PHL - TYS

$34 Find Cheap Flights from Philadelphia to Knoxville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Knoxville departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$97
Typical prices: $124-$480
Allegiant Air
Thu 7/23Sun 7/26
PHL - TYS • Non-stop
Cheapest one-way
$34
Typical prices: $101-$423
Allegiant Air
Thu 7/16
PHL - TYS • Non-stop
Nonstop flights
You can fly direct with American Airlines and Allegiant Air. Average duration is 2h 09m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $241 (round-trip)
Shortest trip • 4h 17m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 58% price drop
Most popular
Good to know
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Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Knoxville (PHL-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Knoxville

Thu, Jul 23 - Sun, Jul 26
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:38 pm - 5:28 pm
TYS
-
PHL
1h 50mnonstop
$97Allegiant Air
Sun, Aug 2 - Thu, Aug 6
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
$98Allegiant Air
Thu, Jul 16 - Thu, Jul 30
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:38 pm - 5:28 pm
TYS
-
PHL
1h 50mnonstop
$100Allegiant Air
Fri, Aug 21 - Mon, Aug 24
Allegiant Air Logo
4:35 pm - 6:35 pm
PHL
-
TYS
2h 00mnonstop
Allegiant Air Logo
1:55 pm - 3:45 pm
TYS
-
PHL
1h 50mnonstop
$101Allegiant Air
Thu, Jul 30 - Sun, Aug 2
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:38 pm - 5:28 pm
TYS
-
PHL
1h 50mnonstop
$103Allegiant Air
Sun, Aug 2 - Thu, Aug 6
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
$104Allegiant Air
Thu, Jul 30 - Sun, Aug 2
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:38 pm - 5:28 pm
TYS
-
PHL
1h 50mnonstop
$105Allegiant Air
Sun, Aug 2 - Thu, Aug 6
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
$106Allegiant Air
Sun, Aug 2 - Thu, Aug 6
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
$107Allegiant Air
Thu, Jul 30 - Thu, Aug 6
Allegiant Air Logo
6:18 pm - 8:21 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
2:56 pm - 4:46 pm
TYS
-
PHL
1h 50mnonstop
$109Allegiant Air
Booking Insights

KAYAK's insights & trends for Philadelphia to Knoxville flights

Get data-powered insights and trends into flights from Philadelphia to Knoxville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Philadelphia to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Knoxville departing in July.

What’s the cheapest day of the week to fly from Philadelphia to Knoxville?

The average price of all round-trip flights from Philadelphia to Knoxville clicked on KAYAK for each day over the last 12 months.

When flying from Philadelphia to Knoxville, you should consider leaving on a Saturday and avoid Mondays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Philadelphia to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Knoxville is July, where tickets cost $186 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $549 and $530 respectively.

Can I save money by flying with a layover from Philadelphia to Knoxville?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $149, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Philadelphia to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Knoxville, you should book around 5 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$34
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Philadelphia to Knoxville

When to book flights from Philadelphia to Knoxville

Are your dates flexible? Find out the best times to travel from Philadelphia to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Knoxville

  • Are there public artworks for sightseeing at TYS airport?

    Yes. There are multiple art exhibits located throughout the terminal. Visit the Knoxville History Walk which showcases the city's history and heritage with historical photographs and information about historic locations found in Knoxville. You can also see different exhibitions at the airport art gallery including works by renowned local artists, traveling exhibits and featured artworks.

  • Which ground transportation services are available at TYS airport?

    TYS airport offers ground transportation services accessible for passengers landing at the airport including bus, taxi and car rental services. Car rental is more reliable and efficient and passengers can rent a car of their choice at the airport. Alamo, Payless, Dollar, Hertz, National, Enterprise, Budget and Avis.

  • How is parking at PHL airport?

    Parking at Philadelphia Airport Parking facilities is safe as security is always on duty throughout 24 hours to protect against theft from vehicles parked within the perimeter of the parking facility, even when you are away from them. The economy parking lot at the airport's north end offers long-term parking services. If you need short-term services, use the terminal parking garages A, B, C and E/F.

  • Which lounges are passenger-accessible at PHL airport?

    Philadelphia Airport hosts several lounges accessible to all passengers. In Terminal A you will find; The Centurion Lounge, Galleries Club Lounge and Admirals Club. United Club and Delta Sky Cub are located in Terminal D. There is the USO Lounge for active US military members in Terminal E.

  • What is the cheapest flight from Philadelphia to Knoxville?

    In the last 5 days, the lowest price for a flight from Philadelphia to Knoxville was $34 for a one-way ticket and $97 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Knoxville?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Philadelphia to Knoxville?

    Philadelphia airport is called Philadelphia and the only airport in Knoxville is Knoxville McGhee Tyson.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to Knoxville?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Philadelphia to Knoxville flight route.

  • Which aircraft models fly most regularly from Philadelphia to Knoxville?

    The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the Philadelphia to Knoxville flight route.

  • Which airline alliances offer flights from Philadelphia to Knoxville?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Philadelphia and Knoxville, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Philadelphia to Knoxville?

    There are nonstop flights from Philadelphia to Knoxville on a daily basis.

  • Which is the best airline for flights from Philadelphia to Knoxville, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Knoxville are Southwest and Delta. With an average price for the route of $422 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $511 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Philadelphia to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Philadelphia to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $77 or less one-way and $124 or less round-trip.
  • P hiladelphia International Airport (PHL) is family-friendly and ideal for family travelers with kids. It has a children's play area where you can visit as a family to have fun together during your downtime at the airport. It offers entertainment, including caricaturists and a kids’ program called Just Plane Fun. It is located in Terminal A-East.
  • Disabled travelers will appreciate flying out through PHL airport as it offers special facilities to accommodate passengers with limited mobility. It has an accessible parking lot with a moving walkway to the terminals, which includes 24h security, special elevators for transporting wheelchairs and a self-check-in system. Other facilities include Braille signage, adapted toilets, ramps and TTY telephones found throughout the airport.
  • If you plan a trip with your pet, PHL airport is the ideal airport to fly through since it offers convenient pet facilities. There are Pet Ports in each terminal where you can take your furry friend to have fun while waiting for your flight. It also has outdoor pet relief areas close to gate A16 of Terminal A, on the B side of Terminal B walkway and gate E1 of Terminal E.
  • McGhee Tyson Airport (TYS) is suitable for corporate travelers on a business trips. This is because it provides a wide range of essential business amenities. There is a business center on the terminal's second floor equipped with printers, computers, fax machines and photocopiers. If you need conference facilities, visit the onsite Hilton Knoxville Airport hotel with conference rooms with state-of-the-art equipment.
  • Traveling mothers will be pleased to land at TYS airport since they will access convenient baby care facilities upon landing. There are several changing tables within the airport's restrooms and nursing rooms at every gate. You can visit the private Mamava Pod, located past the TSA Security Checkpoint if you want to breastfeed your infant or pump breast milk.

Prefer to fly direct from Philadelphia to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to Knoxville McGhee Tyson.
Find which airlines fly direct from Philadelphia Airport to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Philadelphia to Knoxville McGhee Tyson

Monday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Friday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Saturday

American Airlines

American Airlines

Sunday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

See more direct flights

Direct returns

Knoxville McGhee Tyson to Philadelphia

Monday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Friday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Saturday

American Airlines

American Airlines

Sunday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

See more direct flights

Reviews of the top 5 airlines serving from Philadelphia to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

My experience will Southwest was good. I wish there was more entertainment and the boarding process was slow at time but other than that my experience was great definitely will be flying with SouthWest again.

8.0 ExcellentAnonymous, Jul 2026
PHL - BNA
Read more Southwest reviews

My experience will Southwest was good. I wish there was more entertainment and the boarding process was slow at time but other than that my experience was great definitely will be flying with SouthWest again.

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

For my birthday trip this was my second time ever flying, this trip was the best.

I really wish that SW would ask anyone with a carry-on to wait while those who don’t have to access the overhead bins are boarded. Then, reverse that when the plane arrives. Those without the need to clog up the aisle retrieving their bags from the overhead bins wait for those exiting the plane without needing to clog up. The aisle.

We boarded the flight and set two and a half hours on the jetway. Would have been better if they had not boarded us at all. Plane was hot and it was limited ability to access the restrooms or get a drink of water. Very unpleasant experience

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

Should never have had to go to Detroit from Orlando back to Tennessee!

Connection flights should be spaced out farther because too close I missed my connection.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

Smallest leg room I've ever had on a plane.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

My flight consistently said it was on time and the plane didn’t arrive until after 30 minutes after take off and nothing was announced to passengers

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

We had excellent customer service despite the chaos at George Bush airport in Houston!

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

My husband and I recently had an unfortunate experience with Lufthansa. At the Philadelphia International airport, the ground staff refused to board us because we didn’t have a current visa stamped on our passports for Frankfurt. We completely understand that this was our mistake. we should have double-checked the visa requirements before our trip. However, the issue that upset us most was how the situation was handled by the staff. They told us they would mark it as “boarding denied due to visa issue”, but instead they recorded it as “no show”. Because of that incorrect entry, our return flight was automatically cancelled as well, which caused additional stress and expense. Mistakes can happen, but we expected more transparency and accuracy from a reputed airline like Lufthansa. It would have made a big difference if the staff had been more careful and considerate in documenting the situation correctly.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Flight was on time, crew were excellent. For some reason our originally selected seats were changed. We had to re-choose our seats when we checked in online and options were limited. One of our two checked bags we placed on the wrong carousel. It was only be shear luck that I saw it. That cost us 20 minutes of wasted time. So much for the “priority” tags. They are meaningless, and have been ever since they were implemented. I wish you would do the save some money and stop using them.

For some strange reason I was put in zone 5 for boarding even though I had paid premium price for a premium seat right behind business class. This must have been a flaw because everyone else around me in the same zone (row) had been placed in zone 3.

This is a no frills, get it done, efficient airline. The seat is a lawn chair. You better bring your own entertainment. If you want something other than water you need to pay for it. But they will get you to your destination quickly, on time, and then they will turn the flight around and go right back where they came from. Reliably. Couple times a week tops. If it fits into your schedule, you can’t get there cheaper or faster.

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Great seat space. However food and drink prices outrageous. Jabbing to pay for a carry on bag or stuck paying at the gate too much.

My TSA number was missing from my ticket which shouldn’t have happened since it’s in my file. The on board flight attendant who was a male, did not want to help me put my luggage in the overhead bin and made a very rude comment and was very unpleasant. The good… the woman who fixed my ticket with the TSA number was excellent and I had extra legroom which was perfect.

desk agent in sioux falls is rough .needs customer courtesy training

Plane had mechanic problem that was never explained. Had to bring a plane from another airport. Six hour delay. No apology for the delay. Not even an acknowledgment.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

At least it was a short flight. Greyhound with wings.

late again! but its my only option to not take 9 hours to get to Memphis

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

Our flight got changed and/or delayed 8 times before we boarded.

all good still 18 min late taking off. Wish AA could get with the program and be one time for once.

Everything you need to know for your flight from Philadelphia to Knoxville

Information on your arrival and departure airports