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$114+ Cheap flights from Knoxville to Philadelphia (TYS - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Philadelphia are usually found in January or November, booked 88 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Knoxville to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$211
(Kiwi.com)

One-way from

$114
(Kiwi.com)

Popular in

September

Cheapest in

January

Average price

$484

Good round-trip deal

$425 or less

Good one-way deal

$190 or less
From Knoxville McGhee Tyson to Philadelphia
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One-way flight from Knoxville McGhee Tyson to Philadelphia
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Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Philadelphia.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Philadelphia.
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Find flight deals from Knoxville to Philadelphia

Cheapest flights from Knoxville to Philadelphia
Explore the most affordable flight options available from Knoxville to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:15 pmTYS - PHL
1 stop14h 37mMultiple Airlines
Fri 11/710:32 pmPHL - TYS
1 stop9h 44mMultiple Airlines
Deal found 9/15$211
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:00 amTYS - PHL
1 stop26h 06mMultiple Airlines
Sat 10/49:50 pmPHL - TYS
1 stop22h 35mMultiple Airlines
Deal found 9/14$213
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:00 amTYS - PHL
1 stop26h 06mMultiple Airlines
Fri 10/39:50 pmPHL - TYS
1 stop12h 28mMultiple Airlines
Deal found 9/14$214
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:00 amTYS - PHL
1 stop26h 06mMultiple Airlines
Sun 10/55:20 amPHL - TYS
1 stop15h 05mMultiple Airlines
Deal found 9/14$217
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:15 pmTYS - PHL
1 stop14h 37mMultiple Airlines
Sun 10/2610:02 pmPHL - TYS
1 stop21h 58mMultiple Airlines
Deal found 9/13$222
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:17 pmTYS - PHL
1 stop9h 02mFrontier
Mon 10/276:42 amPHL - TYS
1 stop12h 50mFrontier
Deal found 9/14$225
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:40 amTYS - PHL
1 stop13h 47mMultiple Airlines
Sun 10/2610:54 amPHL - TYS
1 stop9h 31mMultiple Airlines
Deal found 9/15$228
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:55 pmTYS - PHL
1 stop15h 51mMultiple Airlines
Tue 9/302:30 pmPHL - TYS
1 stop28h 54mMultiple Airlines
Deal found 9/13$230
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:23 pmTYS - PHL
1 stop7h 30mMultiple Airlines
Sun 10/2610:54 amPHL - TYS
1 stop9h 31mMultiple Airlines
Deal found 9/15$238
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:30 amTYS - PHL
1 stop28h 32mMultiple Airlines
Sun 9/285:15 pmPHL - TYS
1 stop24h 19mMultiple Airlines
Deal found 9/13$239
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:26 pmTYS - PHL
2 stops19h 27mMultiple Airlines
Mon 10/205:05 amPHL - TYS
1 stop29h 28mMultiple Airlines
Deal found 9/15$241
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:06 pmTYS - PHL
1 stop19h 05mMultiple Airlines
Sun 10/198:08 pmPHL - TYS
1 stop13h 48mMultiple Airlines
Deal found 9/15$242

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Knoxville to Philadelphia that are best for you.

Fly from

Knoxville

Fly to

Philadelphia

Route

Depart

Return

Price

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 10/23

9:15 pm-11:52 am

1 stop14h 37m

Philadelphia

Fri 11/7

10:32 pm-8:16 am

1 stop9h 44m

$211

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 10/24

8:17 pm-5:19 am

1 stop9h 02m

Philadelphia

Mon 10/27

6:42 am-7:32 pm

1 stop12h 50m

$225

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 10/16

9:01 pm-11:52 am

1 stop14h 51m

Philadelphia

Fri 10/17

9:55 pm-10:18 am

1 stop12h 23m

$272

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 10/24

1:23 pm-1:07 am

2 stops11h 44m

Philadelphia

Wed 10/29

5:33 am-3:36 pm

1 stop10h 03m

$277

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 10/11

9:58 pm-11:00 am

2 stops13h 02m

Philadelphia

Fri 10/17

9:55 pm-10:18 am

1 stop12h 23m

$279

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 11/14

3:41 pm-12:32 am

1 stop8h 51m

Philadelphia

Sun 11/16

4:47 pm-6:37 pm

2 stops25h 50m

$309

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 10/26

5:34 pm-5:19 am

2 stops11h 45m

Philadelphia

Wed 10/29

5:33 am-3:36 pm

1 stop10h 03m

$326

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 11/5

7:38 am-9:34 am

Nonstop1h 56m

Philadelphia

Tue 11/11

1:50 pm-6:54 pm

1 stop5h 04m

$365

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 10/14

7:11 am-1:20 pm

1 stop6h 09m

Philadelphia

Sat 11/1

5:30 am-10:28 am

1 stop4h 58m

$375

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 11/5

5:44 am-9:30 am

1 stop3h 46m

Philadelphia

Tue 11/11

6:30 am-1:44 pm

1 stop7h 14m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 17 results
1
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Best time to book a flight from Knoxville to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Philadelphia. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to Philadelphia, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Philadelphia (average of $236). Flying from Knoxville to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to PHL?

Find hourly flight availability from Knoxville to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

It’s optimal to fly from Knoxville to Philadelphia in the evening. By choosing this option you can save up to 68% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Knoxville to Philadelphia, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Knoxville to Philadelphia?

    If you wish to fly to Philadelphia from Knoxville, then you need to book flights from Knoxville McGhee Tyson to Philadelphia. There are 7 flights from McGhee Tyson (TYS) to Philadelphia (PHL) per day to choose from. Flights to Philadelphia from McGhee Tyson are available from 2 different airlines, which means you should have some options if you want to compare airfare deals. 1h 48m is how long a nonstop flight from Knoxville to Philadelphia typically takes.

  • How popular is this Knoxville to Philadelphia flight route?

    Flights from Knoxville McGhee Tyson to Philadelphia have been viewed 15 times in the past calendar month.

  • How long is the flight from Knoxville to Philadelphia?

    For as low as $225, Frontier can have you in Philadelphia from Knoxville in 9h 02m. The distance from Knoxville to Philadelphia is about 553 mi.

  • What are the cheapest airlines flying from Knoxville to Philadelphia round-trip?

    Flying on Delta is currently your cheapest option to Philadelphia, with prices starting at $198. Another option worth looking into is American Airlines, starting at $347 round trip. Users have found that Delta is 56% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Knoxville to Philadelphia?

    Consider Qatar Airways (89%), Alaska Airlines (86%) or Piedmont Airlines (77%) when booking your flight. These represent the most reliable airlines when flying from Knoxville to Philadelphia.

  • What are the cheapest flights from Knoxville to Philadelphia?

    Looking for the cheapest flight from Knoxville to Philadelphia? While on average our users pay $517, our data indicates the cheapest price to be $140. The most popular route (Knoxville McGhee Tyson - Philadelphia), is priced around $211.

  • Can I find deals for flights from Knoxville to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Knoxville to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Philadelphia.

  • Can I find deals for business class flights from Knoxville to Philadelphia?

    Yes. Cheapflights offers flight deals from Knoxville to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Philadelphia (average of $236). Flying from Knoxville to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Dewey Beach
Ephrata
Camden
Ocean City
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

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Alternative routes for Knoxville to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Knoxville to Philadelphia

Discover the top 2 airlines that operate flights from Knoxville to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$576FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$347Average$454FlexibilityNo cancel feeOn-time71%

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