed, Jul 8

1:20 pm - 9:50 pm

MDW

PIT

7h 30m

2 stops

7:25 pm - 10:20 pm

PIT

MDW

3h 55m

1 stop

$206Southwest

Thu, Aug 6 - Mon, Aug 10

9:20 pm - 11:59 pm

ORD

PIT

1h 39mnonstop

7:40 pm - 8:37 pm

PIT

ORD

1h 57mnonstop

$207United Airlines

Tue, Jun 30 - Sat, Jul 4

9:24 am - 3:33 pm

MDW

PIT

5h 09m

1 stop

5:50 am - 11:51 am

PIT

MDW

7h 01m

1 stop

$211Delta

Thu, Aug 6 - Mon, Aug 10

5:20 pm - 12:04 am

ORD

PIT

5h 44m

1 stop

7:05 am - 2:09 pm

PIT

ORD

8h 04m

1 stop

$211Delta

Thu, Aug 6 - Mon, Aug 10

10:56 am - 7:23 pm

ORD

PIT

7h 27m

1 stop

12:53 pm - 7:31 pm

PIT

ORD

7h 38m

1 stop

$219JetBlue

Fri, Jul 3 - Tue, Jul 7

10:56 am - 7:23 pm

ORD

PIT

7h 27m

1 stop

12:58 pm - 7:25 pm

PIT

ORD

7h 27m

1 stop

$220JetBlue

Tue, Aug 18 - Fri, Aug 21

4:09 pm - 12:04 pm

STL

PIT

18h 55m

1 stop

7:13 pm - 11:59 pm

PIT

STL

5h 46m

1 stop

$247Frontier

Tue, Jul 28 - Mon, Aug 3

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United Airlines flights from Illinois to Pittsburgh

Our best United Airlines deals on Illinois to Pittsburgh flight tickets

United Airlines

Aug 25

STL8:00 amLambert-St Louis

4h 15m

1 stop

PIT1:15 pmPittsburgh

Sep 1

PIT10:45 amPittsburgh

5h 53m

1 stop

STL3:38 pmLambert-St Louis

$196

United Airlines

Jun 30

ORD9:20 pmChicago O'Hare Intl

1h 39m

PIT11:59 pmPittsburgh

Jul 4

PIT7:40 pmPittsburgh

1h 57m

ORD8:37 pmChicago O'Hare Intl

$207

United Airlines

Aug 8

ORD2:25 pmChicago O'Hare Intl

1h 45m

PIT5:10 pmPittsburgh

Aug 10

PIT7:00 amPittsburgh

1h 48m

ORD7:48 amChicago O'Hare Intl

$227

Southwest flights from Illinois to Pittsburgh

Our best Southwest deals on Illinois to Pittsburgh flight tickets

Southwest

Jul 1

MDW5:10 pmChicago Midway

3h 35m

1 stop

PIT9:45 pmPittsburgh

Jul 8

PIT6:00 amPittsburgh

6h 00m

2 stops

MDW11:00 amChicago Midway

$204

Southwest

Aug 13

MDW8:00 amChicago Midway

8h 40m

2 stops

PIT5:40 pmPittsburgh

Aug 17

PIT5:55 pmPittsburgh

5h 45m

1 stop

MDW10:40 pmChicago Midway

$206

Southwest

Jul 15

STL10:25 amLambert-St Louis

1h 35m

PIT1:00 pmPittsburgh

Jul 15

PIT7:45 pmPittsburgh

1h 45m

STL8:30 pmLambert-St Louis

$219

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 8/25

8:00 am-1:15 pm

1 stop4h 15m

Pittsburgh

Tue 9/1

10:45 am-3:38 pm

1 stop5h 53m

$196

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Sat 9/12

7:27 am-12:32 pm

1 stop4h 05m

Pittsburgh

Sat 9/19

8:47 pm-12:27 am

1 stop4h 40m

$201

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Wed 7/1

5:10 pm-9:45 pm

1 stop3h 35m

Pittsburgh

Wed 7/8

6:00 am-11:00 am

2 stops6h 00m

$204

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 8/6

1:20 pm-9:50 pm

2 stops7h 30m

Pittsburgh

Mon 8/10

7:25 pm-10:20 pm

1 stop3h 55m

$206

Quickest round-trip

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 6/30

9:20 pm-11:59 pm

Nonstop1h 39m

Pittsburgh

Sat 7/4

7:40 pm-8:37 pm

Nonstop1h 57m

$207

ChicagoPittsburgh

MDW - PIT

MDWPIT

Chicago Midway

Thu 8/6

9:24 am-3:33 pm

1 stop5h 09m

Pittsburgh

Mon 8/10

5:50 am-11:51 am

1 stop7h 01m

$211

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Thu 8/6

5:20 pm-12:04 am

1 stop5h 44m

Pittsburgh

Mon 8/10

7:05 am-2:09 pm

1 stop8h 04m

$211

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Fri 7/3

10:56 am-7:23 pm

1 stop7h 27m

Pittsburgh

Tue 7/7

12:53 pm-7:31 pm

1 stop7h 38m

$219

ChicagoPittsburgh

ORD - PIT

ORDPIT

Chicago O'Hare Intl

Tue 8/18

10:56 am-7:23 pm

1 stop7h 27m

Pittsburgh

Fri 8/21

12:58 pm-7:25 pm

1 stop7h 27m

$220

St. LouisPittsburgh

STL - PIT

STLPIT

Lambert-St Louis

Tue 7/28

4:09 pm-12:04 pm

1 stop18h 55m

Pittsburgh

Mon 8/3

7:13 pm-11:59 pm

1 stop5h 46m

$247

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Pittsburgh

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

Prices

Airlines

Other information

What is the cheapest month to fly to Pittsburgh?

In general, September is the cheapest month to fly from Illinois to Pittsburgh. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $67. The month of December is another great option to travel to Pittsburgh, with average flight prices from Illinois averaging around $73.

What is the cheapest day to depart on your flight to Pittsburgh?

The cheapest day to depart on your flight to Pittsburgh is on a Thursday when prices can be found for as low as $265. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Pittsburgh on a Monday will generally be more expensive and average around $446. 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 Pittsburgh?

Our data shows that the cheapest Illinois to Pittsburgh flights are usually those with departure times in the afternoon. Our users have found flights to Pittsburgh in the afternoon for as low as $330. Flights to Pittsburgh are more costly in the morning, with an average ticket price of $356. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Illinois to Pittsburgh flight route?

Fly from Chicago Midway to Pittsburgh for the best Illinois - Pittsburgh flight prices

How far in advance should I book a flight from Illinois to Pittsburgh?

You are more likely to see cheaper flights to Pittsburgh from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Pittsburgh for around $352 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pittsburgh from Illinois for as low as $118 on momondo.

What cabin class options are available on Illinois to Pittsburgh flights?

There are 4 cabin classes available to choose from on Illinois to Pittsburgh flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Pittsburgh flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Pittsburgh

Best Price Found	$125
Fastest flight time	1h 20m
Direct flights	Every day
Airports in Pittsburgh	1 airport

The best one-way flight to Pittsburgh from Illinois in the past 72 hours is $125. The best round-trip flight deal from Illinois to Pittsburgh found on momondo in the last 72 hours is $240.

The fastest flight from Illinois to Pittsburgh takes 1h 20m

Direct flights go from Illinois to Pittsburgh every day.

There is 1 airport in Pittsburgh. From Illinois there are direct flights to Pittsburgh (PIT).

Search flight deals

Frequently asked questions about flying from Illinois to Pittsburgh

When did momondo last update prices for flights from Illinois to Pittsburgh Airport?
Prices for flights from Illinois to Pittsburgh Airport refresh daily.
How many operators does momondo search for flights from Illinois to Pittsburgh Airport?
As of June 2026, there are 4 operators available to choose from for flights from Illinois to Pittsburgh Airport.
How old do you have to be to fly from Illinois to Pittsburgh Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Pittsburgh Airport.
What documentation or ID do you need to fly to Pittsburgh Airport?
The required travel and health documents for your Pittsburgh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pittsburgh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Pittsburgh?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Pittsburgh is Airbus A320-100/200, representing 17.49% of all bookings. The subsequent popular models are Airbus A319 at 15.90%, Embraer 175 (Enhanced Winglets) at 13.32%, and Embraer 175 at 12.14%.

Best airlines flying from Illinois to Pittsburgh

Compare and see reviews for airlines that fly from Illinois to Pittsburgh with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $97	Free Cancellation	Rating 7.1 11,703 reviews	Search American Airlines flights
Southwest	PriceFrom $116	Free Cancellation	Rating 7.9 4,239 reviews	Search Southwest flights
United Airlines	PriceFrom $133	Free Cancellation	Rating 7.4 9,860 reviews	Search United Airlines flights

Washington

Monroeville

Wheeling

Canonsburg

Butler

Triadelphia

West Mifflin

New Castle

Belle Vernon

Moon

Coraopolis

Steubenville

Mars

Wexford

Chester

Cadiz

Bridgeport

Edgewood

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Pittsburgh?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Pittsburgh. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Pittsburgh with flexible booking policies on momondo?

momondo does allow users to show only those flights to Pittsburgh from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Pittsburgh?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Pittsburgh.

I’m not ready to book a flight from Illinois to Pittsburgh right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Pittsburgh flights. All you need is a valid email address and we will do the rest; it is that quick and easy.