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$109+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHL
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Philadelphia are usually found in June or July, booked 75 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(Frontier)

One-way from

$109
(Mytrip)

Popular in

April

Cheapest in

June

Average price

$288

Good round-trip deal

$468 or less

Good one-way deal

$264 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
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Highest demand for flights based on searches. 12% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Frontier deal was found by Cheapflights users on 4/30. 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.
Sun 6/85:25 pmTYS - PHL
1 stop11h 45mFrontier
Sun 6/156:15 amPHL - TYS
1 stop10h 14mFrontier
Deal found 4/30$241
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/145:02 pmTYS - PHL
1 stop16h 51mMultiple Airlines
Thu 5/226:00 amPHL - TYS
1 stop28h 16mMultiple Airlines
Deal found 4/29$268
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2410:05 amTYS - PHL
1 stop6h 54mAmerican Airlines
Sun 5/2510:41 amPHL - TYS
1 stop8h 33mAmerican Airlines
Deal found 4/30$347
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/812:03 pmTYS - PHL
1 stop4h 12mDelta
Sat 7/128:00 amPHL - TYS
1 stop5h 54mDelta
Deal found 4/29$375
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/209:55 amTYS - PHL
1 stop4h 11mUnited Airlines
Sat 8/237:58 pmPHL - TYS
1 stop3h 59mUnited Airlines
Deal found 4/29$445

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 May 1, 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

Sun 6/8

5:25 pm-5:10 am

1 stop11h 45m

Philadelphia

Sun 6/15

6:15 am-4:29 pm

1 stop10h 14m

$241

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 5/14

5:02 pm-9:53 am

1 stop16h 51m

Philadelphia

Thu 5/22

6:00 am-10:16 am

1 stop28h 16m

$268

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 5/24

10:05 am-4:59 pm

1 stop6h 54m

Philadelphia

Sun 5/25

10:41 am-7:14 pm

1 stop8h 33m

$347

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Tue 7/8

12:03 pm-4:15 pm

1 stop4h 12m

Philadelphia

Sat 7/12

8:00 am-1:54 pm

1 stop5h 54m

$375

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Wed 8/20

9:55 am-2:06 pm

1 stop4h 11m

Philadelphia

Sat 8/23

7:58 pm-11:57 pm

1 stop3h 59m

$445

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Mon 5/12

10:00 am-7:48 am

1 stop21h 48m

$109

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Thu 5/29

5:30 pm-5:07 am

1 stop11h 37m

$116

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sun 5/11

10:55 am-12:48 pm

Nonstop1h 53m

$265

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Sat 8/2

6:42 am-10:37 am

1 stop27h 55m

$295

KnoxvillePhiladelphia

TYS - PHL

TYSPHL

Knoxville McGhee Tyson

Fri 8/1

5:00 pm-10:31 pm

1 stop29h 31m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust 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 eDreams the most. eDreams 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 April 25, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to Philadelphia, you should look to book at least 75 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 May 1, 2025.

It’s optimal to fly from Knoxville to Philadelphia in the evening. By choosing this option you can save up to 61% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 May 1, 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Knoxville to Philadelphia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,287 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 5 flights from McGhee Tyson (TYS) to Philadelphia (PHL) per day to choose from. Flights to Philadelphia from McGhee Tyson are available from 4 different airlines, which means you should have some options if you want to compare airfare deals. 1h 53m 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 23 times in the past calendar month.

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

    Flying on Frontier is currently your cheapest option to Philadelphia, with prices starting at $241. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $347 and $375, respectively. Users have found that Frontier is 34% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Knoxville to Philadelphia one-way?

    $116 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $265 and $295, respectively.

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

    Consider PSA Airlines (89%), Alaska Airlines (82%) or British Airways (82%) 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 $1,095, our data indicates the cheapest price to be $200. The most popular route (Knoxville McGhee Tyson - Philadelphia), is priced around $229.

  • 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Vineland
Pottstown
Wildwood
King of Prussia
Reading
Cherry Hill
Exton
Ocean City
Essington
Chester
Middletown
Willow Grove
Newark
Millville
Ephrata
Camden
Dewey Beach
West Chester
Malvern
Dover

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Top 4 airlines flying from Knoxville to Philadelphia

Discover the top 4 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$84FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$162Average$401FlexibilityNo cancel feeOn-time71%
DeltaCheapest$176Average$329FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$195Average$300FlexibilityNo cancel feeOn-time69%

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