How does KAYAK find such low prices on flights from Pennsylvania to Chicago O'Hare Airport?

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 Pennsylvania to Chicago O'Hare Airport.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Chicago O'Hare Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from 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 Pennsylvania to Chicago O'Hare Airport?

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 Chicago O'Hare Airport with an airline and back to Pennsylvania with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to Chicago O'Hare Airport?

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 Chicago O'Hare Airport from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$69 CHEAP FLIGHTS from Pennsylvania to Chicago O'Hare (ORD)

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Cheap Flights from Pennsylvania to O'Hare Intl

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 Pennsylvania to O'Hare Intl

Thu, Oct 22 - Sun, Oct 25

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

2h 30mnonstop

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

2h 23mnonstop

$167Frontier

Sun, Sep 6 - Mon, Oct 5

5:30 pm - 7:12 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 42mnonstop

6:20 am - 7:16 amORD Chicago O'Hare Intl-PHL Philadelphia

23h 56m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson

$167Frontier

Thu, Sep 24 - Mon, Sep 28

6:30 am - 7:58 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 28mnonstop

6:55 pm - 10:00 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 05mnonstop

$178American Airlines

Thu, Oct 1 - Sat, Oct 31

5:00 pm - 6:29 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

6:59 am - 10:06 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 07mnonstop

$178American Airlines

Wed, Oct 7 - Mon, Oct 12

2:11 pm - 2:55 pmPIT Pittsburgh-ORD Chicago O'Hare Intl

1h 44mnonstop

7:15 am - 9:54 amORD Chicago O'Hare Intl-PIT Pittsburgh

1h 39mnonstop

$181United Airlines

Thu, Oct 29 - Fri, Oct 30

1:00 pm - 7:20 pmPIT Pittsburgh-ORD Chicago O'Hare Intl

7h 20m1 stop New York LaGuardia

2:30 pm - 10:56 pmORD Chicago O'Hare Intl-PIT Pittsburgh

7h 26m1 stop New York LaGuardia

$184Delta

Thu, Dec 17 - Mon, Dec 21

6:00 am - 10:25 amPIT Pittsburgh-ORD Chicago O'Hare Intl

5h 25m1 stop Atlanta Hartsfield-Jackson

6:40 am - 2:36 pmORD Chicago O'Hare Intl-PIT Pittsburgh

6h 56m1 stop Atlanta Hartsfield-Jackson

$184Delta

Tue, Sep 29 - Fri, Oct 30

11:57 am - 1:13 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 16mnonstop

5:00 am - 12:29 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

6h 29m1 stop Newark

$190United Airlines

Fri, Oct 16 - Mon, Oct 19

6:00 am - 1:50 pmPHL Philadelphia-ORD Chicago O'Hare Intl

8h 50m1 stop Fort Lauderdale

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

2h 23mnonstop

$204Multiple Airlines

Fri, Oct 30 - Mon, Nov 9

6:00 am - 1:44 pmPHL Philadelphia-ORD Chicago O'Hare Intl

8h 44m1 stop Fort Lauderdale

4:42 pm - 7:58 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 16mnonstop

$204Multiple Airlines

Recent last minute flight deals from Pennsylvania to O'Hare Intl

Sun, Aug 30 - Sun, Sep 6

10:22 am - 11:55 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 33mnonstop

5:55 am - 9:04 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 09mnonstop

$207Frontier

Thu, Aug 27 - Sun, Nov 8

10:22 am - 11:55 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 33mnonstop

4:42 pm - 7:58 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 16mnonstop

$224Frontier

Thu, Aug 27 - Mon, Sep 28

7:00 am - 8:46 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 46mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$257JetBlue

Sat, Aug 29 - Sat, Sep 19

7:00 am - 8:46 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 46mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$266JetBlue

Sat, Aug 29 - Thu, Sep 24

2:30 pm - 4:15 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 45mnonstop

7:00 am - 10:15 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 15mnonstop

$272Delta

Sat, Aug 29 - Wed, Sep 23

2:30 pm - 4:15 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 45mnonstop

7:00 am - 10:15 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 15mnonstop

$272Delta

Sat, Aug 29 - Sat, Sep 5

1:25 pm - 3:09 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 44mnonstop

4:00 pm - 7:25 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 25mnonstop

$281United Airlines

Sat, Aug 29 - Wed, Sep 2

6:00 am - 7:40 amEWR Newark-ORD Chicago O'Hare Intl

2h 40mnonstop

7:05 am - 10:22 amORD Chicago O'Hare Intl-EWR Newark

2h 17mnonstop

$285United Airlines

Sat, Aug 29 - Wed, Sep 2

6:50 am - 8:36 amEWR Newark-ORD Chicago O'Hare Intl

2h 46mnonstop

1:15 pm - 4:39 pmORD Chicago O'Hare Intl-EWR Newark

2h 24mnonstop

$285American Airlines

Sat, Aug 29 - Tue, Sep 1

6:50 am - 8:36 amEWR Newark-ORD Chicago O'Hare Intl

2h 46mnonstop

5:49 pm - 9:14 pmORD Chicago O'Hare Intl-EWR Newark

2h 25mnonstop

$285American Airlines

Recent direct flight deals from Pennsylvania to O'Hare Intl

Sun, Sep 6 - Sun, Sep 6

10:22 am - 11:55 amPHL Philadelphia-ORD Chicago O'Hare Intl

2h 33mnonstop

8:30 pm - 11:53 pmORD Chicago O'Hare Intl-PHL Philadelphia

2h 23mnonstop

$168Frontier

Mon, Sep 14 - Fri, Sep 18

11:54 am - 1:30 pmPHL Philadelphia-ORD Chicago O'Hare Intl

2h 36mnonstop

7:25 am - 10:49 amORD Chicago O'Hare Intl-PHL Philadelphia

2h 24mnonstop

$168Frontier

Thu, Oct 1 - Sat, Oct 31

5:00 pm - 6:29 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

6:59 am - 10:06 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 07mnonstop

$178American Airlines

Thu, Sep 24 - Mon, Sep 28

6:30 am - 7:58 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 28mnonstop

6:55 pm - 10:00 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 05mnonstop

$178American Airlines

Wed, Oct 7 - Mon, Oct 12

2:11 pm - 2:55 pmPIT Pittsburgh-ORD Chicago O'Hare Intl

1h 44mnonstop

7:15 am - 9:54 amORD Chicago O'Hare Intl-PIT Pittsburgh

1h 39mnonstop

$181United Airlines

Fri, Oct 9 - Fri, Oct 16

7:46 pm - 8:37 pmPIT Pittsburgh-ORD Chicago O'Hare Intl

1h 51mnonstop

5:55 pm - 8:36 pmORD Chicago O'Hare Intl-PIT Pittsburgh

1h 41mnonstop

$191United Airlines

Wed, Sep 16 - Sat, Sep 19

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$237JetBlue

Tue, Sep 15 - Wed, Sep 16

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

10:59 am - 2:20 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 21mnonstop

$237JetBlue

Tue, Sep 8 - Wed, Sep 16

7:35 pm - 9:37 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

3h 02mnonstop

10:25 am - 1:49 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 24mnonstop

$242Delta

Tue, Sep 8 - Mon, Sep 14

7:35 pm - 9:37 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

3h 02mnonstop

6:00 am - 9:21 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 21mnonstop

$242Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$69

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Pittsburgh to Chicago O'Hare Airport

NFlew with United Airlines-Jul 2026

You need to check your own bags in, meaning you wait I line to print the ticket, put the tab on yourself and then go to another line to make sure the suitcase gets placed on the plane and under the 50lb weight limit. A lot of back and forth.

Verified travelerFlew with American Airlines-Jul 2024

Fly out the night before you have anything to do in Chicago so you don’t get delayed and miss out on plans

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

Gurnee

Merrillville

South Haven

Oak Brook

Tinley Park

Saint Joseph

Hammond

Elk Grove Village

Des Plaines

Hoffman Estates

South Holland

Portage

Oakbrook Terrace

Willowbrook

Lansing

Delavan

Alsip

Northbrook

Lisle

Valparaiso

Everything you need to know for your flight to O'Hare Intl

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Chicago O'Hare Airport (ORD)

ORD

$69 Find Cheap Flights from Pennsylvania to Chicago O'Hare Airport - Compare and Save

Cheap Flights from Pennsylvania to O'Hare Intl

Recent round-trip flight deals from Pennsylvania to O'Hare Intl

Recent one-way flight deals from Pennsylvania to O'Hare Intl

Recent last minute flight deals from Pennsylvania to O'Hare Intl

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Flights from Pennsylvania to O'Hare Intl: the best tips from KAYAK users

FAQs for booking Pennsylvania to Chicago O'Hare Airport flights

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Everything you need to know for your flight to O'Hare Intl

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Complete your trip to O'Hare Intl with a hotel stay or car rental

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