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Cheap flights from Chicago O'Hare Intl Airport to Philadelphia from $81

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 6/11. 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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:05 pm - 11:31 pm
ORD
-
PHL
2h 26mnonstop
Frontier Logo
5:18 pm - 7:00 pm
PHL
-
ORD
2h 42mnonstop
$189Frontier
Thu, Jul 30 - Sun, Aug 2
Frontier Logo
8:00 pm - 11:27 pm
ORD
-
PHL
2h 27mnonstop
Frontier Logo
7:00 am - 11:01 pm
PHL
-
ORD
17h 01m
1 stop
$190Frontier
Sat, Jun 6 - Mon, Jun 8
Frontier Logo
8:05 pm - 11:31 pm
ORD
-
PHL
2h 26mnonstop
Frontier Logo
9:00 am - 7:53 pm
PHL
-
ORD
11h 53m
2 stops
$191Frontier
Sat, Jul 18 - Tue, Jul 21
Frontier Logo
8:05 pm - 11:31 pm
ORD
-
PHL
2h 26mnonstop
Frontier Logo
6:00 am - 12:25 pm
PHL
-
ORD
7h 25m
1 stop
$192Frontier
Mon, Aug 3 - Tue, Aug 25
Frontier Logo
9:13 pm - 9:21 am
ORD
-
PHL
11h 08m
1 stop
Frontier Logo
5:18 pm - 7:00 pm
PHL
-
ORD
2h 42mnonstop
$193Frontier
Wed, Jul 22 - Mon, Jul 27
Frontier Logo
8:00 pm - 11:27 pm
ORD
-
PHL
2h 27mnonstop
Frontier Logo
5:05 pm - 6:43 pm
PHL
-
ORD
2h 38mnonstop
$194Frontier
Thu, Jun 4 - Mon, Jun 8
Frontier Logo
8:00 pm - 11:32 pm
ORD
-
PHL
2h 32mnonstop
Frontier Logo
5:06 pm - 6:47 pm
PHL
-
ORD
2h 41mnonstop
$195Frontier
Sat, Jun 13 - Sat, Jun 20
Frontier Logo
1:29 pm - 10:29 pm
ORD
-
PHL
8h 00m
1 stop
Frontier Logo
5:18 pm - 7:00 pm
PHL
-
ORD
2h 42mnonstop
$196Frontier
Sat, Jul 4 - Mon, Jul 6
Frontier Logo
8:00 pm - 11:32 pm
ORD
-
PHL
2h 32mnonstop
Frontier Logo
5:06 pm - 6:47 pm
PHL
-
ORD
2h 41mnonstop
$197Frontier
Thu, Jun 11 - Sat, Jun 13
Frontier Logo
8:05 pm - 11:31 pm
ORD
-
PHL
2h 26mnonstop
Frontier Logo
6:00 am - 12:25 pm
PHL
-
ORD
7h 25m
1 stop
$198Frontier
Thu, Jul 16 - Thu, Jul 23

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
Jul 30
ORD8:05 pmChicago O'Hare Intl
2h 26m
PHL11:31 pmPhiladelphia
Aug 2
PHL5:18 pmPhiladelphia
2h 42m
ORD7:00 pmChicago O'Hare Intl
$189
Frontier
Jun 6
ORD8:00 pmChicago O'Hare Intl
2h 27m
PHL11:27 pmPhiladelphia
Jun 8
PHL7:00 amPhiladelphia
17h 01m
1 stop
ORD11:01 pmChicago O'Hare Intl
$190
Frontier
Jul 18
ORD8:05 pmChicago O'Hare Intl
2h 26m
PHL11:31 pmPhiladelphia
Jul 21
PHL9:00 amPhiladelphia
11h 53m
2 stops
ORD7:53 pmChicago O'Hare Intl
$191

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 May 17, 2026.
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

Cheapest round-trip

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 7/30

8:05 pm-11:31 pm

Nonstop2h 26m

Philadelphia

Sun 8/2

5:18 pm-7:00 pm

Nonstop2h 42m

$189

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 6/6

8:00 pm-11:27 pm

Nonstop2h 27m

Philadelphia

Mon 6/8

7:00 am-11:01 pm

1 stop17h 01m

$190

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 7/18

8:05 pm-11:31 pm

Nonstop2h 26m

Philadelphia

Tue 7/21

9:00 am-7:53 pm

2 stops11h 53m

$191

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Mon 8/3

8:05 pm-11:31 pm

Nonstop2h 26m

Philadelphia

Tue 8/25

6:00 am-12:25 pm

1 stop7h 25m

$192

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 7/22

9:13 pm-9:21 am

1 stop11h 08m

Philadelphia

Mon 7/27

5:18 pm-7:00 pm

Nonstop2h 42m

$193
Quickest round-trip

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 6/4

8:00 pm-11:27 pm

Nonstop2h 27m

Philadelphia

Mon 6/8

5:05 pm-6:43 pm

Nonstop2h 38m

$194

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 6/13

8:00 pm-11:32 pm

Nonstop2h 32m

Philadelphia

Sat 6/20

5:06 pm-6:47 pm

Nonstop2h 41m

$195

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 7/4

1:29 pm-10:29 pm

1 stop8h 00m

Philadelphia

Mon 7/6

5:18 pm-7:00 pm

Nonstop2h 42m

$196

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 6/11

8:00 pm-11:32 pm

Nonstop2h 32m

Philadelphia

Sat 6/13

5:06 pm-6:47 pm

Nonstop2h 41m

$197

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 7/16

8:05 pm-11:31 pm

Nonstop2h 26m

Philadelphia

Thu 7/23

6:00 am-12:25 pm

1 stop7h 25m

$198

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

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Chicago O'Hare Intl Airport is in October. Flight prices, which tend to average around $189, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from Chicago O'Hare Intl Airport averaging around $230.

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 $262. 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 $377.

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 $258. 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 in the afternoon when prices are around $347.

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 from Chicago O'Hare Intl Airport 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 $282 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 $209 on momondo.

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

As of May 2026, prices for Chicago O'Hare Intl Airport to Philadelphia flights are approximately 95% more expensive 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

$127

Fastest flight time

2h 05m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Chicago O'Hare Intl Airport in the past 72 hours is $127. The best round-trip flight deal from Chicago O'Hare Intl Airport to Philadelphia found on momondo in the last 72 hours is $261.
The fastest flight from Chicago O'Hare Intl Airport to Philadelphia takes 2h 05m
Direct flights go from Chicago O'Hare Intl Airport to Philadelphia on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport in Philadelphia. From Chicago O'Hare Intl Airport there are direct flights to Philadelphia (PHL).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Philadelphia

  • 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 05m 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 $71Free CancellationRating
5.6
2,948 reviews
Search Frontier flights
United AirlinesPriceFrom $149Free CancellationRating
7.4
9,731 reviews
Search United Airlines flights
American AirlinesPriceFrom $156Free CancellationRating
7.1
11,654 reviews
Search American Airlines flights

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

    United Airlines operates around 20 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 $347, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Philadelphia from as low as $149 round-trip. United Airlines has been scored 7.4/10 in 9,731 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 $156, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $306 round-trip. American Airlines operates 45 flights out of Chicago O'Hare Intl Airport into Philadelphia in an average week, so prices vary by time and availability. 11,654 American Airlines reviews by users on momondo have scored the airline at 7.1/10.

Traveling to a place near Philadelphia?

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

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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