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Cheap flights from Philadelphia to Chicago from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Chicago departing on 12/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Frontier Logo
2:35 pm - 11:28 pmPHL-ORD
9h 53m1 stop
Frontier Logo
3:18 pm - 12:19 amORD-PHL
8h 01m1 stop
$108Frontier
Find Deal
Mon, Nov 3 - Thu, Nov 6
Frontier Logo
6:42 am - 12:59 amPHL-ORD
19h 17m1 stop
Frontier Logo
11:53 am - 12:39 amORD-PHL
11h 46m1 stop
$109Frontier
Find Deal
Mon, Oct 27 - Mon, Nov 3
Frontier Logo
5:50 am - 10:41 amPHL-ORD
5h 51m1 stop
Frontier Logo
3:18 pm - 12:19 amORD-PHL
8h 01m1 stop
$110Frontier
Find Deal
Mon, Nov 3 - Thu, Nov 6
Frontier Logo
6:00 am - 7:26 amPHL-ORD
2h 26mnonstop
Frontier Logo
8:26 am - 11:39 amORD-PHL
2h 13mnonstop
$112Frontier
Find Deal
Thu, Oct 30 - Mon, Nov 3
Frontier Logo
4:10 pm - 5:40 pmPHL-ORD
2h 30mnonstop
Frontier Logo
5:30 am - 8:37 amORD-PHL
2h 07mnonstop
$113Frontier
Find Deal
Mon, Oct 27 - Sat, Nov 22
Frontier Logo
6:00 am - 7:26 amPHL-ORD
2h 26mnonstop
Frontier Logo
8:26 am - 11:39 amORD-PHL
2h 13mnonstop
$114Frontier
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
6:00 am - 7:26 amPHL-ORD
2h 26mnonstop
Multiple Airlines Logo
10:52 am - 11:26 pmORD-PHL
11h 34m1 stop
$134Multiple Airlines
Find Deal
Mon, Nov 3 - Tue, Nov 4
Multiple Airlines Logo
3:10 pm - 12:27 amPHL-ORD
10h 17m1 stop
Multiple Airlines Logo
9:47 pm - 12:59 amORD-PHL
2h 12mnonstop
$138Multiple Airlines
Find Deal
Tue, Nov 4 - Mon, Nov 10
American Airlines Logo
7:35 am - 9:02 amPHL-ORD
2h 27mnonstop
American Airlines Logo
6:35 pm - 9:42 pmORD-PHL
2h 07mnonstop
$139American Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
Spirit Airlines Logo
5:00 pm - 11:34 pmPHL-ORD
7h 34m1 stop
Spirit Airlines Logo
3:21 pm - 11:16 pmORD-PHL
6h 55m1 stop
$156Spirit Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14

Frontier flights from Philadelphia to Chicago O'Hare Intl Airport

Our best Frontier deals on Philadelphia to Chicago O'Hare Intl Airport flight tickets
Frontier
Oct 25
PHL7:10 pmPhiladelphia
2h 38m
ORD8:48 pmChicago O'Hare Intl
Oct 27
ORD11:51 amChicago O'Hare Intl
2h 09m
PHL3:00 pmPhiladelphia
$108
Find similar
Frontier
Oct 27
PHL6:42 amPhiladelphia
19h 17m
1 stop
ORD12:59 amChicago O'Hare Intl
Nov 3
ORD11:53 amChicago O'Hare Intl
11h 46m
1 stop
PHL12:39 amPhiladelphia
$109
Find similar
Frontier
Nov 3
PHL5:50 amPhiladelphia
5h 51m
1 stop
ORD10:41 amChicago O'Hare Intl
Nov 6
ORD3:18 pmChicago O'Hare Intl
8h 01m
1 stop
PHL12:19 amPhiladelphia
$110
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Philadelphia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 11/3

2:35 pm-11:28 pm

1 stop9h 53m

Chicago O'Hare Intl

Thu 11/6

3:18 pm-12:19 am

1 stop8h 01m

$108

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 10/27

6:42 am-12:59 am

1 stop19h 17m

Chicago O'Hare Intl

Mon 11/3

11:53 am-12:39 am

1 stop11h 46m

$109

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 11/3

5:50 am-10:41 am

1 stop5h 51m

Chicago O'Hare Intl

Thu 11/6

3:18 pm-12:19 am

1 stop8h 01m

$110

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Thu 10/30

6:00 am-7:26 am

Nonstop2h 26m

Chicago O'Hare Intl

Mon 11/3

8:26 am-11:39 am

Nonstop2h 13m

$112

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 10/27

4:10 pm-5:40 pm

Nonstop2h 30m

Chicago O'Hare Intl

Sat 11/22

5:30 am-8:37 am

Nonstop2h 07m

$113

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 11/10

6:00 am-7:26 am

Nonstop2h 26m

Chicago O'Hare Intl

Mon 11/17

8:26 am-11:39 am

Nonstop2h 13m

$114

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 11/3

6:00 am-7:26 am

Nonstop2h 26m

Chicago O'Hare Intl

Tue 11/4

10:52 am-11:26 pm

1 stop11h 34m

$134

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Tue 11/4

3:10 pm-12:27 am

1 stop10h 17m

Chicago O'Hare Intl

Mon 11/10

9:47 pm-12:59 am

Nonstop2h 12m

$138

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Wed 12/3

7:35 am-9:02 am

Nonstop2h 27m

Chicago O'Hare Intl

Sat 12/6

6:35 pm-9:42 pm

Nonstop2h 07m

$139

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Wed 12/10

5:00 pm-11:34 pm

1 stop7h 34m

Chicago O'Hare Intl

Sun 12/14

3:21 pm-11:16 pm

1 stop6h 55m

$156

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Philadelphia to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Philadelphia averaging around $234.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $355. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $518.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Philadelphia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $258 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $432. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Philadelphia to Chicago O'Hare Intl flight route?

Fly from Philadelphia to Chicago O'Hare Intl for the best Philadelphia - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Philadelphia for as low as $215 on momondo.

What cabin class options are available on Philadelphia to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Philadelphia to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Chicago O'Hare Intl Airport.

How have Philadelphia to Chicago O'Hare Intl Airport flight prices changed over time?

As of October 2025, prices for Philadelphia to Chicago O'Hare Intl Airport flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Philadelphia to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Chicago O'Hare Intl Airport (PHL to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Chicago O'Hare Intl Airport

Best Price Found

$136

Fastest flight time

2h 20m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Philadelphia in the past 72 hours is $136. The best round-trip flight deal from Philadelphia to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $237.
The fastest flight from Philadelphia to Chicago O'Hare Intl Airport takes 2h 20m
Direct flights go from Philadelphia to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Philadelphia to Chicago O'Hare Intl by plane?

    Chicago O'Hare Intl is 678.6 mi away from Philadelphia. A reasonable flight in good conditions will take 2h 26m.

  • When did momondo last update prices for flights from Philadelphia Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Philadelphia Airport to Chicago O'Hare Intl Airport refresh daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Philadelphia Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Philadelphia to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Philadelphia to Chicago O'Hare Intl Airport?

Best airlines flying from Philadelphia to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Philadelphia to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $72Free CancellationRating
5.8
3,135 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $83Free CancellationRating
6.3
8,096 reviews
Search Spirit Airlines flights
DeltaPriceFrom $118Free CancellationRating
7.9
7,975 reviews
Search Delta flights
United AirlinesPriceFrom $157Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights
American AirlinesPriceFrom $166Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights

  • United Airlines Flights From Philadelphia to Chicago O'Hare Intl Airport

    The lowest priced United Airlines flight from Philadelphia to Chicago O'Hare Intl Airport from the last 72 hours was $157. Generally, United Airlines has 29 flights on this route every week with an average price of $326. United Airlines is rated 7.4/10 by our users.

  • American Airlines Flights From Philadelphia to Chicago O'Hare Intl Airport

    Across 11,042 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Philadelphia to Chicago O'Hare Intl Airport about 53 times each week, with ticket deals ranging from $166 to $309. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Orland Park
Hammond
Tinley Park
Janesville
Elgin
Aurora
Benton Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Chicago?

Finding the right flight to Chicago from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from Philadelphia to Chicago with flexible booking policies on momondo?

Flights from Philadelphia to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Chicago?

momondo helps you find the best flight between Philadelphia and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Philadelphia to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago O'Hare Intl Airport trip

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