$115 Cheap Flights from Philadelphia (PHL) to Knoxville (TYS)

View $115 flight on Sun, Jun 1, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)

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Find available prices by choosing your travel dates.

Cheap Flights from Philadelphia to Knoxville (PHL-TYS)

Prices were available within the past 7 days and start at $115 for one-way flights and $230 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jun 5 - Sun, Jun 8
PHL
Philadelphia
TYS
Knoxville
$230 Roundtrip, found 6 hours ago
$230
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Philadelphia to Knoxville, returning Sun, Jun 8, priced at $230 found 6 hours ago
Frontier Airlines
Thu, May 22 - Thu, Jun 5
PHL
Philadelphia
TYS
Knoxville
$260 Roundtrip, found 8 hours ago
$260
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, May 22 from Philadelphia to Knoxville, returning Thu, Jun 5, priced at $260 found 8 hours ago
American Airlines
Tue, May 27 - Thu, May 29
PHL
Philadelphia
TYS
Knoxville
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 27 from Philadelphia to Knoxville, returning Thu, May 29, priced at $299 found 1 day ago
Frontier Airlines
Wed, Jun 11 - Sun, Jun 15
PHL
Philadelphia
TYS
Knoxville
$301 Roundtrip, found 3 hours ago
$301
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Wed, Jun 11 from Philadelphia to Knoxville, returning Sun, Jun 15, priced at $301 found 3 hours ago
American Airlines
Tue, May 27 - Thu, May 29
PHL
Philadelphia
TYS
Knoxville
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 27 from Philadelphia to Knoxville, returning Thu, May 29, priced at $308 found 1 day ago
Frontier Airlines
Sun, May 25 - Wed, May 28
PHL
Philadelphia
TYS
Knoxville
$311 Roundtrip, found 4 days ago
$311
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, May 25 from Philadelphia to Knoxville, returning Wed, May 28, priced at $311 found 4 days ago
Frontier Airlines
Thu, Jun 12 - Tue, Jun 17
PHL
Philadelphia
TYS
Knoxville
$314 Roundtrip, found 15 hours ago
$314
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Thu, Jun 12 from Philadelphia to Knoxville, returning Tue, Jun 17, priced at $314 found 15 hours ago
Frontier Airlines
Thu, Jul 31 - Thu, Aug 7
PHL
Philadelphia
TYS
Knoxville
$322 Roundtrip, found 5 hours ago
$322
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Philadelphia to Knoxville, returning Thu, Aug 7, priced at $322 found 5 hours ago
Delta
Tue, May 27 - Thu, May 29
PHL
Philadelphia
TYS
Knoxville
$343 Roundtrip, found 1 day ago
$343
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 27 from Philadelphia to Knoxville, returning Thu, May 29, priced at $343 found 1 day ago
United
Sat, Jul 19 - Sat, Jul 26
PHL
Philadelphia
TYS
Knoxville
$375 Roundtrip, found 1 hour ago
$375
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Jul 19 from Philadelphia to Knoxville, returning Sat, Jul 26, priced at $375 found 1 hour ago
Flights from Philadelphia (PHL) to Knoxville (TYS)
Origin airport
Philadelphia Intl.
Destination airport
McGhee Tyson
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$230
Distance
553 mi

Philadelphia to Knoxville Flights

The cheapest times to fly from Philadelphia to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Knoxville are during the month of June. You can find some of the cheapest flights from Philadelphia to Knoxville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Philadelphia to Knoxville

Sunday is one of the best days to book for cheap flights from Philadelphia to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Philadelphia to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $115 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS) cost?
Book cheap return flights starting from $355 from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving PHL on May 21 2025 and touching down at TYS. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from PHL to TYS?
The cheapest flights from PHL to TYS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
You can fly straight from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS) on an American Airlines flight.
What is the cheapest airline that flies from PHL to TYS?
At the moment, the cheapest airline operating one-way flights from PHL to TYS is American Airlines. You can book a seat on this route from $219. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHL on May 22 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
With, on average, 2 nonstop flights departing from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS) daily, you’ll be on your way in no time.
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
The 8 AM departures from PHL to TYS are the busiest. They can also be more expensive. If you’re looking to save, choose a less crowded time to fly.
What day of the week has the most flights from PHL to TYS?
Friday offers the most flights from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS). Consider jetting off on this day and you’ll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
The first flight of the day out of Philadelphia Intl. Airport (PHL) is at around 8:20AM UTC-5. Hop on this flight and you’ll arrive at McGhee Tyson Airport (TYS) at approximately 10:37AM UTC-5. The total travel time is 2h 17m.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
The average flight duration from PHL to TYS is 2 hours and 12 minutes, covering a distance of 550 mi.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
To touch down at McGhee Tyson Airport (TYS) on time, select a flight that takes off from Philadelphia Intl. Airport (PHL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Knoxville from Philadelphia Intl. Airport (PHL)?
If you’ve booked a direct flight from Philadelphia Intl. Airport (PHL) to Knoxville, McGhee Tyson Airport (TYS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS) last-minute?
Last-minute fares from PHL to TYS are typically more expensive. To lock in the lowest rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, it’s possible to score a cheap ticket right before your trip.
Is it cheaper to book a PHL to TYS flight and hotel package?
You’ll typically save money by securing a PHL to TYS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. After selecting your preferred accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to McGhee Tyson Airport (TYS)?
In most instances, you can modify or cancel your PHL to TYS flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you’d like further information, head to our Customer Service portal.

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*Available to One Key members.