$35 Find Cheap Flights from Illinois to Pennsylvania

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Low seasonJanuary
High seasonMay
Cheapest flight$35
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Chicago O'Hare Airport to Newark Liberty Airport

FAQs for booking flights from Illinois to Pennsylvania

  • How does KAYAK find such low prices on flights from Illinois to Pennsylvania?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Pennsylvania.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Pennsylvania?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Pennsylvania?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Pennsylvania with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Pennsylvania?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Pennsylvania?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Pennsylvania is Philadelphia Airport (PHL), with an average flight price of $173.

  • What is the cheapest day to fly to Pennsylvania?

    Based on KAYAK data, the cheapest day to fly to Pennsylvania is Thursday where round-trip tickets can be as cheap as $264. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $406 on average.

  • What is the cheapest time of day to fly to Pennsylvania?

    The cheapest time of day to fly to Pennsylvania is generally at night, when round-trip flights cost $233 on average. Morning departures are around 54% cheaper than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the evening, which is peak travel time and where the average cost of a ticket is $537.

  • What is the cheapest flight to Pennsylvania?

    The cheapest ticket to Pennsylvania from Illinois found in the last 72 hours was to Pittsburgh, at $97 round-trip. The most popular route is Chicago Midway Airport (MDW) to Philadelphia (PHL) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $138.

  • What is the cheapest month to fly from Illinois to Pennsylvania?

    The cheapest month for flights from Illinois to Pennsylvania is September, when tickets cost $228 (return) on average. On the other hand, the most expensive months are February and December, when the average cost of round-trip tickets is $416 and $386 respectively.

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

    To get a below average price on the flight from Illinois to Pennsylvania, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

  • How long is the flight to Pennsylvania?

    An average nonstop flight from Illinois to Pennsylvania takes 3h 31m, covering a distance of 699 miles. The shortest route is Chicago Midway Airport (MDW) to Pittsburgh (PIT) with an average flight time of 1h 20m.

  • What are the most popular destinations in Pennsylvania?

    Based on KAYAK flight searches, the most popular destination is New York (75% of total searches to Pennsylvania). The next most popular destinations are Washington, D.C. (14%) and Philadelphia (8%). Searches for flights to Pittsburgh (1%), to Harrisburg (1%) and to Allentown (0%) are also popular.

Top 5 airlines serving from Illinois to Pennsylvania

Need help choosing which airline to fly with from Illinois to Pennsylvania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
7.1Food
8.0Comfort
7.6Entertainment
8.6Crew
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

The flight attendants in First Class were mediocre at best. They did not take our tray away until we were about to land and only did so when I press the call button. The United person at the United Club was asked to get us our boarding pass since we missed the flight due in Chicago. She argued that we did not have seats on the flight given to us in Moline. Furthermore, she was adamant that we did not have a First Class ticket. After I spent much time with her trying to show we were correct, she reluctantly agreed. She was probably the most incompetent ticketing person I have ever met and I have traveled 3 million miles on United plus many additional miles with other carriers. United has definitely deteriorated in more than on way.

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

Worst airline ever! The guy weighing my bag had his foot on the metal plate and when I called him out on it, I got this stupid little smirk. La is a scam and so is Spirit Airlines. All the flight attendants looked like they hated our flight just as much as we did.

Spirit is awful. Too expensive for what you get. Stop nickel and diming.

Good crew and safe. However, comfort and being nickeled-and-dimed are my issues. $75 each way for luggage is exhortation. The space to the next seat is so close you cannot open a laptop. The magazine rack doesn’t hold your items. Not a fan.

WiFi could have been a little more consistent - otherwise a phenomenal and positive experience. The 1000 mile giveaway was awesome!!!

Your employees need to learn how to talk to people as creations of Yah. We are not their children nor are we lower than them.

Absolutely Terrible. It was delay after delay after delay. I should have been arriving in Philadelphia at 12:05am from Fort Lauderdale instead I didn’t depart from Fort Lauderdale until 12:33am with no rhyme or reason as to why the flight was delayed. The only compensation we received were 12 dollar meal vouchers which by that time we were already boarding the plane and most of the place in the airport were closed so none of the vouchers got used because we were told that we could not use them on the plane .

My other half doesn't have his luggage and I made a mistake by getting 3 check in bags instead of 2 and I'm going through changes to get credit for the one I didn't use. There giving me the run around!

Helpful attendants at check-in is very good. The $70 charge for a checked bags I didn't care for.and the constant charges for picking a seat and faster check-in are too much. Please cut the prices by at least 50% would be fantastic!

The flight was delayed over an hour and we had to sit on the plane. Crew does not apologize due to the delay. Spirit will NEVER do anything to give a customer a better experience. A child next to me was kicking me the whole time. I don't ever enjoy flying with Spirit.

waited 5 hours to tell us it was cancelled even when they knew

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Book cheap flights from Illinois to Pennsylvania

Recent round-trip flight deals

5/14Wed
nonstopSpirit Airlines
2h 21mORD-EWR
5/21Wed
nonstopSpirit Airlines
2h 32mEWR-ORD
$75
5/28Wed
nonstopSpirit Airlines
2h 21mORD-EWR
6/4Wed
nonstopSpirit Airlines
2h 32mEWR-ORD
$76
7/31Thu
nonstopFrontier
2h 20mORD-PHL
8/3Sun
nonstopFrontier
2h 30mPHL-ORD
$110
6/13Fri
nonstopFrontier
2h 27mORD-PHL
6/15Sun
nonstopFrontier
2h 32mPHL-ORD
$112
5/14Wed
nonstopUnited Airlines
2h 11mORD-LGA
5/21Wed
nonstopUnited Airlines
2h 41mLGA-ORD
$137
5/14Wed
nonstopSouthwest
2h 05mMDW-LGA
5/28Wed
nonstopSouthwest
2h 20mLGA-MDW
$137
5/14Wed
nonstopAmerican Airlines
2h 16mORD-JFK
5/21Wed
nonstopAmerican Airlines
3h 09mJFK-ORD
$138
5/13Tue
nonstopAmerican Airlines
2h 16mORD-JFK
5/25Sun
nonstopAmerican Airlines
3h 09mJFK-ORD
$147
5/28Wed
nonstopSouthwest
2h 10mMDW-LGA
6/4Wed
nonstopSouthwest
2h 20mLGA-MDW
$157
5/11Sun
nonstopUnited Airlines
2h 11mORD-LGA
5/14Wed
nonstopUnited Airlines
2h 41mLGA-ORD
$158

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Recent one-way flight deals

5/13Tue
nonstopSpirit Airlines
2h 21mORD-EWR
$35
5/28Wed
nonstopSpirit Airlines
2h 21mORD-EWR
$37
6/6Fri
nonstopFrontier
2h 26mORD-PHL
$54
6/2Mon
nonstopFrontier
2h 26mORD-PHL
$55
5/14Wed
nonstopSouthwest
2h 05mMDW-LGA
$69
5/20Tue
nonstopAmerican Airlines
2h 11mORD-LGA
$70
7/2Wed
nonstopUnited Airlines
2h 16mORD-PHL
$81
5/25Sun
nonstopUnited Airlines
1h 58mORD-DCA
$81
6/4Wed
nonstopAmerican Airlines
2h 04mORD-PHL
$89
8/21Thu
nonstopSouthwest
2h 10mMDW-LGA
$89

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Last minute flights from Illinois to Pennsylvania

Last minute flight, train and bus deals

5/5Mon
nonstopUnited Airlines
2h 15mORD-LGA
5/19Mon
nonstopUnited Airlines
2h 41mLGA-ORD
$174
5/5Mon
nonstopJetBlue
2h 17mORD-JFK
5/19Mon
nonstopJetBlue
2h 54mJFK-ORD
$174
5/5Mon
nonstopFrontier
2h 08mORD-PHL
5/12Mon
nonstopFrontier
2h 28mPHL-ORD
$182
5/5Mon
nonstopSpirit Airlines
2h 24mORD-EWR
5/17Sat
nonstopSpirit Airlines
2h 32mEWR-ORD
$186
5/5Mon
nonstopSpirit Airlines
2h 24mORD-EWR
5/17Sat
multi-stopSpirit Airlines
10h 29mEWR-ORD
$188
5/1Thu
multi-stopFrontier
4h 53mMDW-IAD
5/15Thu
multi-stopFrontier
9h 07mIAD-MDW
$200
5/5Mon
multi-stopAmerican Airlines
4h 43mORD-LGA
5/19Mon
nonstopAmerican Airlines
2h 33mLGA-ORD
$226
5/5Mon
multi-stopAmerican Airlines
4h 09mORD-JFK
5/19Mon
nonstopAmerican Airlines
3h 09mJFK-ORD
$246
5/5Mon
nonstopSouthwest
2h 10mMDW-LGA
5/19Mon
nonstopSouthwest
2h 15mLGA-MDW
$274
5/5Mon
nonstopSouthwest
2h 00mMDW-LGA
5/19Mon
multi-stopSouthwest
7h 20mLGA-MDW
$286

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Everything you need to know for your flight to Pennsylvania

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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