TYS - PHL

$54 Find Cheap Flights from Knoxville to Philadelphia - Compare and Save

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Everything you should know

Cheapest round-trip
$60
Typical prices: $158-$546
Allegiant Air
Mon 1/8Thu 1/11
TYS - PHL • Non-stop
Cheapest one-way
$54
Typical prices: $79-$457
Allegiant Air
Tue 11/13
TYS - PHL • Non-stop
Nonstop flights
You can fly direct with American Airlines and Allegiant Air. Average duration is 1h 57m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 76% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 68% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $389 (round-trip)
Shortest trip • 4h (one-way)
Insights
Insights
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We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Knoxville to Philadelphia (TYS-PHL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Philadelphia

Fri, Jan 8 - Mon, Jan 11
Allegiant Air Logo
1:57 pm - 3:49 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 52mnonstop
Allegiant Air Logo
4:39 pm - 6:41 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 02mnonstop
$60Allegiant Air
Fri, Jan 8 - Mon, Jan 11
Allegiant Air Logo
1:57 pm - 3:49 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 52mnonstop
Allegiant Air Logo
4:39 pm - 6:41 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 02mnonstop
$62Allegiant Air
Fri, Nov 13 - Mon, Nov 16
Allegiant Air Logo
1:17 pm - 3:07 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 50mnonstop
Allegiant Air Logo
5:01 pm - 7:01 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 00mnonstop
$75Allegiant Air
Fri, Dec 4 - Mon, Dec 7
Allegiant Air Logo
1:58 pm - 3:50 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 52mnonstop
Allegiant Air Logo
4:40 pm - 6:42 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 02mnonstop
$76Allegiant Air
Fri, Dec 4 - Mon, Dec 7
Multiple Airlines Logo
9:49 pm - 11:11 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
25h 22m2 stops Orlando Sanford Intl Atlanta Hartsfield-Jackson
Multiple Airlines Logo
4:40 pm - 6:42 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 02mnonstop
$164Multiple Airlines
Fri, Nov 20 - Mon, Nov 23
Multiple Airlines Logo
12:38 pm - 2:30 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 52mnonstop
Multiple Airlines Logo
5:01 am - 11:29 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
18h 28m1 stop Orlando
$166Multiple Airlines
Fri, Dec 4 - Mon, Dec 7
Multiple Airlines Logo
9:49 pm - 9:00 amTYS  Knoxville McGhee Tyson-PHL Philadelphia
11h 11m1 stop Orlando Sanford Intl
Multiple Airlines Logo
4:40 pm - 6:42 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 02mnonstop
$174Multiple Airlines
Tue, Dec 8 - Sat, Jan 16
American Airlines Logo
11:22 am - 8:14 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
8h 52m1 stop Chicago O'Hare Intl
American Airlines Logo
6:43 pm - 8:54 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
2h 11mnonstop
$455American Airlines
Tue, Dec 8 - Sat, Jan 16
American Airlines Logo
11:22 am - 8:14 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
8h 52m1 stop Chicago O'Hare Intl
American Airlines Logo
2:54 pm - 6:42 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
3h 48m1 stop Charlotte Douglas
$465American Airlines
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
12:42 pm - 2:39 pmTYS  Knoxville McGhee Tyson-PHL Philadelphia
1h 57mnonstop
American Airlines Logo
7:26 am - 4:29 pmPHL  Philadelphia-TYS Knoxville McGhee Tyson
9h 03m1 stop Chicago O'Hare Intl
$467American Airlines
Booking Insights

Price, demand and travel trends for Knoxville to Philadelphia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Knoxville to Philadelphia typically range from $158 to $546. The lowest price found in the past 5 days was $60, on Allegiant Air.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Knoxville to Philadelphia. It’s 65% cheaper than the average day, while Monday is the most expensive, with prices 105% higher.

What’s the cheapest month to fly from Knoxville to Philadelphia?

•September is the cheapest month to fly from Knoxville to Philadelphia at $148 round-trip.
•April ($585) and March ($558) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 295% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Knoxville to Philadelphia the cheapest?

Flights from Knoxville to Philadelphia are cheapest 13 weeks before departure. Booking in this window typically costs about 76% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Knoxville to Philadelphia

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Knoxville to Philadelphia flights

Low season

January

Cheapest flight

$54
Beat the crowds with an average 51% drop in travelers.
The most popular month to fly with an average 35% increase in travelers.
One-way flight from Knoxville to Philadelphia

When to book flights from Knoxville to Philadelphia

Are your dates flexible? Find out the best times to travel from Knoxville to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Knoxville to Philadelphia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Knoxville to Philadelphia?

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

    • Earliest: departs at 6:00 am and lands at 7:57 am
    • Latest: departs at 7:04 pm and lands at 9:01 pm.

    The flight takes about 1h 57m.

  • What cabin classes can I book on flights from Knoxville to Philadelphia?

    Two cabin classes are available on flights from Knoxville to Philadelphia:

    • Economy Class
    • First Class

  • How long is a flight from Knoxville to Philadelphia?

    A nonstop flight from Knoxville to Philadelphia takes 1h 57m, covering 553 miles.

  • Do I need a passport to fly from Knoxville to Philadelphia?

    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.

  • How much should I expect to pay for a Knoxville to Philadelphia flight?

    Round-trip flights from Knoxville to Philadelphia range from $158 to $546, with an average of $461 over the past 12 months. Anything below $158 counts as a good deal.

  • How expensive are last-minute Knoxville to Philadelphia flights?

    Last-minute fares on this route (booked within two weeks of departure) run 49% above the $461 route average. Book 13 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Knoxville to Philadelphia?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $389 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $457 for nonstop.

  • What is the standard checked-bag allowance on flights from Knoxville to Philadelphia?

    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.

  • Which aircraft model is used most often on flights from Knoxville to Philadelphia?

    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.

  • How are flight departures from Knoxville to Philadelphia spread across the day?

    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%.

  • Which airlines offer Wi-Fi on Knoxville to Philadelphia flights?

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

  • How are flight prices from Knoxville to Philadelphia looking right now?

    One-way fares from Knoxville to Philadelphia are currently lower than usual. Average one-way flight prices are about $178, which is 15% below the typical average for this route.

  • What car rental options are available at Philadelphia Airport (PHL)?

    Philadelphia Airport (PHL) hosts 5 major car rental companies, with daily rates averaging $69 for economy cars. Top options include:

    • Payless
    • Dollar
    • Hertz
    • Thrifty
    • Alamo

  • Which airports can I use when flying from Knoxville to Philadelphia?

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

  • Which airports do connecting flights from Knoxville to Philadelphia pass through?

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

    • Atlanta Hartsfield-Jackson (ATL) - 42% of one-stop connections
    • Nashville Intl (BNA) - 25% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 17% of one-stop connections
    • Charlotte Douglas (CLT) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from Knoxville to Philadelphia?

    Yes. Flexible dates can save you up to 83% on flights from Knoxville to Philadelphia. Thursday is the cheapest departure day at $165 round-trip on average, while Monday is the most expensive at $946, a difference of $781.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Knoxville to Philadelphia?

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

    • American Airlines
    • Allegiant Air

  • How much time can I save by choosing a different layover airport from Knoxville to Philadelphia?

    Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 4h, compared with 4h 17m via Atlanta Hartsfield-Jackson (ATL) and 4h 20m via Detroit Metropolitan Wayne County (DTW).

  • What popular places can I visit in Philadelphia?

    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.

  • Which airlines offer extra legroom and free seat selection on Knoxville to Philadelphia flights?

    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.

  • Which airlines include bags at no extra cost on Knoxville to Philadelphia flights?

    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 always check the fare details before booking.

Your guide to booking Knoxville to Philadelphia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average $165, about $781 less than Monday fares (83% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 76% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Knoxville to Philadelphia trip for September. Fares historically average $148 round-trip in that month - typically $437 less than the most expensive month, which is April (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Detroit Metropolitan Wayne County Airport (DTW) can be cheaper than flying direct. The cheapest layover option averages $389 round-trip on this route - about $68 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Philadelphia Airport.

    • Microtel Inn & Suites by Wyndham Philadelphia Airport
    • Sonesta Select Philadelphia Airport
    • Embassy Suites by Hilton Philadelphia Airport

Prefer to fly direct from Knoxville to Philadelphia?

 
Find which airlines fly direct from Knoxville McGhee Tyson Airport to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Knoxville McGhee Tyson to Philadelphia

Monday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Thursday

American Airlines

American Airlines

Friday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Saturday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Sunday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

See more direct flights

Direct returns

Philadelphia to Knoxville McGhee Tyson

Monday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Thursday

American Airlines

American Airlines

Friday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

Saturday

American Airlines,Allegiant Air

American Airlines,Allegiant Air

Sunday

Allegiant Air,American Airlines

Allegiant Air,American Airlines

See more direct flights

More options for your flight from Knoxville to Philadelphia

Complete your trip to Philadelphia with a hotel stay or car rental