PHL - TYS

$39 Find Cheap Flights from Philadelphia to Knoxville

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 5/24. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Knoxville, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$88
Typical prices: $559-$447
Allegiant Air
Thu 5/21Thu 5/28
PHL - TYS • Non-stop
Cheapest one-way
$39
Typical prices: $153-$470
Allegiant Air
Sun 5/24
PHL - TYS • Non-stop
Nonstop flights
You can fly direct with American Airlines and Allegiant Air. Average duration is 2h 10m
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 12m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
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Flight Deals
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, May 21 - Thu, May 28
Allegiant Air Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$88Allegiant Air
Thu, May 21 - Thu, May 28
Allegiant Air Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$98Allegiant Air
Thu, May 21 - Sun, May 24
Allegiant Air Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$105Allegiant Air
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
6:27 pm - 8:30 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$108Allegiant Air
Thu, May 21 - Sun, May 24
Allegiant Air Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$109Allegiant Air
Thu, May 21 - Sun, May 24
Allegiant Air Logo
6:53 pm - 8:56 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
3:46 pm - 5:36 pm
TYS
-
PHL
1h 50mnonstop
$110Allegiant Air
Thu, Jul 16 - Sun, Jul 19
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
$111Allegiant Air
Thu, Jul 2 - Sun, Jul 5
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
$132Allegiant Air
Sun, Aug 16 - Fri, Aug 21
Allegiant Air Logo
5:36 pm - 7:39 pm
PHL
-
TYS
2h 03mnonstop
Allegiant Air Logo
1:55 pm - 3:45 pm
TYS
-
PHL
1h 50mnonstop
$137Allegiant 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
$145Allegiant 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 May.

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 Wednesday 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 $411 (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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $471 on average.

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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$39
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 7% increase in price.
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 3 days, the lowest price for a flight from Philadelphia to Knoxville was $39 for a one-way ticket and $88 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 Embraer ERJ-145 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, 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, Delta or Allegiant Air?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Knoxville are Delta and Allegiant Air. With an average price for the route of $528 and an overall rating of 7.9, Delta is the most popular choice. Allegiant Air is also a great choice for the route, with an average price of $170 and an overall rating of 7.3.

  • 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 $85 or less one-way and $421 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

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Philadelphia

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

See more direct flights

Reviews of the top 3 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
DeltaOverall score based on 8342 reviews
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

2.0 MediocreAliya, Mar 2026
JFK - ATL
Read more Delta reviews

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

The cabin temperature was nice and cool. The wifi was not working.

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

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

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

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.

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

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

Information on your arrival and departure airports