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$78+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHL
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Philadelphia are usually found in January or November, booked 77 days in advance, depart on a Wednesday or Thursday and return on a Saturday

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 October 20, 2025.

This Frontier deal was found by Cheapflights users on 10/18. 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 10/18$168
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 11/135:38 pmTYS - PHL
1 stop18h 14mMultiple Airlines
Sun 11/1610:32 pmPHL - TYS
1 stop24h 42mMultiple Airlines
Deal found 10/19$178
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 11/135:38 pmTYS - PHL
1 stop18h 14mMultiple Airlines
Mon 11/175:05 amPHL - TYS
1 stop18h 09mMultiple Airlines
Deal found 10/19$184
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 11/179:29 pmTYS - PHL
1 stop20h 11mMultiple Airlines
Mon 11/246:15 amPHL - TYS
1 stop16h 37mMultiple Airlines
Deal found 10/20$203
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 11/246:32 pmTYS - PHL
1 stop13h 00mMultiple Airlines
Tue 12/28:00 amPHL - TYS
1 stop28h 03mMultiple Airlines
Deal found 10/19$212
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 12/59:23 amTYS - PHL
1 stop15h 13mMultiple Airlines
Sun 12/75:45 pmPHL - TYS
1 stop14h 48mMultiple Airlines
Deal found 10/19$218
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 12/45:42 pmTYS - PHL
1 stop16h 18mMultiple Airlines
Sun 12/79:09 pmPHL - TYS
1 stop11h 24mMultiple Airlines
Deal found 10/20$230
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 11/69:00 amTYS - PHL
1 stop7h 14mMultiple Airlines
Sun 11/96:57 pmPHL - TYS
1 stop19h 00mMultiple Airlines
Deal found 10/18$236

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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$178
(Kiwi.com)

One-way from

$78
(Frontier)

Popular in

October

Cheapest in

January

Average price

$490

Good round-trip deal

$466 or less

Good one-way deal

$305 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Philadelphia flights.
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From Knoxville McGhee Tyson to Philadelphia
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One-way flight from Knoxville McGhee Tyson to Philadelphia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Philadelphia.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Philadelphia.
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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 October 20, 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 11/13

5:38 pm-11:52 am

1 stop18h 14m

Philadelphia

Sun 11/16

10:32 pm-11:14 pm

1 stop24h 42m

$178

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 11/17

9:29 pm-5:40 pm

1 stop20h 11m

Philadelphia

Mon 11/24

6:15 am-10:52 pm

1 stop16h 37m

$203

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 11/24

6:32 pm-7:32 am

1 stop13h 00m

Philadelphia

Tue 12/2

8:00 am-12:03 pm

1 stop28h 03m

$212

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 11/13

9:54 am-9:15 pm

2 stops11h 21m

Philadelphia

Mon 11/17

10:25 am-11:14 pm

2 stops12h 49m

$262

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 11/24

6:32 pm-7:32 am

1 stop13h 00m

Philadelphia

Mon 12/1

6:41 pm-12:03 pm

2 stops41h 22m

$269

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 11/24

7:35 am-9:31 am

Nonstop1h 56m

Philadelphia

Tue 12/2

1:41 pm-3:49 pm

Nonstop2h 08m

$355

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 12/6

10:55 am-12:54 pm

Nonstop1h 59m

Philadelphia

Wed 12/10

6:52 pm-9:00 pm

Nonstop2h 08m

$355

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 11/22

7:27 pm-12:26 am

2 stops28h 59m

Philadelphia

Sun 11/30

8:42 pm-3:49 pm

1 stop19h 07m

$362

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 12/15

4:52 pm-5:31 am

1 stop12h 39m

$78

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 12/11

5:12 pm-12:36 am

1 stop7h 24m

$101

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 18 results
1
2

Compare providers for flights from Knoxville to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Philadelphia in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 17, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to Philadelphia, you should look to book at least 71 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, July is the cheapest month in which you can book a flight from Knoxville to Philadelphia (average of $40). Flying from Knoxville to Philadelphia in December is currently the most expensive (average of $159). 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 October 20, 2025.

It’s optimal to fly from Knoxville to Philadelphia in the evening. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Knoxville to Philadelphia?

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 October 20, 2025.
Read through reviews of airlines operating flights from Knoxville to Philadelphia, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,024 reviews

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,024 reviews
American Airlines
7.2
Good
11,024 reviews

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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 8 flights from McGhee Tyson (TYS) to Philadelphia (PHL) per day to choose from. Flights to Philadelphia from McGhee Tyson are available from 1 airline, 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.

  • What is the cheapest airline to fly from Knoxville to Philadelphia round-trip?

    Flying on American Airlines is currently your cheapest option to Philadelphia, with prices starting at $355. Users have found that American Airlines is 21% cheaper than the other options available to this destination.

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

    Consider PSA Airlines (90%), American Airlines (87%) or Piedmont Airlines (87%) 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 $551, our data indicates the cheapest price to be $223. The most popular route (Knoxville McGhee Tyson - Philadelphia), is priced around $178.

  • 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, July is the cheapest month in which you can book a flight from Knoxville to Philadelphia (average of $40). Flying from Knoxville to Philadelphia in December is currently the most expensive (average of $159). 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
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace

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Top airline flying from Knoxville to Philadelphia

Discover the top airline 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$355Average$456FlexibilityNo cancel feeOn-time71%

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