Cheap Flights from Philadelphia to Knoxville from $85

Frequently Asked Questions

• What are the cheapest flights from Philadelphia to Knoxville (PHL-TYS)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $85 on Cheapest nonstop routes (e.g. PHL to TYS on Tue, Apr 28), while United Airlines offers Cheapest nonstop round-trips from $363 departing on Sat, Apr 18 and returning on Sat, Apr 25.

• Which airlines offer direct flights from Philadelphia to Knoxville?

  At the moment, you can catch a nonstop flight from Philadelphia to Knoxville with the following airlines, including: Frontier 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 Philadelphia (PHL) to Knoxville (TYS) and what is the distance?

  It takes around 2 hours 10 minutes to fly from Philadelphia (PHL) to Knoxville (TYS).

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

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Philadelphia to Knoxville 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 Philadelphia to Knoxville?

  Based on Trip.com data in the past 4 weeks, there is 18 flight per week flying from Philadelphia to Knoxville. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA6073 (13:19) American Airlines: S/M/T/W/T/F/S -- AA5883 (11:19)

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

  To find best deals on flights from Philadelphia to Knoxville, 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 Tue, Apr 28, with one-way flights priced at just $85.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American 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 Knoxville travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Philadelphia (PHL) to Knoxville (TYS) the cheapest?

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

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

  After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Philadelphia to Knoxville on April 14, 2026 with United Airlines, with prices starting at $327.

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

  You can land at any one of the following hubs in Knoxville, with Philadelphia International Airport to Mcghee Tyson Airport (PHL-TYS) is by far the most common option on this route: Mcghee Tyson Airport (TYS).

• Is there any time difference between Philadelphia and Knoxville?

  The time difference between Knoxville and Philadelphia is 0h.

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

  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.