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Cheap flights from Pennsylvania to Illinois from $37

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 6/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — ORD
May 18 — May 251
From?
To?
Sat 5/18
Sat 5/25
1 adult, Economy
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How far in advance should I book a flight from Pennsylvania to Illinois?

To save on the cost of your flight from Pennsylvania to Illinois, book at least 49 days before your planned departure. Booking around this time can save you about 61% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $186 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $312.

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

The best pricing can be found in the month of September. Prices to Illinois from Pennsylvania average $211. You can even find prices in September for less than $211, as users have found deals to Illinois from as low as $60. The month of February appears to be one of the more expensive times to travel to Illinois from Pennsylvania. Flying in the targeted month can save you up to 32%.

When is the cheapest time to fly from Pennsylvania to Illinois (PA - IL)?

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

Cheap Frontier flights from Pennsylvania to Illinois

Explore cheap flight options specifically provided by Frontier for the route between Pennsylvania and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Take a look at some of the lowest-priced Frontier flights heading from Pennsylvania to Illinois. Deals update often to give you more flight options matching your criteria
Wed 5/298:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 6/55:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$58
Wed 6/59:09 amPHL - ORD
Nonstop2h 21mFrontier
Tue 6/115:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$60
Wed 7/319:09 amPHL - ORD
Nonstop2h 24mFrontier
Sat 8/176:41 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$66
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Tue 5/285:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$67
Tue 7/169:09 amPHL - ORD
Nonstop2h 24mFrontier
Fri 7/265:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$68
Sat 6/810:42 pmPHL - ORD
Nonstop2h 21mFrontier
Mon 6/105:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$69
Sat 5/259:09 amPHL - ORD
Nonstop2h 22mFrontier
Sat 6/15:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$73
Sat 5/259:09 amPHL - ORD
Nonstop2h 22mFrontier
Tue 6/45:35 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$74
Mon 7/19:10 amPHL - ORD
Nonstop2h 21mFrontier
Sat 7/66:41 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$76

Cheap Spirit Airlines flights from Pennsylvania to Illinois

Explore cheap flight options specifically provided by Spirit Airlines for the route between Pennsylvania and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Some of the best deals we've found on Spirit Airlines flights traveling from Pennsylvania to Illinois. Check back soon if you're not seeing flights that suit your needs.
Tue 6/45:10 amPHL - ORD
1 stop12h 25mSpirit Airlines
Tue 6/1111:02 amORD - PHL
1 stop12h 44mSpirit Airlines
Deal found 5/13$86
Tue 6/46:00 amPHL - ORD
1 stop27h 21mSpirit Airlines
Tue 6/118:50 pmORD - PHL
1 stop24h 09mSpirit Airlines
Deal found 5/12$90
Wed 5/296:00 amPHL - ORD
2 stops18h 29mSpirit Airlines
Tue 6/49:25 pmORD - PHL
1 stop9h 41mSpirit Airlines
Deal found 5/12$98
Tue 6/188:36 amLGA - ORD
Nonstop2h 38mSpirit Airlines
Wed 7/245:19 pmORD - LGA
Nonstop2h 15mSpirit Airlines
Deal found 5/12$99
Sat 6/89:55 amLGA - ORD
1 stop9h 20mSpirit Airlines
Sat 6/154:40 pmORD - LGA
Nonstop2h 18mSpirit Airlines
Deal found 5/12$100
Tue 6/48:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Sat 6/84:40 pmORD - LGA
Nonstop2h 18mSpirit Airlines
Deal found 5/12$102
Wed 6/58:36 amLGA - ORD
Nonstop2h 38mSpirit Airlines
Mon 6/105:18 pmORD - LGA
1 stop14h 42mSpirit Airlines
Deal found 5/12$104
Tue 5/218:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Tue 5/216:40 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 5/12$106
Tue 5/219:55 amLGA - ORD
1 stop11h 29mSpirit Airlines
Wed 5/2211:14 amORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 5/12$107

Cheap Pennsylvania to Illinois flights in May & June 2024

Find cheap flight options from Pennsylvania to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 13, 2024.
Scroll through some of the best deals on flights from Pennsylvania to Illinois in 2024. Check back in a little while for more flight options.
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Wed 5/225:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$48
Tue 5/288:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Wed 5/2911:14 amORD - LGA
Nonstop2h 11mSpirit Airlines
Deal found 5/13$51
Wed 5/298:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Tue 6/46:40 pmORD - LGA
1 stop13h 20mSpirit Airlines
Deal found 5/12$52
Wed 5/228:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 5/295:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$52
Tue 5/289:55 amLGA - ORD
1 stop11h 29mSpirit Airlines
Wed 5/295:19 pmORD - LGA
Nonstop2h 09mSpirit Airlines
Deal found 5/12$53
Wed 5/228:59 amPHL - ORD
Nonstop2h 22mFrontier
Sat 5/255:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$53
Tue 5/288:35 amLGA - ORD
Nonstop2h 39mSpirit Airlines
Wed 5/297:20 amORD - LGA
1 stop6h 10mSpirit Airlines
Deal found 5/13$54
Wed 5/298:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 6/55:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$58
Wed 6/58:10 pmLGA - ORD
Nonstop2h 42mSpirit Airlines
Wed 6/125:07 pmORD - LGA
Nonstop2h 18mSpirit Airlines
Deal found 5/12$59

Pennsylvania to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Pennsylvania and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Scroll through some of the best deals on flights from Pennsylvania to Illinois in 2024. Check back in a little while for more flight options.
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Wed 5/225:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/13$46
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Wed 5/225:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$48
Wed 5/228:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 5/295:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$52
Wed 5/228:59 amPHL - ORD
Nonstop2h 22mFrontier
Sat 5/255:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$53
Wed 5/298:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 6/55:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$58
Wed 6/59:09 amPHL - ORD
Nonstop2h 21mFrontier
Tue 6/115:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$60
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Thu 5/305:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$62
Wed 5/228:59 amPHL - ORD
Nonstop2h 22mMultiple Airlines
Wed 5/2910:58 amORD - PHL
1 stop12h 44mMultiple Airlines
Deal found 5/13$63
Wed 7/319:09 amPHL - ORD
Nonstop2h 24mFrontier
Sat 8/176:41 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$66

Non-stop flights to Illinois from Pennsylvania

Discover non-stop flight options from Pennsylvania to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
For a quicker trip, book one of these direct flights from Pennsylvania to Illinois. Those looking to potentially save on 1 or 2-stop flights from Pennsylvania to Illinois should utilize the search form at the the top of the page.
Wed 5/298:59 amPHL - ORD
Nonstop2h 22mFrontier
Wed 6/55:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$58
Wed 6/59:09 amPHL - ORD
Nonstop2h 21mFrontier
Tue 6/115:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$60
Wed 7/319:09 amPHL - ORD
Nonstop2h 24mFrontier
Sat 8/176:41 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$66
Tue 7/169:09 amPHL - ORD
Nonstop2h 24mFrontier
Fri 7/265:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$68
Sat 6/810:42 pmPHL - ORD
Nonstop2h 21mFrontier
Mon 6/105:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/12$69
Tue 6/119:10 amPHL - ORD
Nonstop2h 21mFrontier
Fri 6/145:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/13$71
Sat 6/2210:42 pmPHL - ORD
Nonstop2h 21mFrontier
Tue 6/255:01 amORD - PHL
Nonstop2h 02mFrontier
Deal found 5/13$72
Sat 5/259:09 amPHL - ORD
Nonstop2h 22mFrontier
Sat 6/15:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$73
Sat 5/259:09 amPHL - ORD
Nonstop2h 22mFrontier
Tue 6/45:35 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$74

Pennsylvania to Illinois flights leaving soon

Find last-minute flight options from Pennsylvania to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Have a look at some of the flights available from Pennsylvania to Illinois departing last-minute. Users should examine the flight details to ensure there are no surprises.
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mFrontier
Tue 5/285:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$67
Thu 5/239:31 amPHL - ORD
Nonstop2h 22mFrontier
Sat 5/255:01 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$68
Thu 5/239:31 amPHL - ORD
Nonstop2h 22mFrontier
Tue 5/285:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$76
Thu 5/239:31 amPHL - ORD
Nonstop2h 22mFrontier
Thu 5/305:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$78
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mMultiple Airlines
Tue 5/289:15 pmORD - PHL
1 stop10h 45mMultiple Airlines
Deal found 5/11$79
Thu 5/239:31 amPHL - ORD
Nonstop2h 22mFrontier
Tue 5/285:33 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/11$83
Thu 5/239:31 amPHL - ORD
Nonstop2h 22mFrontier
Sun 5/265:45 amORD - PHL
Nonstop2h 03mFrontier
Deal found 5/12$84
Tue 5/219:31 amPHL - ORD
Nonstop2h 22mMultiple Airlines
Wed 5/227:20 amORD - PHL
1 stop8h 52mMultiple Airlines
Deal found 5/13$87
Tue 5/216:00 amPHL - ORD
1 stop27h 45mSpirit Airlines
Tue 5/289:15 pmORD - PHL
1 stop26h 23mSpirit Airlines
Deal found 5/11$90

One-way flights to Illinois from Pennsylvania

Search for one-way flight options from Pennsylvania to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 13, 2024.
Users traveling one-way from Pennsylvania to Illinois can select one of these great deals. For those needing a return trip from Pennsylvania, there is a search form available above.
Sat 6/2910:42 pmPHL - ORD
Nonstop2h 21mFrontier
Deal found 5/13$37
Mon 7/19:10 amPHL - ORD
Nonstop2h 21mFrontier
Deal found 5/12$39
Sat 6/2210:42 pmPHL - ORD
Nonstop2h 21mFrontier
Deal found 5/12$40
Wed 6/129:10 amPHL - ORD
Nonstop2h 21mFrontier
Deal found 5/11$41
Sat 5/259:09 amPHL - ORD
Nonstop2h 22mFrontier
Deal found 5/12$42
Tue 5/283:25 pmEWR - ORD
1 stop18h 20mSpirit Airlines
Deal found 5/12$44
Sat 6/19:09 amPHL - ORD
Nonstop2h 22mFrontier
Deal found 5/12$44
Tue 6/115:10 amEWR - ORD
1 stop13h 30mSpirit Airlines
Deal found 5/12$45
Tue 6/115:05 amPHL - ORD
1 stop12h 23mSpirit Airlines
Deal found 5/12$45

Find flights from Pennsylvania to Illinois within your budget

Customize your flight search to find flights from Pennsylvania to Illinois 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 2,633,403 searches. Data last updated May 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$58 - $147

Route

Depart

Return

Price

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 5/29

Nonstop2h 22m

Chicago O'Hare Intl

Wed 6/5

Nonstop2h 02m

$58

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 6/5

Nonstop2h 21m

Chicago O'Hare Intl

Tue 6/11

Nonstop2h 02m

$60

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 7/31

Nonstop2h 24m

Chicago O'Hare Intl

Sat 8/17

Nonstop2h 03m

$66

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 6/12

1 stop11h 18m

Chicago O'Hare Intl

Wed 6/19

Nonstop2h 02m

$72

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Tue 6/4

1 stop12h 25m

Chicago O'Hare Intl

Tue 6/11

1 stop12h 44m

$86

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Tue 5/28

Nonstop2h 50m

Chicago O'Hare Intl

Thu 5/30

Nonstop2h 28m

$117

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 7/3

Nonstop2h 23m

Chicago O'Hare Intl

Fri 7/5

Nonstop1h 57m

$129

PhiladelphiaChicago O'Hare Intl

PHL - ORD

PHLORD

Philadelphia

Wed 7/3

1 stop10h 53m

Chicago O'Hare Intl

Fri 7/5

1 stop12h 32m

$137

New York John F Kennedy IntlChicago O'Hare Intl

JFK - ORD

JFKORD

New York John F Kennedy Intl

Mon 5/27

Nonstop2h 42m

Chicago O'Hare Intl

Wed 5/29

Nonstop2h 33m

$147

Flights are sorted by cheapest first

Deals found on 5/12

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 13, 2024.
Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and JetBlue from Pennsylvania to Illinois to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
6,054 reviews
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,144 reviews
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,736 reviews
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

JetBlue
7.6
Good
4,497 reviews
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Porter Airlines
7.4
Good
419 reviews
Southwest
8.2
Very good
6,054 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Overall

8.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

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

  • Can I find flights from Pennsylvania to Illinois for under $100 on Cheapflights?

    Yes, there are multiple flights from Pennsylvania to Illinois for under $100. The cheapest flight booked recently is on Frontier for just $58, but on average you can expect to pay $76.

  • Are there nonstop flights from Pennsylvania to Illinois for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Pennsylvania to Illinois under $100. A good price for a nonstop flight from Pennsylvania to Illinois is less than $75.

  • Are there last-minute flights available from Pennsylvania to Illinois for under $100?

    There are currently 20+ open flights from Pennsylvania to Illinois within the next 7 days for less than $100.

  • What days are nonstop flights available from Pennsylvania to Illinois?

    Nonstop flights can be found on the following days: Monday, Tuesday, Friday, Saturday.

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

    On average 13 flights depart from Pennsylvania to Illinois per day.
    Morning (6am - Noon) - 31% of flight departures
    Afternoon (Noon - 6pm) - 23% of flight departures
    Evening (6pm - Midnight) - 46% of flight departures

  • How long is the flight from Pennsylvania to Illinois?

    Frontier and Spirit Airlines can get you from Pennsylvania to Illinois in just under 2h 22m. Your travel time can differ by up to 10h 03m. There are 680 mi between Pennsylvania and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

  • What does PHL to ORD mean?

    Great question - PHL to ORD just means Philadelphia Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • Can I find deals for flights from Pennsylvania to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Pennsylvania to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Pennsylvania to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Pennsylvania to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Pennsylvania to Illinois that allow pets onboard?

    Many airlines flying from Pennsylvania to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Pennsylvania to Illinois?

    Yes, you can often find last-minute deals on Pennsylvania to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Pennsylvania to Illinois flight deals updated?

    The Pennsylvania to Illinois flight deals you see on this page were last updated on 5/13.

See more FAQs

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Alternative routes for Pennsylvania to Illinois
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Pennsylvania to Illinois

Discover the top 5 airlines that operate flights from Pennsylvania to Illinois. 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 2,633,403 searches. Data last updated May 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$47Average$162FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$81Average$175FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$134Average$414FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$137Average$426FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$150Average$376FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
USA to Japan flights
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Indianapolis to Orlando flights
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Pennsylvania to Indiana flights

Search flights from Pennsylvania to Illinois by cabin class

Find flights from Pennsylvania to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Prem Econ Class
Economy Class

Hourly flight availability from Pennsylvania to Illinois

Find hourly flight availability from Pennsylvania to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 13, 2024.
16%of flight departuresEarly morningMidnight to 6 am
42%of flight departuresMorning6 am to noon
37%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

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How does Cheapflights help users find flights from Pennsylvania to Illinois?

Deals for Pennsylvania to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Pennsylvania to Illinois?

Millions of users choose and trust Cheapflights to book the best flight deals from Pennsylvania to Illinois for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Pennsylvania to Illinois with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Pennsylvania to Illinois, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Pennsylvania to Illinois become cheaper?

Of course! You can now track prices for flights from Pennsylvania to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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