HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$89+ Cheap flights from Chicago (CHI) to Philadelphia (PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PHL
Mar 27 — Apr 31
Fri 3/27
Fri 4/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Chicago to Philadelphia are usually found in October or January, booked 85 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Chicago to Philadelphia

Cheapest flights from Chicago to Philadelphia
Explore the most affordable flight options available from Chicago to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2026.

This Frontier deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/272:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Mon 5/46:29 pm
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/23$117
This Flightnetwork deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:52 pm
ORD
-
PHL
1 stop21h 36m
Frontier
Sun 4/1911:58 am
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/23$119
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/183:15 pm
ORD
-
PHL
1 stop7h 41m
Multiple Airlines
Sun 4/1911:58 am
PHL
-
ORD
Nonstop2h 34m
Multiple Airlines
Deal found 2/21$120
This Expedia deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:04 pm
ORD
-
PHL
Nonstop2h 33m
Frontier
Sat 6/65:24 pm
PHL
-
ORD
Nonstop2h 40m
Frontier
Deal found 2/23$121
This Frontier deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Sun 5/36:29 pm
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/23$122
This Expedia deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Mon 4/276:29 pm
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/24$125
This Frontier deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Fri 5/16:29 pm
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/24$126
This Frontier deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/172:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Sun 4/194:30 pm
PHL
-
ORD
1 stop8h 29m
Frontier
Deal found 2/25$129
This Frontier deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:28 pm
ORD
-
PHL
1 stop14h 42m
Frontier
Sun 4/1911:58 am
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/22$130
This Frontier deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/42:20 pm
ORD
-
PHL
Nonstop2h 14m
Frontier
Sun 5/106:34 pm
PHL
-
ORD
Nonstop2h 34m
Frontier
Deal found 2/24$131
This Frontier deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
MDW
-
PHL
1 stop10h 49m
Frontier
Mon 5/49:17 am
PHL
-
MDW
1 stop11h 14m
Frontier
Deal found 2/24$160
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:50 pm
MDW
-
PHL
Nonstop2h 00m
Southwest
Sat 4/253:45 pm
PHL
-
MDW
Nonstop2h 15m
Southwest
Deal found 2/23$163

Find flight deals from Chicago to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Frontier)

One-way from

$89
(Southwest)

Popular in

March

Cheapest in

October

Average price

$350

Good round-trip deal

$283 or less

Good one-way deal

$171 or less
Provider with most accurate pricing for Chicago (CHI)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Philadelphia flights.
Search Deals
From Chicago (CHI) to Philadelphia
Search Deals
One-way flight from Chicago (CHI) to Philadelphia
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Philadelphia.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Philadelphia.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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, Cheapflights users made 2,558,603 searches. Data last updated February 25, 2026.
Use the filters below to find and compare flights from Chicago to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 4/18

2:20 pm-5:32 pm

Nonstop2h 12m

Philadelphia

Sun 4/26

6:04 am-7:32 am

Nonstop2h 28m

$140

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 4/8

9:04 am-12:17 pm

Nonstop2h 13m

Philadelphia

Sat 4/18

4:55 pm-6:23 pm

Nonstop2h 28m

$175

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 4/10

2:20 pm-5:33 pm

Nonstop2h 13m

Philadelphia

Mon 4/13

6:17 am-7:45 am

Nonstop2h 28m

$175

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 4/23

9:40 pm-12:45 am

Nonstop2h 05m

Philadelphia

Sun 4/26

6:04 am-7:32 am

Nonstop2h 28m

$177

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 4/7

6:20 pm-9:32 pm

Nonstop2h 12m

Philadelphia

Sat 4/11

7:45 pm-11:43 pm

1 stop4h 58m

$185

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 4/14

6:20 pm-9:32 pm

Nonstop2h 12m

Philadelphia

Wed 4/15

10:33 am-2:27 pm

1 stop4h 54m

$185

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 3/7

12:25 pm-11:04 pm

1 stop9h 39m

Philadelphia

Wed 3/11

6:00 am-7:11 pm

1 stop14h 11m

$186

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 3/7

12:25 pm-11:04 pm

1 stop9h 39m

Philadelphia

Sun 3/8

12:45 pm-2:21 pm

Nonstop2h 36m

$189

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 3/7

12:25 pm-11:04 pm

1 stop9h 39m

Philadelphia

Thu 3/12

12:45 pm-2:21 pm

Nonstop2h 36m

$189

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Tue 4/28

12:52 pm-6:23 pm

1 stop4h 31m

Philadelphia

Wed 4/29

9:42 am-12:43 pm

1 stop4h 01m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 44 resultsSorted by cheapest first
1
2
3
...
5

Compare providers for flights from Chicago to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Philadelphia in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Philadelphia

How far ahead should I book a flight from Chicago to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Philadelphia. Price data was last updated on February 20, 2026.

Booking 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Philadelphia?

Currently, January is the cheapest month in which you can book a flight from Chicago to Philadelphia (average of $34). Flying from Chicago to Philadelphia in July is currently the most expensive (average of $103). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to PHL?

Find hourly flight availability from Chicago to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 25, 2026.

It’s typically best to fly out from Chicago to Philadelphia in the evening. Doing so could potentially save you 17% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Chicago to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Philadelphia. Price data was last updated on February 21, 2026.

Travelers seeking maximum savings on their Chicago to Philadelphia flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Philadelphia

Explore weekly flight availability from Chicago to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 25, 2026.

The most flights from CHI to PHL are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

How much does it cost to fly round-trip from Chicago to Philadelphia?

How often are flights from Chicago to Philadelphia delayed?

About 20% of weekly flights between Chicago and Philadelphia have experienced delays in the past year, with the average delay time being 138 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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

Over the last year, United Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.

The best insider tips for Chicago to Philadelphia flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Philadelphia trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated February 25, 2026.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Chicago to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,299 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,299 reviews
Southwest
8.0
Very good
4,299 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,348 reviews
Southwest
8.0
Very good
4,299 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,352 reviews
Southwest
8.0
Very good
4,299 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,040 reviews
Southwest
8.0
Very good
4,299 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Chicago to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Philadelphia from Chicago?

    If you book a flight to Philadelphia from Chicago, you will be flying to Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 39 flights from Chicago to Philadelphia per day from 6 different airlines.

  • How long is the flight from Chicago to Philadelphia?

    A quick flight from Chicago to Philadelphia can take about 2h. United Airlines provides one of the quickest options available for as low as $199. The distance between Chicago and Philadelphia is about 666 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago to Philadelphia round-trip?

    According to our current data, Spirit Airlines ($63), Frontier ($67), and Delta ($98) offers the cheapest pricing from Chicago to Philadelphia. You may be able to fly from Chicago to Philadelphia for 76% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago to Philadelphia one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $49. Users have also found prices from $80 and $81 on American Airlines and Spirit Airlines, respectively.

  • What are the most reliable airlines from Chicago to Philadelphia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Philadelphia on time: United Airlines (85%), Republic Airways (81%), Iberia (79%).

  • What are the cheapest flights from Chicago to Philadelphia?

    The cheapest flight price from Chicago to Philadelphia is $99. On average you can expect to pay $853. The most popular route, (Chicago O'Hare Intl - Philadelphia), can usually be booked for $104.

  • Can I find deals for flights from Chicago to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Chicago to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Philadelphia.

  • Can I find deals for business class flights from Chicago to Philadelphia?

    Yes. Cheapflights offers flight deals from Chicago to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Philadelphia?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Philadelphia (average of $34). Flying from Chicago to Philadelphia in July is currently the most expensive (average of $103). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Newark

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Newark flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Reagan-National flights
Midway to John F Kennedy Intl flights
O'Hare Intl to Philadelphia flights
Midway to LaGuardia flights
Midway to Newark flights
Midway to Dulles Intl flights
St. Louis to LaGuardia flights
St. Louis to Newark flights
Midway to Reagan-National flights
St. Louis to Dulles Intl flights
Midway to Philadelphia flights
St. Louis to John F Kennedy Intl flights
O'Hare Intl to Pittsburgh flights
St. Louis to Philadelphia flights
St. Louis to Reagan-National flights
Midway to Pittsburgh flights
O'Hare Intl to Harrisburg flights
O'Hare Intl to Allentown flights
Moline to LaGuardia flights
Moline to Newark flights
O'Hare Intl to State College flights
St. Louis to Pittsburgh flights
O'Hare Intl to Scranton flights
Bloomington to Dulles Intl flights
Bloomington to Reagan-National flights
Midway to Allentown flights
Peoria to Dulles Intl flights
Bloomington to John F Kennedy Intl flights
Peoria to Reagan-National flights
Bloomington to Newark flights
Bloomington to Philadelphia flights
Midway to Harrisburg flights
Peoria to LaGuardia flights
Moline to Philadelphia flights
Moline to Dulles Intl flights
Moline to Reagan-National flights
St. Louis to Harrisburg flights
Champaign to Reagan-National flights
Peoria to Philadelphia flights
Champaign to Dulles Intl flights
Evansville to Newark flights
Evansville to Philadelphia flights

Top 6 airlines flying from Chicago to Philadelphia

Discover the top 6 airlines that operate flights from Chicago to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$63Average$162FlexibilityNo cancel feeOn-time65%
FrontierCheapest$67Average$165FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$477FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$148Average$324FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$157Average$293FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$167Average$315FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.