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$84+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PHL
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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”

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3. Compare prices and book

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Cheapflights Tip: The best prices from Chicago to Philadelphia are usually found in August or September, booked 66 days in advance, depart on a Thursday or Friday and return on a Thursday

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 April 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$161
(Cheapflightsfares)

One-way from

$85
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$268

Good round-trip deal

$190 or less

Good one-way deal

$98 or less
Provider with most accurate pricing for Chicago (CHI)-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Philadelphia flights.
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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. 31% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/208:17 pmORD - PHL
Nonstop2h 27mFrontier
Sun 6/225:45 amPHL - ORD
Nonstop2h 32mFrontier
Deal found 4/28$161
This SmartFares deal was found by Cheapflights users on 4/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/68:52 pmMDW - PHL
Nonstop2h 04mFrontier
Mon 6/96:35 pmPHL - MDW
Nonstop2h 17mFrontier
Deal found 4/27$165
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:45 amORD - PHL
1 stop7h 02mMultiple Airlines
Sun 5/47:15 amPHL - ORD
Nonstop2h 28mMultiple Airlines
Deal found 4/27$167
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/246:20 pmMDW - PHL
Nonstop1h 55mSouthwest
Wed 5/2812:15 pmPHL - MDW
Nonstop2h 05mSouthwest
Deal found 4/28$169
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/207:00 pmORD - PHL
Nonstop2h 07mAmerican Airlines
Sun 5/2512:23 pmPHL - ORD
Nonstop2h 29mAmerican Airlines
Deal found 4/28$180
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/197:47 amORD - PHL
1 stop23h 01mSpirit Airlines
Tue 5/275:45 amPHL - ORD
1 stop28h 05mSpirit Airlines
Deal found 4/27$188
This JetBlue deal was found by Cheapflights users on 4/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:40 amORD - PHL
1 stop9h 02mJetBlue
Tue 9/3010:20 amPHL - ORD
1 stop8h 15mJetBlue
Deal found 4/27$201
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 5/205:30 amORD - PHL
1 stop5h 40mDelta
Sun 5/255:30 amPHL - ORD
1 stop5h 33mDelta
Deal found 4/28$208
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/229:16 amMDW - PHL
1 stop5h 33mDelta
Sun 5/255:30 amPHL - MDW
1 stop5h 10mDelta
Deal found 4/28$227
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:45 amORD - PHL
Nonstop2h 08mUnited Airlines
Fri 5/306:35 pmPHL - ORD
Nonstop2h 25mUnited Airlines
Deal found 4/27$233
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/64:00 pmORD - PHL
1 stop6h 30mSouthwest
Mon 6/95:30 amPHL - ORD
2 stops10h 30mSouthwest
Deal found 4/28$262
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/28:04 pmMDW - PHL
2 stops25h 39mMultiple Airlines
Fri 6/65:45 amPHL - MDW
2 stops15h 01mMultiple Airlines
Deal found 4/27$354

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 April 29, 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

Fri 6/20

8:17 pm-11:44 pm

Nonstop2h 27m

Philadelphia

Sun 6/22

5:45 am-7:17 am

Nonstop2h 32m

$161

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Fri 6/6

8:52 pm-11:56 pm

Nonstop2h 04m

Philadelphia

Mon 6/9

6:35 pm-7:52 pm

Nonstop2h 17m

$165

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 5/3

11:45 am-7:47 pm

1 stop7h 02m

Philadelphia

Sun 5/4

7:15 am-8:43 am

Nonstop2h 28m

$167

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Sat 5/24

6:20 pm-9:15 pm

Nonstop1h 55m

Philadelphia

Wed 5/28

12:15 pm-1:20 pm

Nonstop2h 05m

$169

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 5/20

9:45 am-12:42 pm

Nonstop1h 57m

Philadelphia

Sun 5/25

1:37 pm-3:03 pm

Nonstop2h 26m

$180

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Mon 5/19

7:47 am-7:48 am

1 stop23h 01m

Philadelphia

Tue 5/27

5:45 am-8:50 am

1 stop28h 05m

$188

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 5/20

5:30 am-12:10 pm

1 stop5h 40m

Philadelphia

Sun 5/25

5:30 am-10:03 am

1 stop5h 33m

$208

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Thu 5/22

9:16 am-3:49 pm

1 stop5h 33m

Philadelphia

Sun 5/25

5:30 am-9:40 am

1 stop5h 10m

$227

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 5/14

8:45 am-11:53 am

Nonstop2h 08m

Philadelphia

Fri 5/30

6:35 pm-8:00 pm

Nonstop2h 25m

$233

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 6/6

4:00 pm-11:30 pm

1 stop6h 30m

Philadelphia

Mon 6/9

5:30 am-3:00 pm

2 stops10h 30m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 24 results
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust 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 CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago-Philadelphia flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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.

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

Avoid long walks at ORD by using the free shuttle train between terminals, especially if you're connecting flights.

Read more about ORDby Ramsey Qubein
MDW

Use the airport’s mobile system to order food directly to your gate, saving time and ensuring you don't miss boarding.

Read more about MDWby Ramsey Qubein
PHL

For quick access to downtown, use the SEPTA Airport Line from PHL, with stations at Terminals A, B, C/D, and E/F.

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 April 25, 2025.

Booking 66 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 April 29, 2025.

It’s typically best to fly out from Chicago to Philadelphia in the evening. Doing so could potentially save you 42% on the flight price compared to flying in the afternoon, 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 March 30, 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 April 29, 2025.

The most flights from CHI to PHL are scheduled on a Monday (49 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (37 on average).

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 April 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Chicago to Philadelphia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,949 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,949 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 41 flights from Chicago to Philadelphia per day from 5 different airlines.

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

    According to our current data, Frontier ($161), Southwest ($169), and American Airlines ($180) offers the cheapest pricing from Chicago to Philadelphia. You may be able to fly from Chicago to Philadelphia for 26% 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 $85. Users have also found prices from $89 and $89 on Southwest and American 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: Qatar Airways (86%), Alaska Airlines (82%), Air Canada (81%).

  • What are the cheapest flights from Chicago to Philadelphia?

    The cheapest flight price from Chicago to Philadelphia is $80. On average you can expect to pay $548. The most popular route, (Chicago O'Hare Intl - Philadelphia), can usually be booked for $171.

  • 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Vineland
Pottstown
Wildwood
King of Prussia
Reading
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Exton
Ocean City
Essington
Chester
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Willow Grove
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West Chester
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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 LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Newark flights
Midway to John F Kennedy Intl flights
Midway to Newark flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Reagan-National flights
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Midway to Pittsburgh flights
Peoria to Newark flights
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Moline to LaGuardia flights
St. Louis to Pittsburgh flights
Peoria to Reagan-National flights
Peoria to Dulles Intl flights
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Moline to Dulles Intl flights
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Midway to Harrisburg flights
St. Louis to Harrisburg flights
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Top 5 airlines flying from Chicago to Philadelphia

Discover the top 5 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$108FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$63Average$333FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$137Average$299FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$145Average$269FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$162Average$288FlexibilityNo cancel feeOn-time63%

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