Cheap Flights from Chicago to Philadelphia from $30

Frequently Asked Questions

• What are the cheapest flights from Chicago to Philadelphia (CHI-PHL)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $30 on Cheapest nonstop routes (e.g. ORD to PHL on Fri, Jan 23), while Frontier Airlines offers Cheapest nonstop round-trips from $60 departing on Fri, Jan 16 and returning on Sun, Jan 18.

• Which airlines offer direct flights from Chicago to Philadelphia?

  At the moment, you can catch a nonstop flight from Chicago to Philadelphia with the following airlines, including: Frontier Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Chicago (CHI) to Philadelphia (PHL) and what is the distance?

  It takes around 1 hour 59 minutes to fly from Chicago (CHI) to Philadelphia (PHL).

• When is the best time to book flights from Chicago to Philadelphia?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Philadelphia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Chicago to Philadelphia?

  Based on Trip.com data in the past 4 weeks, there is 66 flight per week flying from Chicago to Philadelphia. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA2974 (08:16)

• How can I find the best deals on flights from Chicago to Philadelphia?

  To find best deals on flights from Chicago to Philadelphia, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Jan 23, with one-way flights priced at just $30.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Philadelphia travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Chicago (CHI) to Philadelphia (PHL) the cheapest?

  The cheapest months to fly from Chicago to Philadelphia is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chicago to Philadelphia on?

  After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Chicago to Philadelphia on January 16, 2026 with Frontier Airlines, with prices starting at $29.

• Which airports can I fly to for Philadelphia from Chicago?

  You can land at any one of the following hubs in Philadelphia, with O'Hare International Airport to Philadelphia International Airport (ORD-PHL) is by far the most common option on this route: Philadelphia International Airport (PHL) Trenton Mercer Airport (TTN).

• Is there any time difference between Chicago and Philadelphia?

  The time difference between Philadelphia and Chicago is 1h.

• How do I change or cancel my ticket from Chicago to Philadelphia?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.