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

The number of flights available between Pennsylvania and Illinois is 235 per day as of September 2026. The most frequent departure time is 10:00AM, with 45% of daily flights leaving at noon.

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 43m 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.

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

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

What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois from Pennsylvania according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 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 2026, there are 1,648 flights per week flying from Pennsylvania to Illinois. The most common day of the week flights depart is Wed, with 20% of flights taking off on this day.

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 2026, there are 6 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.

$92 Cheap Flights from Pennsylvania to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pennsylvania to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:22 pm - 6:31 pmPHL Philadelphia-ORD Chicago O'Hare Intl

26h 09m1 stop Atlanta Hartsfield-Jackson

4:41 pm - 8:04 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

$168Frontier

Tue, Oct 20 - Thu, Oct 22

11:54 am - 1:30 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 36mnonstop

4:41 pm - 8:04 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

$168Frontier

Sun, Oct 4 - Sat, Oct 10

6:00 am - 10:53 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 53m1 stop Newark

9:00 am - 12:08 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 08mnonstop

$208United Airlines

Fri, Sep 25 - Fri, Oct 2

1:15 pm - 6:31 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

6h 16m1 stop Newark

6:00 pm - 9:11 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 11mnonstop

$225United Airlines

Thu, Nov 12 - Sat, Nov 14

3:51 pm - 5:33 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 42mnonstop

9:00 pm - 12:12 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

$237American Airlines

Mon, Oct 26 - Sat, Oct 31

7:26 am - 9:07 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 41mnonstop

9:11 pm - 12:19 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 08mnonstop

$237American Airlines

Wed, Nov 11 - Wed, Nov 11

1:00 pm - 7:01 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

7h 01m1 stop Boston Logan Intl

9:38 am - 5:29 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

6h 51m1 stop Boston Logan Intl

$237JetBlue

Wed, Sep 30 - Sat, Oct 3

1:00 pm - 6:23 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

6h 23m1 stop Atlanta Hartsfield-Jackson

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$244Multiple Airlines

Wed, Sep 30 - Sat, Oct 3

1:00 pm - 6:23 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

6h 23m1 stop Atlanta Hartsfield-Jackson

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$244Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

1:00 pm - 7:01 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

7h 01m1 stop Boston Logan Intl

9:38 am - 5:29 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

6h 51m1 stop Boston Logan Intl

$245JetBlue

Tue, Sep 29 - Sat, Oct 3

Cheap last minute flights

Enter your travel dates to find the best prices.

1:30 pm - 8:29 pmEWR Newark-ORD Chicago O'Hare Intl

7h 59m1 stop Dallas/Fort Worth

3:50 pm - 1:01 amORD Chicago O'Hare Intl-EWR Newark

8h 11m1 stop Orlando

$244Frontier

Tue, Sep 15 - Tue, Sep 22

1:30 pm - 8:29 pmEWR Newark-ORD Chicago O'Hare Intl

7h 59m1 stop Dallas/Fort Worth

3:50 pm - 1:01 amORD Chicago O'Hare Intl-EWR Newark

8h 11m1 stop Orlando

$244Frontier

Tue, Sep 15 - Tue, Sep 29

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$277JetBlue

Thu, Sep 10 - Mon, Sep 28

1:00 pm - 6:23 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

6h 23m1 stop Atlanta Hartsfield-Jackson

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$284Multiple Airlines

Tue, Sep 15 - Sat, Sep 26

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$285JetBlue

Tue, Sep 15 - Sat, Sep 26

10:04 pm - 11:50 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 46mnonstop

6:00 am - 9:14 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 14mnonstop

$286American Airlines

Sat, Sep 12 - Sun, Sep 27

6:00 am - 7:53 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 53mnonstop

1:45 pm - 5:02 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 17mnonstop

$286American Airlines

Wed, Sep 16 - Sat, Sep 26

6:00 am - 7:29 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 29mnonstop

10:05 am - 1:26 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 21mnonstop

$286Delta

Mon, Sep 14 - Wed, Oct 14

1:00 pm - 6:23 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

6h 23m1 stop Atlanta Hartsfield-Jackson

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$293Multiple Airlines

Thu, Sep 10 - Mon, Sep 28

5:30 pm - 7:15 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 45mnonstop

6:00 am - 9:15 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 15mnonstop

$301Delta

Wed, Sep 16 - Tue, Sep 29

Cheap direct flights

Enter your travel dates to find the best prices.

11:54 am - 1:30 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 36mnonstop

4:41 pm - 8:04 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

$168Frontier

Sun, Oct 4 - Sat, Oct 10

11:54 am - 1:30 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 36mnonstop

4:41 pm - 8:04 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

$168Frontier

Thu, Oct 1 - Sat, Oct 10

10:54 am - 12:29 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 35mnonstop

7:59 pm - 11:11 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

$237United Airlines

Mon, Nov 9 - Wed, Nov 11

6:46 pm - 8:22 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 36mnonstop

7:45 pm - 10:57 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

$237United Airlines

Tue, Oct 27 - Sat, Oct 31

3:51 pm - 5:33 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 42mnonstop

9:00 pm - 12:12 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

$237American Airlines

Mon, Oct 26 - Sat, Oct 31

7:26 am - 9:07 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 41mnonstop

9:11 pm - 12:19 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 08mnonstop

$237American Airlines

Wed, Nov 11 - Wed, Nov 11

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

10:59 am - 2:20 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 21mnonstop

$258JetBlue

Tue, Sep 29 - Wed, Sep 30

8:15 pm - 10:10 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 55mnonstop

12:38 pm - 4:00 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 22mnonstop

$258JetBlue

Thu, Oct 22 - Sat, Oct 24

4:15 pm - 6:04 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 49mnonstop

10:05 am - 1:26 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 21mnonstop

$265Delta

Mon, Oct 5 - Tue, Oct 6

5:35 pm - 7:25 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 50mnonstop

11:30 am - 2:38 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 08mnonstop

$265Delta

Tue, Nov 10 - Wed, Nov 11

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Frontier flights from Pennsylvania to Illinois

Our best Frontier deals on Pennsylvania to Illinois flight tickets

Frontier

Oct 20

PHL5:22 pmPhiladelphia

26h 09m

1 stop

ORD6:31 pmChicago O'Hare Intl

Oct 22

ORD4:41 pmChicago O'Hare Intl

2h 23m

PHL8:04 pmPhiladelphia

$168

Frontier

Nov 12

PHL9:09 pmPhiladelphia

2h 34m

ORD10:43 pmChicago O'Hare Intl

Nov 16

ORD4:42 pmChicago O'Hare Intl

2h 16m

PHL7:58 pmPhiladelphia

$169

Frontier

Oct 10

PHL9:09 pmPhiladelphia

2h 30m

ORD10:39 pmChicago O'Hare Intl

Oct 17

ORD8:04 amChicago O'Hare Intl

13h 08m

1 stop

PHL10:12 pmPhiladelphia

$173

American Airlines flights from Pennsylvania to Illinois

Our best American Airlines deals on Pennsylvania to Illinois flight tickets

American Airlines

Oct 1

LGA9:29 pmNew York LaGuardia

2h 46m

ORD11:15 pmChicago O'Hare Intl

Oct 4

ORD6:00 amChicago O'Hare Intl

2h 14m

LGA9:14 amNew York LaGuardia

$268

American Airlines

Oct 7

LGA9:05 amNew York LaGuardia

2h 54m

ORD10:59 amChicago O'Hare Intl

Oct 7

ORD5:50 pmChicago O'Hare Intl

4h 54m

1 stop

LGA11:44 pmNew York LaGuardia

$277

American Airlines

Sep 23

LGA6:00 amNew York LaGuardia

2h 53m

ORD7:53 amChicago O'Hare Intl

Sep 26

ORD6:00 amChicago O'Hare Intl

2h 14m

LGA9:14 amNew York LaGuardia

$286

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Tue 10/20

5:22 pm-6:31 pm

1 stop26h 09m

Chicago O'Hare Intl

Thu 10/22

4:41 pm-8:04 pm

Nonstop2h 23m

$168

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Sun 10/4

11:54 am-1:30 pm

Nonstop2h 36m

Chicago O'Hare Intl

Sat 10/10

4:41 pm-8:04 pm

Nonstop2h 23m

$168

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Fri 9/25

6:00 am-10:53 am

1 stop5h 53m

Chicago O'Hare Intl

Fri 10/2

9:00 am-12:08 pm

Nonstop2h 08m

$208

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Thu 11/12

1:15 pm-6:31 pm

1 stop6h 16m

Chicago O'Hare Intl

Sat 11/14

6:00 pm-9:11 pm

Nonstop2h 11m

$225

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Mon 10/26

3:51 pm-5:33 pm

Nonstop2h 42m

Chicago O'Hare Intl

Sat 10/31

9:00 pm-12:12 am

Nonstop2h 12m

$237

Quickest round-trip

PhiladelphiaChicago

PHL Philadelphia - ORD Chicago O'Hare Intl

PHLORD

Philadelphia

Wed 11/11

7:26 am-9:07 am

Nonstop2h 41m

Chicago O'Hare Intl

Wed 11/11

9:11 pm-12:19 am

Nonstop2h 08m

$237

New YorkChicago

JFK New York John F Kennedy Intl - ORD Chicago O'Hare Intl

JFKORD

New York John F Kennedy Intl

Wed 9/30

1:00 pm-7:01 pm

1 stop7h 01m

Chicago O'Hare Intl

Sat 10/3

9:38 am-5:29 pm

1 stop6h 51m

$237

New YorkChicago

JFK New York John F Kennedy Intl - ORD Chicago O'Hare Intl

JFKORD

New York John F Kennedy Intl

Wed 9/30

1:00 pm-6:23 pm

1 stop6h 23m

Chicago O'Hare Intl

Sat 10/3

7:00 am-10:27 am

Nonstop2h 27m

$244

New YorkChicago

JFK New York John F Kennedy Intl - ORD Chicago O'Hare Intl

JFKORD

New York John F Kennedy Intl

Wed 9/23

1:00 pm-6:23 pm

1 stop6h 23m

Chicago O'Hare Intl

Mon 9/28

7:00 am-10:27 am

Nonstop2h 27m

$244

New YorkChicago

JFK New York John F Kennedy Intl - ORD Chicago O'Hare Intl

JFKORD

New York John F Kennedy Intl

Tue 9/29

1:00 pm-7:01 pm

1 stop7h 01m

Chicago O'Hare Intl

Sat 10/3

9:38 am-5:29 pm

1 stop6h 51m

$245

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 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 November. Flight prices, which tend to average around $282, 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 November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $285.

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 $360. Flights from Pennsylvania to Illinois on a Sunday will generally be more expensive and average around $501. 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 afternoon. Flights from Pennsylvania to Illinois during this time can be as low as $346. Flights at noon are often more expensive with an average ticket price of $418.

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 from Pennsylvania 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 $311 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 $279 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	$92
Fastest flight time	1h 20m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Pennsylvania in the past 72 hours is $92. The best round-trip flight deal from Pennsylvania to Illinois found on momondo in the last 72 hours is $168.

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

Direct flights go from Pennsylvania to Illinois every day.

There are 98 airports in Illinois. From Pennsylvania there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying 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 2026, there are 6 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 15.99% of the total bookings. Other popular models include Boeing 737 MAX 8 with 11.42%, Boeing 737-900 with 8.83%, and Airbus A319 with 8.72%.

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 $78	Free Cancellation	Rating 5.6 2,611 reviews	Search Frontier flights
Delta	PriceFrom $133	Free Cancellation	Rating 7.8 8,554 reviews	Search Delta flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest flights
American Airlines	PriceFrom $137	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
United Airlines	PriceFrom $171	Free Cancellation	Rating 7.4 10,194 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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Complete your trip

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Popular cities in Illinois

Flights to New Yorkfrom $72

Flights to Los Angelesfrom $38

Flights to Orlandofrom $63

Flights to Miamifrom $72

Flights to San Franciscofrom $38

Flights to Chicagofrom $60

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $50

Flights to Fort Lauderdalefrom $54

Flights to Bostonfrom $100

Flights to Atlantafrom $38

Flights to Dallasfrom $50

Cheap flights from Pennsylvania to Illinois from $92

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 11/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Pennsylvania to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

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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

momondo Fare Finder

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

See travel insights to Illinois from

How to get the cheapest flight ticket from Pennsylvania to Illinois

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?

What is the cheapest Pennsylvania to Illinois flight route?

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

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

Can stopping save me money on Pennsylvania to Illinois flights?

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

What airlines fly to Illinois?

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

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

How long is the flight from Pennsylvania to Illinois?

Cheap Pennsylvania to Illinois flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying 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?

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

Pennsylvania flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Illinois

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Illinois

Explore popular destinations other users love

According to popular flight searches on momondo this year