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

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 Philadelphia.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Illinois 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 Philadelphia?

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 to Philadelphia with an airline and back to Illinois with another airline.

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

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 to Philadelphia from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$99 CHEAP FLIGHTS from Illinois to Philadelphia

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Flight Deals

Cheap Flights from Illinois to Philadelphia

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Philadelphia

Mon, Dec 21 - Tue, Jan 19

7:45 pm - 11:00 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 15mnonstop

6:15 am - 11:50 amPHL Philadelphia-ORD Chicago O'Hare Intl

6h 35m1 stop Atlanta Hartsfield-Jackson

$167Frontier

Mon, Oct 26 - Thu, Oct 29

7:44 pm - 10:37 pmORD Chicago O'Hare Intl-PHL Philadelphia

25h 53m1 stop Atlanta Hartsfield-Jackson

9:09 pm - 10:43 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 34mnonstop

$167Frontier

Thu, Dec 10 - Sat, Dec 12

11:25 am - 2:15 pmMDW Chicago Midway-PHL Philadelphia

1h 50mnonstop

4:05 pm - 5:20 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$208Southwest

Thu, Dec 10 - Sat, Dec 12

3:50 pm - 9:25 pmMDW Chicago Midway-PHL Philadelphia

4h 35m1 stop Lambert-St Louis

4:05 pm - 5:20 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$218Southwest

Sat, Oct 24 - Mon, Oct 26

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

2h 23mnonstop

6:43 pm - 12:51 pmPHL Philadelphia-ORD Chicago O'Hare Intl

19h 08m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson

$222Multiple Airlines

Wed, Dec 23 - Tue, Dec 29

7:45 pm - 11:00 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 15mnonstop

11:55 am - 5:42 pmPHL Philadelphia-ORD Chicago O'Hare Intl

6h 47m1 stop Minneapolis St Paul

$242Multiple Airlines

Sat, Oct 31 - Mon, Nov 2

5:29 pm - 9:07 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 38mnonstop

3:56 pm - 5:37 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 41mnonstop

$257American Airlines

Thu, Nov 5 - Mon, Nov 9

12:59 pm - 4:11 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

5:52 am - 7:27 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 35mnonstop

$257American Airlines

Sat, Oct 24 - Mon, Oct 26

9:04 am - 12:18 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 14mnonstop

9:45 am - 11:20 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 35mnonstop

$257United Airlines

Sat, Oct 24 - Tue, Oct 27

2:51 pm - 6:14 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

4:54 pm - 6:29 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 35mnonstop

$257United Airlines

Recent last minute flight deals from Illinois to Philadelphia

Fri, Oct 9 - Fri, Nov 6

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

2h 23mnonstop

9:09 pm - 10:43 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 34mnonstop

$184Frontier

Sat, Oct 10 - Fri, Oct 23

6:30 am - 1:16 amORD Chicago O'Hare Intl-PHL Philadelphia

17h 46m1 stop Denver Intl

9:09 pm - 10:39 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 30mnonstop

$185Frontier

Fri, Oct 9 - Wed, Nov 4

12:26 pm - 8:45 pmMDW Chicago Midway-PHL Philadelphia

7h 19m1 stop Knoxville McGhee Tyson

12:36 pm - 11:47 pmPHL Philadelphia-MDW Chicago Midway

12h 11m1 stop Atlanta Hartsfield-Jackson

$331Multiple Airlines

Fri, Oct 9 - Fri, Nov 6

12:26 pm - 8:45 pmMDW Chicago Midway-PHL Philadelphia

7h 19m1 stop Knoxville McGhee Tyson

5:22 pm - 11:47 pmPHL Philadelphia-MDW Chicago Midway

7h 25m1 stop Atlanta Hartsfield-Jackson

$338Multiple Airlines

Fri, Oct 9 - Wed, Nov 4

4:50 pm - 8:10 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 20mnonstop

6:37 pm - 8:30 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 53mnonstop

$370American Airlines

Fri, Oct 9 - Wed, Nov 4

11:45 am - 2:40 pmMDW Chicago Midway-PHL Philadelphia

1h 55mnonstop

11:45 am - 1:00 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$370Southwest

Wed, Oct 7 - Wed, Oct 14

5:03 pm - 10:52 pmMLI Moline Quad-City-PHL Philadelphia

4h 49m1 stop Chicago O'Hare Intl

5:43 am - 10:51 amPHL Philadelphia-MLI Moline Quad-City

6h 08m1 stop Chicago O'Hare Intl

$373American Airlines

Fri, Oct 9 - Fri, Nov 6

11:45 am - 2:40 pmMDW Chicago Midway-PHL Philadelphia

1h 55mnonstop

1:50 pm - 3:05 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$379Southwest

Tue, Oct 6 - Wed, Oct 7

11:25 am - 2:43 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 18mnonstop

7:10 pm - 8:40 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 30mnonstop

$395United Airlines

Tue, Oct 6 - Tue, Oct 13

7:00 am - 10:09 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 09mnonstop

7:10 pm - 8:40 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 30mnonstop

$395United Airlines

Recent direct flight deals from Illinois to Philadelphia

Fri, Dec 11 - Sun, Dec 13

9:34 pm - 12:49 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 15mnonstop

6:50 pm - 8:29 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 39mnonstop

$171Frontier

Fri, Oct 23 - Sun, Oct 25

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

2h 23mnonstop

9:09 pm - 10:39 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 30mnonstop

$172Frontier

Sat, Dec 19 - Tue, Dec 22

7:45 pm - 11:00 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 15mnonstop

4:56 pm - 6:40 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 44mnonstop

$174Frontier

Thu, Dec 10 - Sat, Dec 12

11:25 am - 2:15 pmMDW Chicago Midway-PHL Philadelphia

1h 50mnonstop

4:05 pm - 5:20 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$208Southwest

Thu, Dec 3 - Mon, Dec 7

11:25 am - 2:15 pmMDW Chicago Midway-PHL Philadelphia

1h 50mnonstop

6:20 pm - 7:35 pmPHL Philadelphia-MDW Chicago Midway

2h 15mnonstop

$230Southwest

Mon, Nov 2 - Mon, Nov 9

7:25 pm - 10:15 pmMDW Chicago Midway-PHL Philadelphia

1h 50mnonstop

6:25 pm - 7:35 pmPHL Philadelphia-MDW Chicago Midway

2h 10mnonstop

$243Southwest

Wed, Feb 3 - Sat, Feb 6

7:30 pm - 10:38 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 08mnonstop

7:00 am - 8:32 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 32mnonstop

$257American Airlines

Thu, Nov 19 - Sat, Nov 21

6:23 am - 9:31 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 08mnonstop

7:20 am - 9:04 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 44mnonstop

$257American Airlines

Wed, Oct 28 - Wed, Oct 28

11:07 am - 2:19 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 12mnonstop

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

2h 36mnonstop

$257United Airlines

Sat, Oct 31 - Sat, Nov 7

8:50 am - 12:04 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 14mnonstop

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

2h 36mnonstop

$257United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$99

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from Chicago Midway Airport to Philadelphia

How does KAYAK find such low prices on flights from Illinois to Philadelphia?
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 Philadelphia.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Philadelphia?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Illinois 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 Philadelphia?
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 to Philadelphia with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Philadelphia?
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 to Philadelphia from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Wildwood Crest

Newark

Essington

North Wildwood

Vineland

West Chester

Elkton

Willow Grove

Pottstown

Middletown

Voorhees

Kennett Square

Somers Point

Glen Mills

Wyomissing

Millville

Springfield

Blackwood

Phoenixville

Strasburg

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Complete your trip to Philadelphia with a hotel stay or car rental

Car rentals in Philadelphia

Hotels in Philadelphia

Vacations in Philadelphia

PHL

$99 Find Cheap Flights from Illinois to Philadelphia - Compare and Save

Cheap Flights from Illinois to Philadelphia

Recent round-trip flight deals from Illinois to Philadelphia

Recent one-way flight deals from Illinois to Philadelphia

Recent last minute flight deals from Illinois to Philadelphia

Recent direct flight deals from Illinois to Philadelphia

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High season

Cheapest flight

FAQs for booking flights from Illinois to Philadelphia

Traveling to a place near Philadelphia?

More options for your flight to Philadelphia

Complete your trip to Philadelphia with a hotel stay or car rental

Information on the airport you'll fly into in Philadelphia

Cabin class types available on flights to Illinois

Find direct flights for Philadelphia

Flights from domestic origins to Philadelphia

Flights to other popular destinations

Find deals for your return flight