How long is the flight from Pennsylvania to Illinois?

The flight from Pennsylvania to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Pittsburgh (a popular airport in Pennsylvania) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 1h 42m on average. If you fly from Harrisburg (another popular airport in Pennsylvania) to Chicago O'Hare Intl Airport, then the average flight time is 2h 02m.

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

The number of flights available between Pennsylvania and Illinois is 272 per day as of September 2025. The most frequent departure time is 10:00AM, with 44% of daily flights leaving at noon.

What airlines fly to Illinois?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from Pennsylvania according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, there are 1,905 flights per week flying from Pennsylvania to Illinois. The most common day of the week flights depart is Thu, with 17% of flights taking off on this day.

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

JetBlue, American Airlines, and Frontier are the most popular carriers operating from Pennsylvania to Illinois

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

Prices for flights from Pennsylvania to Illinois refresh daily.

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

As of September 2025, there are 7 operators available to choose from for flights from Pennsylvania to Illinois.

How old do you have to be to fly from Pennsylvania to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$47 Cheap Flights from Pennsylvania to Illinois in 2025/26

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Find the cheapest flights from Pennsylvania to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:04 pm - 8:42 pmPHL-ORD

2h 38mnonstop

8:26 am - 11:39 amORD-PHL

2h 13mnonstop

$112Frontier

Find Deal

Fri, Nov 7 - Fri, Nov 14

7:10 pm - 8:48 pmPHL-ORD

2h 38mnonstop

2:45 pm - 6:00 pmORD-PHL

2h 15mnonstop

$113Frontier

Find Deal

Sat, Oct 11 - Sat, Oct 18

10:05 am - 11:27 amPHL-ORD

2h 22mnonstop

2:15 pm - 5:35 pmORD-PHL

2h 20mnonstop

$134United Airlines

Find Deal

Sat, Oct 18 - Sat, Oct 18

8:30 pm - 10:07 pmLGA-ORD

2h 37mnonstop

11:00 am - 2:19 pmORD-LGA

2h 19mnonstop

$137United Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

9:00 am - 10:35 amLGA-MDW

2h 35mnonstop

8:25 am - 11:30 amMDW-LGA

2h 05mnonstop

$137Southwest

Find Deal

Wed, Oct 15 - Tue, Oct 21

9:45 pm - 11:10 pmLGA-MDW

2h 25mnonstop

5:50 pm - 8:55 pmMDW-LGA

2h 05mnonstop

$142Southwest

Find Deal

Tue, Oct 21 - Sat, Oct 25

7:30 am - 9:13 amJFK-ORD

2h 43mnonstop

1:43 pm - 5:05 pmORD-JFK

2h 22mnonstop

$144American Airlines

Find Deal

Sun, Oct 26 - Wed, Oct 29

7:30 am - 9:11 amLGA-ORD

2h 41mnonstop

6:00 am - 9:04 amORD-LGA

2h 04mnonstop

$148American Airlines

Find Deal

Sat, Oct 25 - Mon, Oct 27

8:00 am - 9:56 amJFK-ORD

2h 56mnonstop

7:00 am - 10:25 amORD-JFK

2h 25mnonstop

$158Delta

Find Deal

Sat, Oct 25 - Mon, Oct 27

6:55 pm - 8:37 pmLGA-ORD

2h 42mnonstop

8:25 pm - 11:44 pmORD-LGA

2h 19mnonstop

$159Delta

Find Deal

Mon, Oct 20 - Mon, Oct 27

Frontier flights from Pennsylvania to Illinois

Our best Frontier deals on Pennsylvania to Illinois flight tickets

Frontier

Nov 7

PHL7:04 pmPhiladelphia

2h 38m

ORD8:42 pmChicago O'Hare Intl

Nov 14

ORD8:26 amChicago O'Hare Intl

2h 13m

PHL11:39 amPhiladelphia

$112

Find similar

Frontier

Oct 11

PHL7:10 pmPhiladelphia

2h 38m

ORD8:48 pmChicago O'Hare Intl

Oct 18

ORD2:45 pmChicago O'Hare Intl

2h 15m

PHL6:00 pmPhiladelphia

$113

Find similar

Frontier

Oct 11

PHL7:10 pmPhiladelphia

2h 38m

ORD8:48 pmChicago O'Hare Intl

Oct 14

ORD11:00 amChicago O'Hare Intl

6h 44m

1 stop

PHL6:44 pmPhiladelphia

$114

Find similar

American Airlines flights from Pennsylvania to Illinois

Our best American Airlines deals on Pennsylvania to Illinois flight tickets

American Airlines

Oct 26

JFK7:30 amNew York John F Kennedy Intl

2h 43m

ORD9:13 amChicago O'Hare Intl

Oct 29

ORD1:43 pmChicago O'Hare Intl

2h 22m

JFK5:05 pmNew York John F Kennedy Intl

$144

Find similar

American Airlines

Oct 25

LGA7:30 amNew York LaGuardia

2h 41m

ORD9:11 amChicago O'Hare Intl

Oct 27

ORD6:00 amChicago O'Hare Intl

2h 04m

LGA9:04 amNew York LaGuardia

$148

Find similar

American Airlines

Oct 25

LGA6:58 pmNew York LaGuardia

2h 41m

ORD8:39 pmChicago O'Hare Intl

Oct 27

ORD6:00 amChicago O'Hare Intl

2h 04m

LGA9:04 amNew York LaGuardia

$149

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Fri 11/7

7:04 pm-8:42 pm

Nonstop2h 38m

Chicago O'Hare Intl

Fri 11/14

8:26 am-11:39 am

Nonstop2h 13m

$112

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Sat 10/11

7:10 pm-8:48 pm

Nonstop2h 38m

Chicago O'Hare Intl

Sat 10/18

2:45 pm-6:00 pm

Nonstop2h 15m

$113

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Sat 10/18

10:05 am-11:27 am

Nonstop2h 22m

Chicago O'Hare Intl

Sat 10/18

2:15 pm-5:35 pm

Nonstop2h 20m

$134

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Tue 10/14

8:30 pm-10:07 pm

Nonstop2h 37m

Chicago O'Hare Intl

Tue 10/21

11:00 am-2:19 pm

Nonstop2h 19m

$137

New YorkChicago

LGA - MDW

LGAMDW

New York LaGuardia

Wed 10/15

9:00 am-10:35 am

Nonstop2h 35m

Chicago Midway

Tue 10/21

8:25 am-11:30 am

Nonstop2h 05m

$137

New YorkChicago

LGA - MDW

LGAMDW

New York LaGuardia

Tue 10/21

9:45 pm-11:10 pm

Nonstop2h 25m

Chicago Midway

Sat 10/25

5:50 pm-8:55 pm

Nonstop2h 05m

$142

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sun 10/26

7:30 am-9:13 am

Nonstop2h 43m

Chicago O'Hare Intl

Wed 10/29

1:43 pm-5:05 pm

Nonstop2h 22m

$144

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Sat 10/25

7:30 am-9:11 am

Nonstop2h 41m

Chicago O'Hare Intl

Mon 10/27

6:00 am-9:04 am

Nonstop2h 04m

$148

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

Sat 10/25

8:00 am-9:56 am

Nonstop2h 56m

Chicago O'Hare Intl

Mon 10/27

7:00 am-10:25 am

Nonstop2h 25m

$158

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Mon 10/20

6:55 pm-8:37 pm

Nonstop2h 42m

Chicago O'Hare Intl

Mon 10/27

8:25 pm-11:44 pm

Nonstop2h 19m

$159

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Pennsylvania to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Pennsylvania is in September. Flight prices, which tend to average around $177, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $190.

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

The cheapest day to depart from Pennsylvania to Illinois is on a Friday when prices can be found for as low as $324. Flights from Pennsylvania to Illinois on a Sunday will generally be more expensive and average around $475. 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 Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Pennsylvania to Illinois during this time can be as low as $249. Flights in the morning are often more expensive with an average ticket price of $400.

What is the cheapest Pennsylvania to Illinois flight route?

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

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

You are more likely to see cheaper flights to Illinois from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $284 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Pennsylvania for as low as $221 on momondo.

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

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

Can stopping save me money on Pennsylvania to Illinois flights?

No. A direct flight is the cheapest option for a flight between Pennsylvania to Illinois.

Cheap Pennsylvania to Illinois flight deals and tips

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

Best Price Found	$132
Fastest flight time	2h 05m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from Pennsylvania in the past 72 hours is $132. The best round-trip flight deal from Pennsylvania to Illinois found on momondo in the last 72 hours is $171.

The fastest flight from Pennsylvania to Illinois takes 2h 05m

Direct flights go from Pennsylvania to Illinois every day.

There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)

Search flight deals

When did momondo last update prices for flights from Pennsylvania to Illinois?
Prices for flights from Pennsylvania to Illinois refresh daily.
How many operators does momondo search for flights from Pennsylvania to Illinois?
As of September 2025, there are 7 operators available to choose from for flights from Pennsylvania to Illinois.
How old do you have to be to fly from Pennsylvania to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Pennsylvania to Illinois?
Based on momondo bookings for flights between Pennsylvania and Illinois, the leading plane model is Boeing 737-800, making up 22.36% of the total bookings. Other popular models include Airbus A320-100/200 with 11.22%, Boeing 737 MAX 8 with 11.02%, and Airbus A319 with 10.03%.

Best airlines flying from Pennsylvania to Illinois

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $61	Free Cancellation	Rating 5.8 3,171 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $83	Free Cancellation	Rating 6.3 8,030 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $93	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
United Airlines	PriceFrom $130	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Pennsylvania to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Yes. momondo enables you to select and highlight flights to Illinois from Pennsylvania with this policy.

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

Once all potential Pennsylvania to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Illinois trip

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Find better results for your trip to Illinois

Popular cities in Illinois

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Cheap flights from Pennsylvania to Illinois from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Illinois departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Pennsylvania to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Pennsylvania to Illinois

Our best Frontier deals on Pennsylvania to Illinois flight tickets

American Airlines flights from Pennsylvania to Illinois

Our best American Airlines deals on Pennsylvania to Illinois flight tickets

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Use the filters below to find and compare flights from Pennsylvania to Illinois that are best for you.

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How to get the cheapest flight ticket from Pennsylvania to Illinois

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

What is the cheapest month to fly to Illinois?

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

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Pennsylvania to Illinois during this time can be as low as $249. Flights in the morning are often more expensive with an average ticket price of $400.

What is the cheapest Pennsylvania to Illinois flight route?

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

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

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

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

Can stopping save me money on Pennsylvania to Illinois flights?

No. A direct flight is the cheapest option for a flight between Pennsylvania to Illinois.

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

JetBlue, American Airlines, and Frontier are the most popular carriers operating from Pennsylvania to Illinois

What airlines fly to Illinois?

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

The number of flights available between Pennsylvania and Illinois is 272 per day as of September 2025. The most frequent departure time is 10:00AM, with 44% of daily flights leaving at noon.

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

As of September 2025, there are 1,905 flights per week flying from Pennsylvania to Illinois. The most common day of the week flights depart is Thu, with 17% of flights taking off on this day.

How long is the flight from Pennsylvania to Illinois?

Cheap Pennsylvania to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

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

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

How old do you have to be to fly from Pennsylvania to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Pennsylvania to Illinois?

Best airlines flying from Pennsylvania to Illinois

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

Why use momondo?

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

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

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

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

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo