What airlines fly to Philadelphia?

United Airlines, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Philadelphia from Chicago according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 7 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How often are flights from Chicago to Philadelphia delayed?

Historically, on average around 19% of flights between Chicago and Philadelphia have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

What is the cheapest airline that flies from Chicago to Philadelphia?

United Airlines, Frontier, and Southwest are the most popular carriers operating from Chicago to Philadelphia

What is the most punctual flight time for Chicago to Philadelphia flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

How many flights depart from Chicago to Philadelphia on average per day?

The number of flights available between Chicago and Philadelphia is 35 per day as of January 2026. The most frequent departure time is 6:00PM, with 36% of daily flights leaving in the evening.

How many flights depart from Chicago to Philadelphia on average per week?

As of January 2026, there are 249 flights per week flying from Chicago to Philadelphia. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.

Which airline has the best punctuality record on Chicago to Philadelphia flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from Chicago to Philadelphia Airport?

Prices for flights from Chicago to Philadelphia Airport refresh daily.

How many operators does momondo search for flights from Chicago to Philadelphia Airport?

As of January 2026, there are 6 operators available to choose from for flights from Chicago to Philadelphia Airport.

How old do you have to be to fly from Chicago 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 to Philadelphia Airport.

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

The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$69 Cheap Flights from Chicago to Philadelphia in 2026

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8:43 pm - 8:47 am

ORD

PHL

11h 04m1 stop

7:47 pm - 9:27 pm

PHL

ORD

2h 40mnonstop

$98Multiple Airlines

Fri, Feb 6 - Mon, Feb 9

4:19 pm - 11:39 pm

ORD

PHL

6h 20m1 stop

7:47 pm - 9:27 pm

PHL

ORD

2h 40mnonstop

$100Frontier

Thu, Jan 22 - Mon, Jan 26

4:44 pm - 7:59 pm

ORD

PHL

2h 15mnonstop

6:00 am - 1:58 pm

PHL

ORD

8h 58m1 stop

$101Frontier

Fri, Jan 23 - Tue, Jan 27

7:20 am - 8:01 pm

ORD

PHL

11h 41m1 stop

1:40 pm - 9:03 pm

PHL

ORD

8h 23m1 stop

$102Spirit Airlines

Fri, Jan 23 - Tue, Jan 27

4:44 pm - 7:59 pm

ORD

PHL

2h 15mnonstop

10:45 pm - 10:41 am

PHL

ORD

12h 56m1 stop

$103Frontier

Fri, Jan 23 - Sun, Feb 1

4:19 pm - 11:39 pm

ORD

PHL

6h 20m1 stop

9:09 pm - 10:49 pm

PHL

ORD

2h 40mnonstop

$104Frontier

Thu, Jan 22 - Fri, Jan 30

4:44 pm - 7:59 pm

ORD

PHL

2h 15mnonstop

2:28 pm - 9:42 pm

PHL

ORD

8h 14m1 stop

$105Frontier

Fri, Jan 23 - Mon, Jan 26

4:44 pm - 7:59 pm

ORD

PHL

2h 15mnonstop

7:40 pm - 9:10 am

PHL

ORD

14h 30m1 stop

$106Frontier

Fri, Feb 6 - Sat, Feb 7

8:43 pm - 8:47 am

ORD

PHL

11h 04m1 stop

8:20 am - 9:03 pm

PHL

ORD

13h 43m1 stop

$107Spirit Airlines

Thu, Jan 22 - Sat, Jan 24

6:03 am - 7:13 pm

ORD

PHL

12h 10m1 stop

7:47 pm - 9:27 pm

PHL

ORD

2h 40mnonstop

$108Frontier

Sat, Jan 31 - Mon, Feb 2

Frontier flights from Chicago to Philadelphia

Our best Frontier deals on Chicago to Philadelphia flight tickets

Frontier

Jan 22

ORD4:19 pmChicago O'Hare Intl

6h 20m

1 stop

PHL11:39 pmPhiladelphia

Jan 26

PHL7:47 pmPhiladelphia

2h 40m

ORD9:27 pmChicago O'Hare Intl

$100

Frontier

Jan 23

ORD4:44 pmChicago O'Hare Intl

2h 15m

PHL7:59 pmPhiladelphia

Jan 27

PHL6:00 amPhiladelphia

8h 58m

1 stop

ORD1:58 pmChicago O'Hare Intl

$101

Frontier

Jan 23

ORD4:44 pmChicago O'Hare Intl

2h 15m

PHL7:59 pmPhiladelphia

Feb 1

PHL10:45 pmPhiladelphia

12h 56m

1 stop

ORD10:41 amChicago O'Hare Intl

$103

Spirit Airlines flights from Chicago to Philadelphia

Our best Spirit Airlines deals on Chicago to Philadelphia flight tickets

Spirit Airlines

Jan 23

ORD7:20 amChicago O'Hare Intl

11h 41m

1 stop

PHL8:01 pmPhiladelphia

Jan 27

PHL1:40 pmPhiladelphia

8h 23m

1 stop

ORD9:03 pmChicago O'Hare Intl

$102

Spirit Airlines

Jan 30

ORD8:43 pmChicago O'Hare Intl

11h 04m

1 stop

PHL8:47 amPhiladelphia

Feb 3

PHL12:40 pmPhiladelphia

12h 07m

1 stop

ORD11:47 pmChicago O'Hare Intl

$104

Spirit Airlines

Jan 22

ORD8:43 pmChicago O'Hare Intl

11h 04m

1 stop

PHL8:47 amPhiladelphia

Jan 24

PHL8:20 amPhiladelphia

13h 43m

1 stop

ORD9:03 pmChicago O'Hare Intl

$107

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 2/6

8:43 pm-8:47 am

1 stop11h 04m

Philadelphia

Mon 2/9

7:47 pm-9:27 pm

Nonstop2h 40m

$98

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/22

4:19 pm-11:39 pm

1 stop6h 20m

Philadelphia

Mon 1/26

7:47 pm-9:27 pm

Nonstop2h 40m

$100

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 1/23

4:44 pm-7:59 pm

Nonstop2h 15m

Philadelphia

Tue 1/27

6:00 am-1:58 pm

1 stop8h 58m

$101

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 1/23

7:20 am-8:01 pm

1 stop11h 41m

Philadelphia

Tue 1/27

1:40 pm-9:03 pm

1 stop8h 23m

$102

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 1/23

4:44 pm-7:59 pm

Nonstop2h 15m

Philadelphia

Sun 2/1

10:45 pm-10:41 am

1 stop12h 56m

$103

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/22

4:19 pm-11:39 pm

1 stop6h 20m

Philadelphia

Fri 1/30

9:09 pm-10:49 pm

Nonstop2h 40m

$104

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 1/23

4:44 pm-7:59 pm

Nonstop2h 15m

Philadelphia

Mon 1/26

2:28 pm-9:42 pm

1 stop8h 14m

$105

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 2/6

4:44 pm-7:59 pm

Nonstop2h 15m

Philadelphia

Sat 2/7

7:40 pm-9:10 am

1 stop14h 30m

$106

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/22

8:43 pm-8:47 am

1 stop11h 04m

Philadelphia

Sat 1/24

8:20 am-9:03 pm

1 stop13h 43m

$107

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 1/31

6:03 am-7:13 pm

1 stop12h 10m

Philadelphia

Mon 2/2

7:47 pm-9:27 pm

Nonstop2h 40m

$108

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How to get the cheapest flight ticket from Chicago 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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Chicago is in October. Flight prices, which tend to average around $188, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Philadelphia, with average flight prices from Chicago averaging around $215.

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

The cheapest day to depart from Chicago to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $270. On the other hand, Sunday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $395.

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 to Philadelphia in the evening for as low as $260. 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 $386.

What is the cheapest Chicago to Philadelphia flight route?

Fly from Chicago O'Hare Intl to Philadelphia for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $274 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Chicago for as low as $204 on momondo.

What cabin class options are available on Chicago to Philadelphia flights?

There are 4 cabin classes available to choose from on Chicago 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 to Philadelphia flight prices changed over time?

As of January 2026, prices for Chicago to Philadelphia flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Philadelphia (CHI to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Philadelphia

Best Price Found	$133
Fastest flight time	1h 50m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from Chicago in the past 72 hours is $133. The best round-trip flight deal from Chicago to Philadelphia found on momondo in the last 72 hours is $168.

The fastest flight from Chicago to Philadelphia takes 1h 50m

Direct flights go from Chicago to Philadelphia every day.

There is 1 airport in Philadelphia. From Chicago there are direct flights to Philadelphia (PHL).

Search flight deals

How far is Chicago to Philadelphia by plane?
The straight-line distance from Chicago to Philadelphia is 663.6 mi. By plane, this route typically takes 1h 50m.
When did momondo last update prices for flights from Chicago to Philadelphia Airport?
Prices for flights from Chicago to Philadelphia Airport refresh daily.
How many operators does momondo search for flights from Chicago to Philadelphia Airport?
As of January 2026, there are 6 operators available to choose from for flights from Chicago to Philadelphia Airport.
How old do you have to be to fly from Chicago 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 to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago to Philadelphia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago to Philadelphia is Boeing 737-800 (24.40% of total bookings). The next most popular plane models are Boeing 737-900 (10.89%), Airbus A320-100/200 (10.47%), and Airbus A319 (9.72%).
What is the most popular airline from Chicago to Philadelphia?
Based on momondo bookings for flights between Chicago and Philadelphia, the leading airline is Frontier, making up 34% of the total bookings. Other popular airlines include American Airlines with 33%, United Airlines with 17%, and Southwest with 16%.

Best airlines flying from Chicago to Philadelphia

Compare and see reviews for airlines that fly from Chicago to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $63	Free Cancellation	Rating 6.3 8,289 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $67	Free Cancellation	Rating 5.7 3,061 reviews	Search Frontier flights
Delta	PriceFrom $108	Free Cancellation	Rating 7.9 8,027 reviews	Search Delta flights
United Airlines	PriceFrom $149	Free Cancellation	Rating 7.4 9,139 reviews	Search United Airlines flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 11,095 reviews	Search American Airlines flights
Southwest	PriceFrom $167	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights

Southwest Flights From Chicago to Philadelphia
Across 15 Southwest flights from Chicago to Philadelphia this week, the average price was $302, with the best Southwest deals starting from $167 round-trip. 4,250 users have rated Southwest on momondo, with an average score of 8.0/10.
United Airlines Flights From Chicago to Philadelphia
$149 is the best United Airlines flight deal from Chicago to Philadelphia found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $322, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,139 user reviews) flies into Philadelphia from Chicago 26 times in an average week so prices can vary.

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Why use momondo?

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

Finding the right flight to Philadelphia from Chicago 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 Philadelphia quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Philadelphia from Chicago with this policy.

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

momondo helps you find the best flight between Chicago and Philadelphia 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 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.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Chicago to Philadelphia from $69

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 to Philadelphia departing on 1/31. 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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Frontier flights from Chicago to Philadelphia

Our best Frontier deals on Chicago to Philadelphia flight tickets

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Our best Spirit Airlines deals on Chicago to Philadelphia flight tickets

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Use the filters below to find and compare flights from Chicago to Philadelphia that are best for you.

See travel insights to Philadelphia from

How to get the cheapest flight ticket from Chicago to Philadelphia

What is the cheapest month to fly to Philadelphia?

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

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

What is the cheapest Chicago to Philadelphia flight route?

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

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

What cabin class options are available on Chicago to Philadelphia flights?

There are 4 cabin classes available to choose from on Chicago 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 to Philadelphia flight prices changed over time?

As of January 2026, prices for Chicago to Philadelphia flights are approximately 0% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago to Philadelphia?

United Airlines, Frontier, and Southwest are the most popular carriers operating from Chicago to Philadelphia

What airlines fly to Philadelphia?

How often are flights from Chicago to Philadelphia delayed?

Historically, on average around 19% of flights between Chicago and Philadelphia have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

What is the most punctual flight time for Chicago to Philadelphia flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to Philadelphia flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

How many flights depart from Chicago to Philadelphia on average per day?

The number of flights available between Chicago and Philadelphia is 35 per day as of January 2026. The most frequent departure time is 6:00PM, with 36% of daily flights leaving in the evening.

How many flights depart from Chicago to Philadelphia on average per week?

As of January 2026, there are 249 flights per week flying from Chicago to Philadelphia. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.

When to book flights from Chicago to Philadelphia

Cheap Chicago to Philadelphia (CHI to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Philadelphia

Best Price Found

Fastest flight time

Direct flights

Airports in Philadelphia

How far is Chicago to Philadelphia by plane?

When did momondo last update prices for flights from Chicago to Philadelphia Airport?

How many operators does momondo search for flights from Chicago to Philadelphia Airport?

How old do you have to be to fly from Chicago to Philadelphia Airport?

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

What is the most popular plane model from Chicago to Philadelphia?

What is the most popular airline from Chicago to Philadelphia?

Best airlines flying from Chicago to Philadelphia

Compare and see reviews for airlines that fly from Chicago to Philadelphia with momondo

Southwest Flights From Chicago to Philadelphia

United Airlines Flights From Chicago to Philadelphia

Traveling to a place near Philadelphia?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Pennsylvania