Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Knoxville to Philadelphia
The cheapest flights right now
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
direct
2h 2m $73
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
8h 49m SFB
$159
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
10h 42m MCO
$189
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
6h 21m MCO
$235
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$85
Average price of a round trip
$87
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
1h50
A flight from Knoxville to Philadelphia takes on average 1h50.
Best time
September
According to user searches, the ideal month to go to Philadelphia is September.
The best flight deals for a weekend
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
direct
2h 2m $73
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
8h 49m SFB
$159
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
10h 42m MCO
$189
2 days ago
Knoxville – Philadelphia
Outbound – Dec 11, 2026
direct
1h 52m Return – Dec 14, 2026
1 stop
6h 21m MCO
$235
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from Knoxville to Philadelphia
Check out our tips for booking your flight to Philadelphia (USA) from Knoxville (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is October, with an average flight ticket price of $87 (calculation over the last two years). The most touristic season corresponds to the months of October, November and January.
For the cheapest flights, it is advisable to buy your ticket at least 29 days before the departure date.
The airline offering the cheapest flight tickets is Allegiant Air. A ticket from the airline Allegiant Air to Philadelphia costs on average $87.
The airlines that offer the most flights are Allegiant Air and Allegiant Air.
Price of flight tickets from Knoxville to Philadelphia
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $85 to $89
- The average price of a flight ticket is about $87
- Prices are lowest for stays in the month of October
- The month in which booking a ticket is cheaper is: October
info departure city :
Knoxville, USA
airports :
McGhee Tyson Airport (TYS)
Knoxville Downtown Island Airport (DKX)
local time :
Knoxville is a city in the country USA, the time zone is [[timezone]]. In Knoxville, it is currently {fromLocalTime}, the temperature is on average 13°C, with a minimum of 7°C and a maximum of 21°C.
The city of Knoxville has 2 airport(s): McGhee Tyson and Knoxville Downtown Island
destination info :
Philadelphia, USA
airports :
Philadelphia International Airport (PHL)
Northeast Philadelphia Airport (PNE)
local time :
Philadelphia is in the country USA, the time zone is [[timezone]]. In Philadelphia, it is currently {toLocalTime}, the temperature is on average 13°C, with a minimum of 8°C and a maximum of 18°C.
The city of Philadelphia (PHL) has 2 airport(s): Philadelphia International and Northeast Philadelphia
Useful info about Philadelphia
What is the least touristic period to go to Philadelphia?
If you want to visit Philadelphia during the least touristic period, choose the month of September.
What is the most popular time to travel to Philadelphia?
In Philadelphia, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Knoxville to Philadelphia?
According to our data, it is recommended to book your flight 29 days before your departure. If you book your flight ticket 5 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Knoxville to Philadelphia is Friday.
What are the arrival and destination airports when traveling between Knoxville and Philadelphia?
When you leave, you can leave from McGhee Tyson, and you will arrive at Philadelphia International.
How to reach Knoxville airport from the city centre?
The airport McGhee Tyson is located 16 km or Knoxville Downtown Island is located 5 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Knoxville to Philadelphia?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Knoxville and Philadelphia?
In summer, the average temperature is 24°C in Philadelphia and 24°C in Knoxville. The average rainfall in summer is 129 mm in Philadelphia and 132 mm in Knoxville. In summer, it is warmer in Philadelphia and it rains less in Philadelphia. In winter, it is colder in Knoxville and it rains more in Knoxville.
