$36 Find Cheap Flights from Knoxville to Philadelphia - Compare and Save

Among airlines operating Knoxville to Philadelphia flights:

• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Knoxville and Philadelphia. The airlines offering nonstop flights on this route include:

• American Airlines
• Allegiant Air

Flights from Knoxville to Philadelphia usually depart from Knoxville McGhee Tyson (TYS) and arrive at Philadelphia (PHL).

Here are some options for this route, based on selected ticket types and cabin classes:

• American Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Only Economy Class is available on flights from Knoxville to Philadelphia.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $214 round-trip via Denver Intl (DEN), compared to $470 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $39–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Canadair (Bombardier) Regional Jet 900 family is used most often on this route, operated mainly by American Airlines. Other aircraft seen on the route include Embraer ERJ-145 variants.

One-stop flights from Knoxville to Philadelphia most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 25% of one-stop connections
• Nashville Intl (BNA) - 25% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 17% of one-stop connections
• Fort Lauderdale (FLL) - 17% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 83% on the Knoxville to Philadelphia route. Thursday is the cheapest departure day at $162 round-trip on average, while Monday is the most expensive at $946, a difference of $784. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Afternoon is the busiest departure period on Knoxville to Philadelphia flights, with 66% of flights leaving in that window. Morning departures account for 34%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Philadelphia are Philadelphia Convention Center, Rittenhouse Square and Philadelphia Stadium. These are among the most viewed places in Philadelphia on KAYAK.

These are the earliest and latest flight times available from Knoxville to Philadelphia:

• Earliest: departs at 6:00 am and lands at 7:58 am
• Latest: departs at 6:55 pm and lands at 8:53 pm.

The flight takes about 1h 58m.

Last-minute fares on this route - booked within 2 weeks of departure - run 34% above the route average of $468. Book 16 weeks before departure for the lowest fares.

A nonstop flight from Knoxville to Philadelphia takes 1h 58m, covering 553 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Knoxville to Philadelphia are currently lower than usual. Average one-way flight prices are about $155, which is 35% below the typical average for this route.

Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 4h 04m, compared with 4h 20m via Detroit Metropolitan Wayne County (DTW) and 4h 22m via Nashville Intl (BNA).

Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates starting from around $28 for economy cars. Top options include:
• Payless
• Dollar
• Hertz
• Thrifty
• Budget

Round-trip flights from Knoxville to Philadelphia range from $355 to $557, with an average of $468 over the past 12 months. Anything below $355 counts as a good deal.

American Airlines is the only airline on the Knoxville to Philadelphia route offering in-flight Wi-Fi. Pricing depends on fare class.