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Pennsylvania

$46+ Cheap flights from Illinois to Pennsylvania

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Illinois to Pennsylvania

Cheapest flights from Illinois to Pennsylvania
Explore the most affordable flight options available from Illinois to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:15 pmORD - PHL
Nonstop2h 15mFrontier
Wed 12/316:36 pmPHL - ORD
Nonstop2h 30mFrontier
Deal found 12/14$113
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:40 amORD - JFK
Nonstop2h 24mFrontier
Fri 1/304:29 pmJFK - ORD
Nonstop3h 00mFrontier
Deal found 12/14$117
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:15 pmORD - PHL
Nonstop2h 15mFrontier
Thu 1/16:30 amPHL - ORD
1 stop5h 10mFrontier
Deal found 12/13$121
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:40 amORD - JFK
Nonstop2h 24mFrontier
Fri 1/164:24 pmJFK - ORD
Nonstop3h 00mFrontier
Deal found 12/14$121
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:40 amORD - JFK
Nonstop2h 24mFrontier
Wed 12/3111:00 amJFK - ORD
Nonstop2h 57mFrontier
Deal found 12/14$122
This Frontier deal was found by Cheapflights users on 12/16. 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.
Wed 12/178:36 amORD - JFK
Nonstop2h 24mFrontier
Fri 1/164:24 pmJFK - ORD
Nonstop3h 00mFrontier
Deal found 12/16$124
This Frontier deal was found by Cheapflights users on 12/15. 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.
Wed 12/246:40 amORD - JFK
Nonstop2h 24mFrontier
Wed 1/71:00 pmJFK - ORD
Nonstop2h 57mFrontier
Deal found 12/15$125
This Priceline deal was found by Cheapflights users on 12/15. 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 12/224:38 pmORD - LGA
Nonstop2h 04mSpirit Airlines
Sat 1/107:30 amLGA - ORD
Nonstop2h 42mSpirit Airlines
Deal found 12/15$126
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/174:38 pmORD - LGA
Nonstop2h 04mSpirit Airlines
Fri 1/167:30 amLGA - ORD
Nonstop2h 42mSpirit Airlines
Deal found 12/16$127
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:44 amMDW - EWR
Nonstop2h 01mFrontier
Sun 1/1810:30 pmEWR - MDW
Nonstop2h 32mFrontier
Deal found 12/14$128
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:40 amORD - JFK
Nonstop2h 24mFrontier
Sat 1/101:00 pmJFK - ORD
Nonstop2h 57mFrontier
Deal found 12/14$129
This Super.com deal was found by Cheapflights users on 12/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:34 amORD - EWR
Nonstop2h 16mSpirit Airlines
Sat 1/109:05 pmEWR - ORD
Nonstop2h 37mSpirit Airlines
Deal found 12/15$130

Find flight deals from Illinois to Pennsylvania

Keep the following information in mind while searching for Illinois to Pennsylvania flight deals. Data was last updated December 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$76
(Trip.com)

One-way from

$46
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$253

Good round-trip deal

$192 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Chicago (CHI)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Philadelphia flights.
Search Deals
From Illinois to Pennsylvania
Search Deals
One-way flight from Illinois to Pennsylvania
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 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 Pennsylvania.
Search Deals
Price to beat on a one-way flight from Illinois to Pennsylvania.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Pennsylvania 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 16, 2025.
Use the filters below to find and compare flights from Illinois to Pennsylvania that are best for you.

Fly from

Illinois

Fly to

Pennsylvania

Route

Depart

Return

Price

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Wed 1/14

5:15 am-2:00 pm

1 stop7h 45m

New York LaGuardia

Wed 1/21

8:39 pm-8:18 am

1 stop12h 39m

$124

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Fri 2/27

7:05 am-7:50 pm

1 stop11h 45m

New York LaGuardia

Sun 3/1

8:45 pm-9:39 am

1 stop13h 54m

$124

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Tue 2/17

1:00 pm-4:13 pm

Nonstop2h 13m

New York LaGuardia

Tue 2/17

5:15 pm-7:00 pm

Nonstop2h 45m

$134

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Fri 1/30

6:00 am-9:26 am

Nonstop2h 26m

New York LaGuardia

Sun 2/1

8:40 pm-10:34 pm

Nonstop2h 54m

$139

ChicagoNew York

MDW - LGA

MDWLGA

Chicago Midway

Tue 1/13

5:55 pm-9:00 pm

Nonstop2h 05m

New York LaGuardia

Thu 1/15

6:00 am-7:40 am

Nonstop2h 40m

$139

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Tue 1/27

8:00 am-11:13 am

Nonstop2h 13m

New York LaGuardia

Sun 2/1

8:15 am-10:03 am

Nonstop2h 48m

$139

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Wed 2/18

6:25 pm-9:57 pm

Nonstop2h 32m

New York John F Kennedy Intl

Mon 2/23

7:59 pm-9:57 pm

Nonstop2h 58m

$139

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 1/14

11:20 am-2:31 pm

Nonstop2h 11m

Philadelphia

Sun 1/18

6:30 am-7:59 am

Nonstop2h 29m

$139

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Wed 2/25

6:25 pm-9:57 pm

Nonstop2h 32m

New York John F Kennedy Intl

Sat 2/28

6:20 pm-8:17 pm

Nonstop2h 57m

$139

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 1/29

1:57 pm-5:30 pm

Nonstop2h 33m

New York John F Kennedy Intl

Sat 1/31

7:00 pm-8:53 pm

Nonstop2h 53m

$139

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 Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania 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 Pennsylvania

What is the cheapest month to book a flight from Illinois to Pennsylvania?

Currently, November is the cheapest month in which you can book a flight from Illinois to Pennsylvania (average of $67). Flying from Illinois to Pennsylvania in July is currently the most expensive (average of $139). 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 PA?

Find hourly flight availability from Illinois to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

It’s optimal to fly from Illinois to Pennsylvania in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the morning.

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

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

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

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated December 16, 2025.
Read through reviews of airlines operating flights from Illinois to Pennsylvania, such as Southwest, United Airlines, and American Airlines. 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
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,048 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,187 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Illinois to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Pennsylvania?

    Departing from Illinois to Pennsylvania will take you 2h 13m. The distance from Illinois to Pennsylvania is about 731 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Illinois to Pennsylvania that include hotel bookings?

    Yes. In addition to deals on Illinois to Pennsylvania flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Pennsylvania?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Pennsylvania.

  • Can I find deals for business class flights from Illinois to Pennsylvania?

    Yes. Cheapflights offers flight deals from Illinois to Pennsylvania 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 Pennsylvania?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Pennsylvania (average of $67). Flying from Illinois to Pennsylvania in July is currently the most expensive (average of $139). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Pennsylvania

Discover the top 6 airlines that operate flights from Illinois to Pennsylvania. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$63Average$260FlexibilityNo cancel feeOn-time65%
FrontierCheapest$67Average$166FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$98Average$410FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$103Average$305FlexibilityNo cancel feeOn-time63%
DeltaCheapest$108Average$477FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$111Average$383FlexibilityNo cancel feeOn-time69%

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