Frontier offers extra comfort seats with 32” separation for a fee, enhancing short-haul comfort.
Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.
$77+ Cheap flights from O'Hare Intl (ORD) 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHL
Jul 23 — Jul 301
1 adult, Economy
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Find cheap flights from O'Hare Intl 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
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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 O'Hare Intl to Philadelphia are usually found in September or October, booked 76 days in advance, depart on a Thursday or Friday and return on a Friday
Cheap flight deals from O'Hare Intl to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 18, 2025.
Round-trip from | $149 (Kiwi.com) |
|---|---|
One-way from | $77 (Kiwi.com) |
Popular in | February |
Cheapest in | September |
Average price | $228 |
Good round-trip deal | $196 or less |
Good one-way deal | $117 or less |
Find flight deals from O'Hare Intl to Philadelphia
Cheapest flights from O'Hare Intl to PhiladelphiaExplore the most affordable flight options available from O'Hare Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.
Explore the most affordable flight options available from O'Hare Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Fri 8/18:27 pmORD - PHL
Nonstop2h 26mFrontier
Sun 8/38:39 pmPHL - ORD
Nonstop2h 36mFrontier
Deal found 7/17![Frontier logo]()
$149
This American Airlines deal was found by Cheapflights users on 7/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1910:20 amORD - PHL
Nonstop2h 04mAmerican Airlines
Tue 8/263:50 pmPHL - ORD
Nonstop2h 30mAmerican Airlines
Deal found 7/16![American Airlines logo]()
$151
This Cheapflightsfares deal was found by Cheapflights users on 7/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/285:05 amORD - PHL
1 stop10h 11mSpirit Airlines
Thu 7/315:21 pmPHL - ORD
1 stop7h 32mSpirit Airlines
Deal found 7/16![Spirit Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2311:05 amORD - PHL
Nonstop2h 12mUnited Airlines
Tue 8/2610:30 amPHL - ORD
1 stop4h 59mUnited Airlines
Deal found 7/17![United Airlines logo]()
$164
This CheapOair deal was found by Cheapflights users on 7/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/15:05 amORD - PHL
1 stop10h 11mMultiple Airlines
Fri 8/155:48 pmPHL - ORD
Nonstop2h 39mMultiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 7/17. 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.
Tue 9/26:00 amORD - PHL
1 stop7h 30mSouthwest
Tue 9/308:15 amPHL - ORD
2 stops14h 15mSouthwest
Deal found 7/17![Southwest logo]()
$188
This Delta deal was found by Cheapflights users on 7/17. 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.
Sat 8/306:00 pmORD - PHL
1 stop5h 56mDelta
Mon 9/15:25 amPHL - ORD
1 stop5h 39mDelta
Deal found 7/17![Delta logo]()
$197
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 18, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Philadelphia that are best for you.
Fly from
O'Hare Intl
Fly to
Philadelphia
Route
Depart
Return
Price
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Fri 8/1
8:27 pm-11:53 pm
Nonstop2h 26m
Philadelphia
Sun 8/3
8:39 pm-10:15 pm
Nonstop2h 36m
$149
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Tue 8/19
10:20 am-1:24 pm
Nonstop2h 04m
Philadelphia
Tue 8/26
3:50 pm-5:20 pm
Nonstop2h 30m
$151
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Wed 8/20
6:56 am-2:38 pm
1 stop6h 42m
Philadelphia
Mon 8/25
10:47 am-12:20 pm
Nonstop2h 33m
$156
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Mon 7/28
5:05 am-4:16 pm
1 stop10h 11m
Philadelphia
Thu 7/31
5:21 pm-11:53 pm
1 stop7h 32m
$162
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Sat 8/23
11:05 am-2:17 pm
Nonstop2h 12m
Philadelphia
Tue 8/26
10:30 am-2:29 pm
1 stop4h 59m
$164
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Tue 9/2
6:00 am-2:30 pm
1 stop7h 30m
Philadelphia
Tue 9/30
8:15 am-9:30 pm
2 stops14h 15m
$188
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Sat 8/30
6:00 pm-12:56 am
1 stop5h 56m
Philadelphia
Mon 9/1
5:25 am-10:04 am
1 stop5h 39m
$197
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Thu 8/14
5:00 pm-8:24 pm
Nonstop2h 24m
$77
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Thu 8/7
9:23 pm-12:30 am
Nonstop2h 07m
$79
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Wed 8/6
5:05 am-4:16 pm
1 stop10h 11m
$80
Showing 1-10 of 14 results
The best insider tips for Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Philadelphia trip
Airlines
![Frontier]()
Frontier
![United Airlines]()
United Airlines
United's Economy Plus offers extra legroom, ideal for a comfortable short-haul flight.
United's MileagePlus program allows pooling miles, useful for frequent ORD-PHL travelers.
Airports
Our travel experts
Best time to book a flight from O'Hare Intl to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from O'Hare Intl 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 O'Hare Intl Airport to Philadelphia
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Philadelphia?
Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Philadelphia. Price data was last updated on July 11, 2025.
To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Philadelphia, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Philadelphia?
Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Philadelphia (average of $236). Flying from Chicago O'Hare Intl Airport 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 ORD to PHL?
Find hourly flight availability from O'Hare Intl 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 18, 2025.
One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 57% on airfare.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to Philadelphia?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Philadelphia. Price data was last updated on July 13, 2025.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Philadelphia flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago O'Hare Intl Airport to Philadelphia
Explore weekly flight availability from O'Hare Intl 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 18, 2025.
The most flights from ORD to PHL are scheduled on a Thursday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Chicago O'Hare Intl Airport 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 18, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Chicago O'Hare Intl Airport to Philadelphia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.6
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsVineland
Wildwood
King of Prussia
Cherry Hill
Pottstown
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Exton
Dover
Elkton
Essington
Willow Grove
Newark
Glen Mills
Springfield
Plymouth Meeting
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for O'Hare Intl to Philadelphia
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from O'Hare Intl to Philadelphia
Discover the top 5 airlines that operate flights from O'Hare Intl 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 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$125 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$63 | Average$333 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$108 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$140 | Average$326 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$151 | Average$286 | FlexibilityNo cancel fee | On-time71% |