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$79+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PHL
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Philadelphia are usually found in September or August, booked 85 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap 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 July 28, 2025.

Round-trip from

$144
(FlightHub)

One-way from

$79
(Southwest)

Popular in

March

Cheapest in

September

Average price

$202

Good round-trip deal

$151 or less

Good one-way deal

$89 or less
From Chicago (CHI) to Philadelphia
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One-way flight from Chicago (CHI) to Philadelphia
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Highest demand for flights based on searches. 25% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Philadelphia.
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Price to beat on a one-way flight from Chicago (CHI) to Philadelphia.
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Find 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 July 28, 2025.

This FlightHub deal was found by Cheapflights users on 7/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/208:12 pmORD - PHL
1 stop12h 44mMultiple Airlines
Sun 8/3110:47 amPHL - ORD
Nonstop2h 33mMultiple Airlines
Deal found 7/26$146
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:05 pmMDW - PHL
Nonstop2h 10mFrontier
Mon 8/2512:00 pmPHL - MDW
Nonstop2h 10mFrontier
Deal found 7/28$147
This Frontier deal was found by Cheapflights users on 7/25. 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.
Thu 11/66:20 amORD - PHL
Nonstop2h 06mFrontier
Sun 11/910:21 amPHL - ORD
Nonstop2h 31mFrontier
Deal found 7/25$147
This FlightHub deal was found by Cheapflights users on 7/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:56 amORD - PHL
1 stop6h 42mSpirit Airlines
Wed 8/204:58 pmPHL - ORD
1 stop8h 01mSpirit Airlines
Deal found 7/26$163
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:50 pmORD - PHL
Nonstop2h 11mAmerican Airlines
Tue 9/210:45 amPHL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 7/27$177
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:50 amORD - PHL
Nonstop2h 12mUnited Airlines
Sat 8/307:58 pmPHL - ORD
1 stop4h 17mUnited Airlines
Deal found 7/25$185
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:17 pmMDW - PHL
1 stop4h 05mDelta
Mon 9/16:00 amPHL - MDW
1 stop3h 35mDelta
Deal found 7/28$197
This Southwest deal was found by Cheapflights users on 7/27. 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 9/241:10 pmMDW - PHL
1 stop7h 40mSouthwest
Sun 9/285:30 amPHL - MDW
Nonstop2h 00mSouthwest
Deal found 7/27$205

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 July 28, 2025.
Use the filters below to find and compare flights from Chicago to Philadelphia that are best for you.

Fly from

Chicago

Fly to

Philadelphia

Route

Depart

Return

Price

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 8/20

8:12 pm-9:56 am

1 stop12h 44m

Philadelphia

Sun 8/31

10:47 am-12:20 pm

Nonstop2h 33m

$146

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Thu 8/21

2:05 pm-5:15 pm

Nonstop2h 10m

Philadelphia

Mon 8/25

12:00 pm-1:10 pm

Nonstop2h 10m

$147

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 8/14

5:00 pm-8:24 pm

Nonstop2h 24m

Philadelphia

Sun 8/17

9:19 pm-10:54 pm

Nonstop2h 35m

$148

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 8/20

6:56 am-2:38 pm

1 stop6h 42m

Philadelphia

Wed 8/20

4:58 pm-11:59 pm

1 stop8h 01m

$163

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 8/30

4:50 pm-8:01 pm

Nonstop2h 11m

Philadelphia

Tue 9/2

10:45 am-12:20 pm

Nonstop2h 35m

$177

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 8/23

8:50 am-12:02 pm

Nonstop2h 12m

Philadelphia

Sat 8/30

7:58 pm-11:15 pm

1 stop4h 17m

$185

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Sat 8/30

6:17 pm-11:22 pm

1 stop4h 05m

Philadelphia

Mon 9/1

6:00 am-8:35 am

1 stop3h 35m

$197

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Wed 9/24

1:10 pm-9:50 pm

1 stop7h 40m

Philadelphia

Sun 9/28

5:30 am-6:30 am

Nonstop2h 00m

$205

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Tue 8/19

7:00 am-9:55 am

Nonstop1h 55m

$79

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 8/19

9:11 pm-12:24 am

Nonstop2h 13m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 17 results
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The best insider tips for Chicago to Philadelphia flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Philadelphia trip
Airports
ORD

ORD's free shuttle train connects terminals, useful for navigating between nearly 200 gates. Plan for long walks if switching terminals.

Read more about ORDby Ramsey Qubein
MDW

Use the “L” train for easy access to MDW. The Orange Line stops directly at the airport, taking less than 30 minutes from downtown.

Read more about MDWby Ramsey Qubein
PHL

For quick access to downtown, use SEPTA's Airport Line. It's efficient and operates from 5:00 a.m. to midnight.

Read more about PHLby Mark Chesnut
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

Ramsey Qubein

Ramsey Qubein

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

Mark Chesnut

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

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 July 25, 2025.

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, August is the cheapest month in which you can book a flight from Chicago to Philadelphia (average of $236). Flying from Chicago to Philadelphia in March is currently the most expensive (average of $295). 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 July 28, 2025.

It’s typically best to fly out from Chicago to Philadelphia in the evening. Doing so could potentially save you 40% 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 July 27, 2025.

Travelers seeking maximum savings on their Chicago to Philadelphia flight should consider departing on Saturday 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 July 28, 2025.

The most flights from CHI to PHL are scheduled on a Sunday (51 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (34 on average).

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

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 July 28, 2025.
See what other customers who have flown with Southwest, Delta, and United 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
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,237 reviews
Southwest
8.0
Very good
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,975 reviews
Southwest
8.0
Very good
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,892 reviews
Southwest
8.0
Very good
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,237 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 44 flights from Chicago to Philadelphia per day from 6 different airlines.

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

    According to our current data, Frontier ($144), Spirit Airlines ($163), and American Airlines ($177) offers the cheapest pricing from Chicago to Philadelphia. You may be able to fly from Chicago to Philadelphia for 41% 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 Southwest. According to our data, you can fly for as low as $79. Users have also found prices from $79 and $80 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: Air Canada (79%), United Airlines (74%), Air New Zealand (68%).

  • What are the cheapest flights from Chicago to Philadelphia?

    The cheapest flight price from Chicago to Philadelphia is $70. On average you can expect to pay $1,219. The most popular route, (Chicago O'Hare Intl - Philadelphia), can usually be booked for $88.

  • 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, August is the cheapest month in which you can book a flight from Chicago to Philadelphia (average of $236). Flying from Chicago to Philadelphia in March is currently the most expensive (average of $295). 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
Vineland
Wildwood
King of Prussia
Pottstown
Cherry Hill
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

Browse thousands of different options on Cheapflights for your next trip

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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
Midway to Newark flights
Midway to LaGuardia flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Reagan-National flights
Midway to John F Kennedy Intl flights
O'Hare Intl to Dulles Intl flights
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Midway to Dulles Intl flights
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St. Louis to John F Kennedy Intl flights
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Midway to Reagan-National flights
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St. Louis to Reagan-National flights
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O'Hare Intl to Harrisburg flights
O'Hare Intl to State College flights
Moline to Newark flights
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Midway to Pittsburgh flights
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O'Hare Intl to Scranton flights
Peoria to Reagan-National flights
St. Louis to Pittsburgh flights
Peoria to Dulles Intl flights
Midway to Harrisburg flights
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St. Louis to Allentown flights
St. Louis to Harrisburg flights
Bloomington to John F Kennedy Intl flights
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Midway to Allentown flights
Evansville to John F Kennedy Intl flights
Evansville to Newark flights
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Peoria to Newark flights
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Peoria to Pittsburgh flights
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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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$139FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$63Average$326FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$477FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$142Average$330FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$151Average$285FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$167Average$294FlexibilityNo cancel feeOn-time63%

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