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Cheap flights from Chicago O'Hare Intl Airport to Philadelphia from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Philadelphia departing on 9/8. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Philadelphia (ORD-PHL)

Cheap round-trip flights

Frontier Logo
6:10 am - 9:25 amORD-PHL
2h 15mnonstop
Frontier Logo
3:07 pm - 3:17 pmPHL-ORD
25h 10m1 stop
$133Frontier
Find Deal
Fri, Sep 26 - Fri, Oct 3
Frontier Logo
6:35 am - 9:52 amORD-PHL
2h 17mnonstop
Frontier Logo
10:47 am - 12:20 pmPHL-ORD
2h 33mnonstop
$134Frontier
Find Deal
Sun, Aug 31 - Mon, Sep 1
Frontier Logo
6:10 am - 9:25 amORD-PHL
2h 15mnonstop
Frontier Logo
10:21 am - 11:58 amPHL-ORD
2h 37mnonstop
$135Frontier
Find Deal
Fri, Sep 19 - Sun, Sep 21
Frontier Logo
6:10 am - 9:25 amORD-PHL
2h 15mnonstop
Frontier Logo
10:21 am - 11:58 amPHL-ORD
2h 37mnonstop
$136Frontier
Find Deal
Thu, Sep 4 - Fri, Sep 5
American Airlines Logo
2:40 pm - 5:57 pmORD-PHL
2h 17mnonstop
American Airlines Logo
12:36 pm - 2:06 pmPHL-ORD
2h 30mnonstop
$139American Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
Logo
11:57 am - 11:47 pmORD-PHL
10h 50m1 stop
Logo
10:21 am - 11:58 amPHL-ORD
2h 37mnonstop
$155
Find Deal
Sat, Sep 13 - Sun, Sep 14
United Airlines Logo
7:30 am - 10:39 amORD-PHL
2h 09mnonstop
United Airlines Logo
5:06 pm - 6:28 pmPHL-ORD
2h 22mnonstop
$158United Airlines
Find Deal
Sat, Oct 4 - Mon, Oct 6
American Airlines Logo
9:37 pm - 12:45 amORD-PHL
2h 08mnonstop
American Airlines Logo
12:36 pm - 2:06 pmPHL-ORD
2h 30mnonstop
$162American Airlines
Find Deal
Mon, Sep 22 - Wed, Sep 24
Logo
10:18 am - 10:05 pmORD-PHL
10h 47m1 stop
Logo
6:00 am - 7:26 amPHL-ORD
2h 26mnonstop
$165
Find Deal
Wed, Nov 12 - Mon, Nov 17
United Airlines Logo
9:36 pm - 12:45 amORD-PHL
2h 09mnonstop
United Airlines Logo
6:42 pm - 8:10 pmPHL-ORD
2h 28mnonstop
$177United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29

Frontier flights from Chicago O'Hare Intl Airport to Philadelphia

Our best Frontier deals on Chicago O'Hare Intl Airport to Philadelphia flight tickets
Frontier
Sep 26
ORD6:10 amChicago O'Hare Intl
2h 15m
PHL9:25 amPhiladelphia
Oct 3
PHL3:07 pmPhiladelphia
25h 10m
1 stop
ORD3:17 pmChicago O'Hare Intl
$133
Find similar
Frontier
Aug 31
ORD6:35 amChicago O'Hare Intl
2h 17m
PHL9:52 amPhiladelphia
Sep 1
PHL10:47 amPhiladelphia
2h 33m
ORD12:20 pmChicago O'Hare Intl
$134
Find similar
Frontier
Sep 19
ORD6:10 amChicago O'Hare Intl
2h 15m
PHL9:25 amPhiladelphia
Sep 21
PHL10:21 amPhiladelphia
2h 37m
ORD11:58 amChicago O'Hare Intl
$135
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to Philadelphia

Our best United Airlines deals on Chicago O'Hare Intl Airport to Philadelphia flight tickets
United Airlines
Oct 4
ORD7:30 amChicago O'Hare Intl
2h 09m
PHL10:39 amPhiladelphia
Oct 6
PHL5:06 pmPhiladelphia
2h 22m
ORD6:28 pmChicago O'Hare Intl
$158
Find similar
United Airlines
Sep 26
ORD9:36 pmChicago O'Hare Intl
2h 09m
PHL12:45 amPhiladelphia
Sep 29
PHL6:42 pmPhiladelphia
2h 28m
ORD8:10 pmChicago O'Hare Intl
$177
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Philadelphia 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 August 18, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 9/26

6:10 am-9:25 am

Nonstop2h 15m

Philadelphia

Fri 10/3

3:07 pm-3:17 pm

1 stop25h 10m

$133

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sun 8/31

6:35 am-9:52 am

Nonstop2h 17m

Philadelphia

Mon 9/1

10:47 am-12:20 pm

Nonstop2h 33m

$134

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 9/19

6:10 am-9:25 am

Nonstop2h 15m

Philadelphia

Sun 9/21

10:21 am-11:58 am

Nonstop2h 37m

$135

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 9/4

6:10 am-9:25 am

Nonstop2h 15m

Philadelphia

Fri 9/5

10:21 am-11:58 am

Nonstop2h 37m

$136

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 9/23

2:40 pm-5:57 pm

Nonstop2h 17m

Philadelphia

Tue 9/30

12:36 pm-2:06 pm

Nonstop2h 30m

$139

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 9/13

11:57 am-11:47 pm

1 stop10h 50m

Philadelphia

Sun 9/14

10:21 am-11:58 am

Nonstop2h 37m

$155

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 10/4

7:30 am-10:39 am

Nonstop2h 09m

Philadelphia

Mon 10/6

5:06 pm-6:28 pm

Nonstop2h 22m

$158

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Mon 9/22

9:37 pm-12:45 am

Nonstop2h 08m

Philadelphia

Wed 9/24

12:36 pm-2:06 pm

Nonstop2h 30m

$162

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 11/12

10:18 am-10:05 pm

1 stop10h 47m

Philadelphia

Mon 11/17

6:00 am-7:26 am

Nonstop2h 26m

$165

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 9/26

9:36 pm-12:45 am

Nonstop2h 09m

Philadelphia

Mon 9/29

6:42 pm-8:10 pm

Nonstop2h 28m

$177

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 Philadelphia from

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

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 cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Chicago O'Hare Intl Airport is in September. Flight prices, which tend to average around $157, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Philadelphia, with average flight prices from Chicago O'Hare Intl Airport averaging around $164.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Chicago O'Hare Intl Airport to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $253. On the other hand, Sunday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $384.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Philadelphia in the evening for as low as $235. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $382.

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

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

How far in advance should I book a flight to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $264 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Chicago O'Hare Intl Airport for as low as $195 on momondo.

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

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

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

As of August 2025, prices for Chicago O'Hare Intl Airport to Philadelphia flights are approximately 23% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$73

Fastest flight time

2h 02m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Chicago O'Hare Intl Airport in the past 72 hours is $73. The best round-trip flight deal from Chicago O'Hare Intl Airport to Philadelphia found on momondo in the last 72 hours is $133.
The fastest flight from Chicago O'Hare Intl Airport to Philadelphia takes 2h 02m
Direct flights go from Chicago O'Hare Intl Airport to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

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

    Philadelphia is 678.6 mi away from Chicago O'Hare Intl. Typically, this will take 2h 08m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $61Free CancellationRating
5.8
3,212 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $63Free CancellationRating
6.3
8,038 reviews
Search Spirit Airlines flights
DeltaPriceFrom $108Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $145Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
American AirlinesPriceFrom $153Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    United Airlines operates around 9 flights from Chicago O'Hare Intl Airport to Philadelphia every week. The average price of these flights found in the last 72 hours has been $331, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Philadelphia from as low as $145 round-trip. United Airlines has been scored 7.4/10 in 8,925 reviews.

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

    The best American Airlines deal for Chicago O'Hare Intl Airport to Philadelphia flight tickets found on momondo in the last 72 hours was $153, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $291 round-trip. American Airlines operates 53 flights out of Chicago O'Hare Intl Airport into Philadelphia in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Reading
Dewey Beach
Newark
Cherry Hill
North Wildwood
Dover
Lewes
Avalon
Stone Harbor
Vineland
Essington
Exton
New Castle
Pottstown

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Philadelphia. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Chicago to Philadelphia flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Philadelphia.

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

If you are not ready to book a flight from Chicago to Philadelphia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Philadelphia and let you know when they change.

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