HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$39+ Cheap flights from Illinois 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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
nov. 25 — dic. 21
lun. 11/25
lun. 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois 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.

Cheap flight deals from Illinois to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 noviembre 20, 2024.

Find flight deals from Illinois to Philadelphia

Cheapest flights from Illinois to Philadelphia
Explore the most affordable flight options available from Illinois to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 20, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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.
jue. 12/1212:36 pmMDW - PHL
Nonstop2h 06mFrontier
dom. 12/154:50 pmPHL - MDW
Nonstop2h 22mFrontier
Deal found 11/19$76
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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.
lun. 12/94:58 pmORD - PHL
Nonstop2h 07mFrontier
lun. 12/169:10 pmPHL - ORD
Nonstop2h 28mFrontier
Deal found 11/19$76
This Frontier deal was found by Cheapflights users on 11/18. 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.
mié. 12/183:53 pmSTL - PHL
1 stop8h 29mFrontier
jue. 12/1911:52 amPHL - STL
1 stop8h 28mFrontier
Deal found 11/18$128
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
lun. 12/94:58 pmORD - PHL
Nonstop2h 07mMultiple Airlines
mar. 12/107:16 amPHL - ORD
1 stop13h 59mMultiple Airlines
Deal found 11/20$136
This American Airlines deal was found by Cheapflights users on 11/20. 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.
sáb. 12/146:31 amORD - PHL
Nonstop2h 01mAmerican Airlines
sáb. 1/119:15 amPHL - ORD
Nonstop2h 29mAmerican Airlines
Deal found 11/20$154
This Southwest deal was found by Cheapflights users on 11/19. 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.
mié. 12/118:30 amMDW - PHL
Nonstop1h 55mSouthwest
mar. 12/176:40 pmPHL - MDW
Nonstop2h 10mSouthwest
Deal found 11/19$172
This United Airlines deal was found by Cheapflights users on 11/20. 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.
mar. 12/242:30 pmORD - PHL
Nonstop2h 06mUnited Airlines
mar. 12/316:35 amPHL - ORD
Nonstop2h 30mUnited Airlines
Deal found 11/20$177
This Priceline deal was found by Cheapflights users on 11/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/54:26 pmSTL - PHL
1 stop6h 40mMultiple Airlines
dom. 12/89:53 pmPHL - STL
1 stop11h 20mMultiple Airlines
Deal found 11/19$183
This Mytrip deal was found by Cheapflights users on 11/20. 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.
lun. 12/95:11 pmORD - PHL
2 stops13h 37mSpirit Airlines
mar. 12/107:27 pmPHL - ORD
2 stops21h 39mSpirit Airlines
Deal found 11/20$187
This Delta deal was found by Cheapflights users on 11/20. 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.
mié. 12/119:30 amMDW - PHL
1 stop6h 02mDelta
mar. 12/1712:37 pmPHL - MDW
1 stop5h 24mDelta
Deal found 11/20$196
This Delta deal was found by Cheapflights users on 11/19. 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.
mar. 12/310:15 amORD - PHL
1 stop5h 29mDelta
mar. 12/1012:37 pmPHL - ORD
1 stop6h 54mDelta
Deal found 11/19$196
This Mytrip deal was found by Cheapflights users on 11/19. 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.
mar. 12/35:21 pmSTL - PHL
2 stops15h 39mSpirit Airlines
mar. 12/106:15 amPHL - STL
1 stop10h 06mSpirit Airlines
Deal found 11/19$231

Find flights from Illinois to Philadelphia within your budget

Customize your flight search to find flights from Illinois 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 2,629,791 searches. Data last updated noviembre 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

jue. 12/12

12:36 pm-3:42 pm

Nonstop2h 06m

Philadelphia

dom. 12/15

4:50 pm-6:12 pm

Nonstop2h 22m

$76

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

lun. 12/9

4:58 pm-8:05 pm

Nonstop2h 07m

Philadelphia

lun. 12/16

9:10 pm-10:38 pm

Nonstop2h 28m

$76

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

mié. 12/18

3:53 pm-1:22 am

1 stop8h 29m

Philadelphia

jue. 12/19

11:52 am-7:20 pm

1 stop8h 28m

$128

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

lun. 12/9

4:58 pm-8:05 pm

Nonstop2h 07m

Philadelphia

mar. 12/10

7:16 am-8:15 pm

1 stop13h 59m

$136

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

mié. 1/8

11:53 am-2:54 pm

Nonstop2h 01m

Philadelphia

sáb. 1/11

9:15 am-10:44 am

Nonstop2h 29m

$137

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

vie. 1/17

8:35 am-11:30 am

Nonstop1h 55m

Philadelphia

mar. 1/21

6:20 pm-7:35 pm

Nonstop2h 15m

$158

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

mié. 12/11

11:20 am-2:20 pm

Nonstop2h 00m

Philadelphia

sáb. 12/14

5:15 pm-6:39 pm

Nonstop2h 24m

$171

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

mar. 12/3

11:51 am-1:17 am

1 stop12h 26m

Philadelphia

jue. 12/5

10:55 am-8:58 pm

1 stop11h 03m

$172

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

jue. 12/5

4:26 pm-12:06 am

1 stop6h 40m

Philadelphia

dom. 12/8

9:53 pm-8:13 am

1 stop11h 20m

$183

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

mié. 12/11

9:30 am-4:32 pm

1 stop6h 02m

Philadelphia

mar. 12/17

12:37 pm-5:01 pm

1 stop5h 24m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 50 results
1
2
3
...
5

Best time to book a flight from Illinois to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Illinois 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.

Travel insights for flights from Illinois to Philadelphia

Get recent, data-driven insights about flights from Illinois to Philadelphia including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Philadelphia (average of $234). Flying from Illinois to Philadelphia in March is currently the most expensive (average of $284). 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 IL to PHL?

Find hourly flight availability from Illinois 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 noviembre 20, 2024.

When flying from Illinois to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Philadelphia

Explore weekly flight availability from Illinois 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 noviembre 20, 2024.

The most flights from USIL to PHL are scheduled on a Wednesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 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 noviembre 20, 2024.
See what other customers who have flown with United Airlines, Frontier and American Airlines from Illinois to Philadelphia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,394 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from Illinois to Philadelphia. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $39. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Illinois to Philadelphia for a low price.

  • What are the most popular routes from Illinois to Philadelphia?

    Most travelers choose Chicago O'Hare Intl - Philadelphia, Chicago Midway - Philadelphia or Lambert-St Louis - Philadelphia when deciding on the best route from Illinois to Philadelphia.

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

    Consider Qatar Airways (86%), Royal Jordanian (86%) or Cathay Pacific (83%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Philadelphia.

  • What are the cheapest flights from Illinois to Philadelphia?

    Looking for the cheapest flight from Illinois to Philadelphia? While on average our users pay $738, our data indicates the cheapest price to be $39. The most popular route (Chicago O'Hare Intl - Philadelphia), is priced around $128.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Philadelphia?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Philadelphia (average of $234). Flying from Illinois to Philadelphia in March is currently the most expensive (average of $284). 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

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 Illinois to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to LaGuardia flights
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
San Francisco to John F Kennedy Intl flights
Miami to LaGuardia flights
Miami to John F Kennedy Intl flights
Fort Lauderdale to LaGuardia flights
Fort Lauderdale to Newark flights
Atlanta to John F Kennedy Intl flights
Miami to Newark flights
Los Angeles to LaGuardia flights
Fort Lauderdale to John F Kennedy Intl flights
Orlando to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
San Francisco to Newark flights
O'Hare Intl to LaGuardia flights
Hobby to LaGuardia flights
Hobby to Newark flights
Atlanta to LaGuardia flights
Seattle to Newark flights
Seattle to John F Kennedy Intl flights
Hobby to John F Kennedy Intl flights
O'Hare Intl to Newark flights
Atlanta to Newark flights
Denver to John F Kennedy Intl flights
Santa Ana to Newark flights
Denver to LaGuardia flights
Tampa to LaGuardia flights
Orlando to LaGuardia flights
San Francisco to LaGuardia flights
Orlando to Newark flights
Tampa to Newark flights
Raleigh to John F Kennedy Intl flights
Austin to John F Kennedy Intl flights
George Bush Intcntl to John F Kennedy Intl flights
Raleigh to Newark flights
Los Angeles to Reagan-National flights
George Bush Intcntl to LaGuardia flights
George Bush Intcntl to Newark flights
Charlotte to John F Kennedy Intl flights
Los Angeles to Dulles Intl flights
Detroit to Newark flights
Detroit to John F Kennedy Intl flights
Raleigh to LaGuardia flights
Dallas/Fort Worth to Dulles Intl flights
Charlotte to Newark flights
San Diego to John F Kennedy Intl flights
Minneapolis to Newark flights

Top 6 airlines flying from Illinois to Philadelphia

Discover the top 6 airlines that operate flights from Illinois 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 2,629,791 searches. Data last updated noviembre 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$50Average$108FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$74Average$129FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$138Average$410FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$138Average$262FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$138Average$474FlexibilityNo cancel feeOn-time71%
DeltaCheapest$182Average$276FlexibilityNo cancel feeOn-timeN/A
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.
View all available airlines