$56 Cheap Flights from Knoxville (TYS) to Philadelphia (PHL)

View $56 flight on Thu, Nov 13, 2025Opens in a new window

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

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Cheap Flights from Knoxville to Philadelphia (TYS-PHL)

Prices were available within the past 7 days and start at $56 for one-way flights and $173 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Dec 8 - Sun, Dec 14
TYS
Knoxville
PHL
Philadelphia
$173 Roundtrip, found 2 hours ago
$173
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Knoxville to Philadelphia, returning Sun, Dec 14, priced at $173 found 2 hours ago
Frontier Airlines
Sun, Dec 7 - Sun, Dec 14
TYS
Knoxville
PHL
Philadelphia
$186 Roundtrip, found 2 hours ago
$186
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sun, Dec 7 from Knoxville to Philadelphia, returning Sun, Dec 14, priced at $186 found 2 hours ago
Frontier Airlines
Thu, Oct 30 - Thu, Nov 13
TYS
Knoxville
PHL
Philadelphia
$199 Roundtrip, found 1 hour ago
$199
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Knoxville to Philadelphia, returning Thu, Nov 13, priced at $199 found 1 hour ago
Frontier Airlines
Thu, Nov 13 - Sat, Nov 22
TYS
Knoxville
PHL
Philadelphia
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Knoxville to Philadelphia, returning Sat, Nov 22, priced at $200 found 1 day ago
Frontier Airlines
Sun, Nov 16 - Sun, Dec 7
TYS
Knoxville
PHL
Philadelphia
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Knoxville to Philadelphia, returning Sun, Dec 7, priced at $206 found 1 day ago
Frontier Airlines
Mon, Dec 15 - Tue, Dec 30
TYS
Knoxville
PHL
Philadelphia
$218 Roundtrip, found 4 days ago
$218
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Dec 15 from Knoxville to Philadelphia, returning Tue, Dec 30, priced at $218 found 4 days ago
Southwest Airlines
Thu, May 14 - Tue, May 19
TYS
Knoxville
PHL
Philadelphia
$337 Roundtrip, found 2 hours ago
$337
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, May 14 from Knoxville to Philadelphia, returning Tue, May 19, priced at $337 found 2 hours ago
American Airlines
Thu, Dec 11 - Sun, Jan 18
TYS
Knoxville
PHL
Philadelphia
$342 Roundtrip, found 5 days ago
$342
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 11 from Knoxville to Philadelphia, returning Sun, Jan 18, priced at $342 found 5 days ago
Delta
Wed, Jan 21 - Tue, Jan 27
TYS
Knoxville
PHL
Philadelphia
$375 Roundtrip, just found
$375
Roundtrip
just found
Select Delta flight, departing Wed, Jan 21 from Knoxville to Philadelphia, returning Tue, Jan 27, priced at $375 just found
United
Wed, Mar 11 - Wed, Mar 18
TYS
Knoxville
PHL
Philadelphia
$375 Roundtrip, found 17 hours ago
$375
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Mar 11 from Knoxville to Philadelphia, returning Wed, Mar 18, priced at $375 found 17 hours ago

Find the cheapest month to fly from Knoxville (TYS) to Philadelphia (PHL)

November is typically the cheapest month to fly

From $221 - $644 per traveler.

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to New Castle ILG. Cheapest option available. Average driving time to city center is 44 minutes. Flights from $499
ILG
New Castle
Cheapest
Average driving time to city center44 min
Flights from $499
Flights from Knoxville (TYS) to Philadelphia (PHL)
Origin airport
McGhee Tyson
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$173
Distance
553 mi
Average flight time
1 hour 58 mins

Knoxville to Philadelphia Flights

The cheapest times to fly from Knoxville to Philadelphia

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 Knoxville to Philadelphia are during the month of December. You can find some of the cheapest flights from Knoxville to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Knoxville to Philadelphia

Sunday is one of the best days to book for cheap flights from Knoxville to Philadelphia: 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 Knoxville to Philadelphia

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 Knoxville to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $56 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 Knoxville to Philadelphia 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 Knoxville to Philadelphia 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 McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL) cost?
Lock in a cheap one-way flight from $56 or cheap return flight from $173 from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from TYS to PHL is December, when there's less demand. Off-peak season is usually when airlines offer lower prices between these airports.
Which airlines fly direct from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
When departing from McGhee Tyson Airport (TYS), you can hop on a direct flight to Philadelphia Intl. Airport (PHL) with American Airlines.
What is the cheapest airline that flies from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest TYS to PHL flight.
How many flights per day from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
With an average of 2 direct flights departing from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL) daily, you'll be up in the air in no time.
What are the most popular departure times for flights from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
More travelers fly between TYS and PHL at 7 AM than at any other point in the day. Looking to skip the crowds? Travel outside of rush hours and you're likely to save on your ticket as well.
What day of the week has the most flights from TYS to PHL?
Fly on a Friday if you're looking for the best selection of flights from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL).
What is the earliest flight from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
The earliest flight out of McGhee Tyson Airport (TYS) is at around 7:56AM UTC-5. Board this plane and you'll touch down at Philadelphia Intl. Airport (PHL) at approximately 9:50AM UTC-5. The overall travel time is 1h 54m.
How long does it take to fly from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
It usually takes 1 hour and 52 minutes to travel the 550 mi from TYS to PHL.
What is the best time to fly from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
To touch down at Philadelphia Intl. Airport (PHL) on time, choose a flight that leaves from McGhee Tyson Airport (TYS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Philadelphia from McGhee Tyson Airport (TYS)?
If you're flying on a direct flight from McGhee Tyson Airport (TYS) to Philadelphia, Philadelphia Intl. Airport (PHL) is the only airport you can land at.
Is it cheaper to buy a plane ticket from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL) last-minute?
Waiting until just before your departure to book your flight from TYS to PHL generally means paying more. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book a TYS to PHL flight and hotel package?
Compared with arranging flights and hotels separately, booking a TYS to PHL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from McGhee Tyson Airport (TYS) to Philadelphia Intl. Airport (PHL)?
If you reserved your TYS to PHL flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.