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$48+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Round-trip from

$98
(iWofly)

One-way from

$48
(Frontier)
From Illinois to Philadelphia
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One-way flight from Illinois to Philadelphia
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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 December 18, 2024.

This Frontier deal was found by Cheapflights users on 12/17. 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.
Tue 12/312:20 pmMDW - PHL
1 stop7h 45mFrontier
Mon 1/612:41 pmPHL - MDW
1 stop11h 33mFrontier
Deal found 12/17$148
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Wed 12/2510:22 pmORD - PHL
Nonstop2h 07mFrontier
Tue 12/315:15 amPHL - ORD
1 stop19h 42mFrontier
Deal found 12/17$164
This Delta deal was found by Cheapflights users on 12/17. 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 12/314:50 pmMDW - PHL
1 stop5h 39mDelta
Tue 1/75:40 amPHL - MDW
1 stop5h 32mDelta
Deal found 12/17$220
This Delta deal was found by Cheapflights users on 12/17. 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 12/315:30 pmORD - PHL
1 stop4h 44mDelta
Wed 1/16:00 amPHL - ORD
1 stop4h 21mDelta
Deal found 12/17$240
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/193:53 pmSTL - PHL
1 stop28h 46mFrontier
Mon 1/67:30 amPHL - STL
1 stop13h 59mFrontier
Deal found 12/18$278
This Mytrip deal was found by Cheapflights users on 12/17. 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 12/3012:40 pmORD - PHL
2 stops30h 35mMultiple Airlines
Tue 1/72:45 pmPHL - ORD
2 stops10h 48mMultiple Airlines
Deal found 12/17$286
This Priceline deal was found by Cheapflights users on 12/16. 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.
Tue 12/314:27 pmSTL - PHL
1 stop6h 38mMultiple Airlines
Thu 1/211:52 amPHL - STL
1 stop8h 28mMultiple Airlines
Deal found 12/16$297
This Delta deal was found by Cheapflights users on 12/17. 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 12/314:59 pmMLI - PHL
1 stop6h 53mDelta
Fri 1/35:50 pmPHL - MLI
1 stop5h 34mDelta
Deal found 12/17$308
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/244:55 pmORD - PHL
Nonstop2h 01mAmerican Airlines
Tue 12/319:24 amPHL - ORD
Nonstop2h 29mAmerican Airlines
Deal found 12/17$315
This Southwest deal was found by Cheapflights users on 12/17. 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 12/252:10 pmMDW - PHL
Nonstop1h 55mSouthwest
Tue 12/313:55 pmPHL - MDW
Nonstop2h 10mSouthwest
Deal found 12/17$316
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Thu 12/196:05 amORD - PHL
2 stops24h 28mSpirit Airlines
Sat 1/256:00 amPHL - ORD
1 stop7h 29mSpirit Airlines
Deal found 12/17$330
This Southwest deal was found by Cheapflights users on 12/17. 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 12/2511:25 amORD - PHL
1 stop9h 20mSouthwest
Tue 12/314:50 pmPHL - ORD
1 stop6h 10mSouthwest
Deal found 12/17$334

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Mon 1/6

9:59 pm-12:58 am

Nonstop1h 59m

Philadelphia

Sat 1/11

6:03 pm-11:29 pm

1 stop6h 26m

$98

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/9

10:35 am-7:02 pm

1 stop7h 27m

Philadelphia

Sat 1/11

10:15 pm-9:54 am

1 stop12h 39m

$108

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sat 1/25

5:05 pm-7:59 am

1 stop13h 54m

Philadelphia

Mon 1/27

10:18 pm-11:31 pm

1 stop26h 13m

$118

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/9

10:35 am-7:02 pm

1 stop7h 27m

Philadelphia

Wed 1/15

6:00 am-12:29 pm

1 stop7h 29m

$126

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Wed 1/15

6:52 pm-10:28 pm

1 stop26h 36m

Philadelphia

Wed 1/22

6:39 am-6:26 pm

2 stops36h 47m

$154

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 1/14

2:02 pm-10:16 pm

1 stop7h 14m

Philadelphia

Wed 1/15

6:00 am-12:29 pm

1 stop7h 29m

$156

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 6/6

8:40 am-3:01 pm

1 stop5h 21m

Philadelphia

Sun 6/8

10:10 am-5:20 pm

1 stop8h 10m

$180

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 1/14

2:29 pm-5:35 pm

Nonstop2h 06m

Philadelphia

Tue 1/21

10:10 am-11:41 am

Nonstop2h 31m

$181

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Tue 1/7

6:00 am-12:04 pm

1 stop5h 04m

Philadelphia

Tue 1/14

6:00 am-8:54 am

1 stop3h 54m

$200

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 1/7

5:45 am-12:04 pm

1 stop5h 19m

Philadelphia

Wed 1/15

9:33 am-12:55 pm

1 stop4h 22m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 51 results
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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 $283). 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 December 18, 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.

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 December 18, 2024.
See what other customers who have flown with Frontier, Spirit Airlines 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
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,279 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $48. However, be on the lookout for offers from Spirit Airlines and JetBlue, 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 Frontier (93%), United Airlines (86%) or Air Canada (86%) 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 $889, our data indicates the cheapest price to be $44. The most popular route (Chicago O'Hare Intl - Philadelphia), is priced around $140.

  • 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 $283). 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.

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Alternative routes for Illinois to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Philadelphia

Discover the top 5 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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$50Average$111FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$138Average$473FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$159Average$281FlexibilityNo cancel feeOn-time63%
DeltaCheapest$176Average$305FlexibilityNo cancel feeOn-timeN/A
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