$70 Cheap United flights Philadelphia (PHL) to Chicago (ORD)

Scoring cheap one-way United Airlines flights from PHL to ORD from $70 on Expedia is a cinch — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $139 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

United Airlines flights to Chicago are often cheaper in the low-season months of January and February. Whether you’re searching for a return or one-way ticket, you could score a better deal then.

Start searching one to three months ahead of your travel date to get cheaper fares on United Airlines flights from Philadelphia Intl. Airport (PHL) to O’Hare Intl. Airport (ORD). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

United Airlines operates direct flights from Philadelphia Intl. Airport (PHL) to O’Hare Intl. Airport (ORD), with 27 departures every week. Just apply the “Nonstop” and “Airline” filters during your search on Expedia to show all direct United Airlines flights to ORD.

It takes approximately 2h 31m to travel nonstop from Philadelphia Intl. Airport (PHL) to O’Hare Intl. Airport (ORD) with United Airlines.

If you’re looking for flexibility, Wednesday offers the most choice for United Airlines flights from Philadelphia Intl. Airport (PHL) to O’Hare Intl. Airport (ORD). You can pick from 4 different departures.

The earliest United Airlines flight from PHL to ORD takes off at 6:00AM UTC-5, touching down at 7:31AM UTC-6. If you want to jet off later, the last United Airlines flight leaves PHL at 5:10PM UTC-5 and touches down at ORD at 6:41PM UTC-6. Flying before noon is often a smart option as morning and mid-morning flights are least likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from Philadelphia Intl. Airport (PHL) to Chicago arrive at O’Hare Intl. Airport (ORD) and Midway Intl. Airport (MDW). The primary Chicago gateway served by this airline is ORD. It’s worth checking out flights arriving at nearby airports on Expedia as you may find lower fares.

Offering a rewarding loyalty program, United Airlines is a top choice for many passengers heading from PHL to ORD. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the Philadelphia Intl. Airport (PHL) to O’Hare Intl. Airport (ORD) route, United Airlines typically uses Boeing 737-900 and Airbus A319 planes. Remember that last-minute changes can occur for operational demands, so your flight may be on another aircraft.

It’s usually possible to change or cancel your flight, although additional charges may apply if you made your booking more than 24 hours ago. Want to keep your options open? Make use of our “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you need to revise your plans. To update your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more information.