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$55+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Illinois to Pennsylvania

Keep the following information in mind while searching for Illinois to Pennsylvania flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$91
(Booking.com)

One-way from

$55
(Cheapflightsfares)

Popular in

February

Cheapest in

August

Average price

$310

Good round-trip deal

$142 or less

Good one-way deal

$63 or less
Provider with most accurate pricing for Chicago (CHI)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Philadelphia flights.
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From Illinois to Pennsylvania
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One-way flight from Illinois to Pennsylvania
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Highest demand for flights based on searches. 35% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Illinois to Pennsylvania.
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Price to beat on a one-way flight from Illinois to Pennsylvania.
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Find 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 March 28, 2025.

This Booking.com deal was found by Cheapflights users on 3/26. 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.
Sun 5/115:51 amORD - LGA
Nonstop2h 09mSpirit Airlines
Sun 5/187:55 pmLGA - ORD
1 stop13h 55mSpirit Airlines
Deal found 3/26$91
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Sat 4/266:36 pmORD - EWR
Nonstop2h 23mSpirit Airlines
Tue 4/298:59 pmEWR - ORD
1 stop13h 25mSpirit Airlines
Deal found 3/26$99
This JetBlue deal was found by Cheapflights users on 3/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/68:45 amORD - JFK
1 stop6h 42mJetBlue
Tue 5/68:00 pmJFK - ORD
Nonstop2h 54mJetBlue
Deal found 3/27$121
This Southwest deal was found by Cheapflights users on 3/26. 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.
Sat 5/246:15 pmMDW - LGA
Nonstop2h 10mSouthwest
Tue 5/276:10 amLGA - MDW
Nonstop2h 20mSouthwest
Deal found 3/26$137
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Thu 4/176:00 amORD - LGA
Nonstop2h 11mUnited Airlines
Sun 4/207:00 amLGA - ORD
Nonstop2h 41mUnited Airlines
Deal found 3/26$143
This American Airlines deal was found by Cheapflights users on 3/26. 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 5/66:17 amORD - LGA
Nonstop2h 06mAmerican Airlines
Tue 5/612:55 pmLGA - ORD
Nonstop2h 35mAmerican Airlines
Deal found 3/26$144
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:10 amORD - JFK
Nonstop2h 19mDelta
Tue 4/297:20 pmJFK - ORD
Nonstop3h 05mDelta
Deal found 3/27$146
This Delta deal was found by Cheapflights users on 3/26. 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.
Thu 5/86:00 amORD - LGA
Nonstop2h 10mDelta
Tue 5/136:05 amLGA - ORD
Nonstop2h 37mDelta
Deal found 3/26$149
This American Airlines deal was found by Cheapflights users on 3/27. 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 5/611:45 amORD - JFK
Nonstop2h 13mAmerican Airlines
Wed 5/143:55 pmJFK - ORD
Nonstop2h 39mAmerican Airlines
Deal found 3/27$150
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/295:14 pmORD - PHL
Nonstop2h 00mAmerican Airlines
Sat 5/39:17 pmPHL - ORD
Nonstop2h 30mAmerican Airlines
Deal found 3/27$168
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:36 amORD - PHL
1 stop10h 04mMultiple Airlines
Sun 5/47:15 amPHL - ORD
Nonstop2h 28mMultiple Airlines
Deal found 3/27$172
This Southwest deal was found by Cheapflights users on 3/27. 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.
Thu 5/17:00 amORD - LGA
1 stop12h 10mSouthwest
Tue 5/67:40 amLGA - ORD
1 stop10h 05mSouthwest
Deal found 3/27$174

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 March 28, 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

Sun 5/11

5:51 am-9:00 am

Nonstop2h 09m

New York LaGuardia

Sun 5/18

7:55 pm-8:50 am

1 stop13h 55m

$91

ChicagoNewark

ORD - EWR

ORDEWR

Chicago O'Hare Intl

Sat 4/26

6:36 pm-9:59 pm

Nonstop2h 23m

Newark

Tue 4/29

8:59 pm-9:24 am

1 stop13h 25m

$99

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Tue 5/6

8:45 am-4:27 pm

1 stop6h 42m

New York John F Kennedy Intl

Tue 5/6

8:00 pm-9:54 pm

Nonstop2h 54m

$121

ChicagoNew York

MDW - LGA

MDWLGA

Chicago Midway

Sat 5/24

6:15 pm-9:25 pm

Nonstop2h 10m

New York LaGuardia

Tue 5/27

6:10 am-7:30 am

Nonstop2h 20m

$137

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Thu 4/17

6:00 am-9:11 am

Nonstop2h 11m

New York LaGuardia

Sun 4/20

7:00 am-8:41 am

Nonstop2h 41m

$143

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Tue 5/6

12:11 pm-3:17 pm

Nonstop2h 06m

New York LaGuardia

Tue 5/6

6:00 pm-7:40 pm

Nonstop2h 40m

$146

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Tue 4/29

7:10 am-10:29 am

Nonstop2h 19m

New York John F Kennedy Intl

Tue 4/29

7:20 pm-9:25 pm

Nonstop3h 05m

$146

ChicagoNew York

ORD - LGA

ORDLGA

Chicago O'Hare Intl

Thu 5/8

6:00 am-9:10 am

Nonstop2h 10m

New York LaGuardia

Tue 5/13

6:05 am-7:42 am

Nonstop2h 37m

$149

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Tue 5/6

11:45 am-2:58 pm

Nonstop2h 13m

New York John F Kennedy Intl

Wed 5/14

3:55 pm-5:34 pm

Nonstop2h 39m

$150

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 4/29

5:14 pm-8:14 pm

Nonstop2h 00m

Philadelphia

Sat 5/3

9:17 pm-10:47 pm

Nonstop2h 30m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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, August is the cheapest month in which you can book a flight from Illinois to Pennsylvania (average of $236). Flying from Illinois to Pennsylvania in March is currently the most expensive (average of $295). 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 March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Pennsylvania as you normally would.

Weekly flight availability from Illinois to Pennsylvania

Explore weekly flight availability from Illinois to Pennsylvania. 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 March 28, 2025.

The most flights from USIL to USPA are scheduled on a Thursday (39 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Pennsylvania by month

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

In terms of precipitation, rainfall in Pennsylvania ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Pennsylvania when rainfall is around 2.7 in.

Temperature in Pennsylvania by month

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

If weather is an important factor for your trip to Pennsylvania, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Illinois to Pennsylvania have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • What are the cheapest airlines to fly from Illinois to Pennsylvania one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from Illinois to Pennsylvania for a low price.

  • 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, August is the cheapest month in which you can book a flight from Illinois to Pennsylvania (average of $236). Flying from Illinois to Pennsylvania in March is currently the most expensive (average of $295). 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

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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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LaGuardia to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Miami flights
John F Kennedy Intl to Miami flights
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$51Average$110FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$63Average$333FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$103Average$306FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$119Average$407FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$136Average$367FlexibilityNo cancel feeOn-time69%
DeltaCheapest$182Average$240FlexibilityNo cancel feeOn-timeN/A
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