$36+ Cheap flights from Knoxville to Philadelphia (TYS - PHL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHL
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Philadelphia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Philadelphia are usually found in August or June, booked 23 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Knoxville to Philadelphia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Knoxville to PhiladelphiaExplore 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 4, 2026.
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 4, 2026.
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:54 pm -
Nonstop1h 50m
Mon 10/197:21 pm -
Nonstop2h 00m
Deal found 9/1![Allegiant Air logo]()
$67
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:54 pm -
Nonstop1h 50m
Mon 10/264:52 pm -
Nonstop2h 00m
Deal found 9/2![Allegiant Air logo]()
$85
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:57 pm -
Nonstop1h 50m
Mon 10/264:52 pm -
Nonstop2h 00m
Deal found 9/4![Allegiant Air logo]()
$88
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:54 pm -
Nonstop1h 50m
Mon 9/145:34 pm -
Nonstop2h 00m
Deal found 9/2![Allegiant Air logo]()
$89
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:54 pm -
Nonstop1h 50m
Mon 9/215:34 pm -
Nonstop2h 00m
Deal found 9/4![Allegiant Air logo]()
$95
This CheapOair deal was found by Cheapflights users on 8/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:54 pm -
Nonstop1h 50m
Mon 9/285:34 pm -
Nonstop2h 00m
Deal found 8/31![Allegiant Air logo]()
$107
Best flights from Knoxville to PhiladelphiaDiscover carefully curated flight deals from Knoxville to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from Knoxville to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:20 am -
2 stops11h 15m
Mon 10/197:25 am -
1 stop5h 45m
Deal found 9/1![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 9/116:00 am -
1 stop6h 23m
Sun 9/1310:30 am -
1 stop4h 07m
Deal found 9/1![United Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 9/185:28 pm -
1 stop5h 44m
Mon 9/212:30 pm -
1 stop5h 45m
Deal found 9/2![Delta logo]()
$589
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:05 am -
2 stops10h 35m
Sat 11/211:50 pm -
2 stops8h 50m
Deal found 9/1![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:10 am -
2 stops8h 15m
Tue 9/2210:45 am -
2 stops8h 15m
Deal found 9/3![Southwest logo]()
$477
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/166:00 am -
1 stop6h 23m
Sun 9/207:40 pm -
1 stop4h 19m
Deal found 9/1![United Airlines logo]()
$582
This Southwest deal was found by Cheapflights users on 8/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:50 pm -
2 stops11h 05m
Mon 11/2312:40 pm -
2 stops7h 50m
Deal found 8/31![Southwest logo]()
$483
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 9/86:00 am -
1 stop6h 15m
Mon 9/1410:30 am -
2 stops12h 19m
Deal found 9/3![United Airlines logo]()
$587
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:30 pm -
1 stop4h 20m
Thu 10/12:35 pm -
2 stops8h 05m
Deal found 9/4![Southwest logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 9/86:00 am -
1 stop6h 15m
Sun 9/1310:30 am -
2 stops12h 19m
Deal found 9/3![United Airlines logo]()
$587
This Southwest deal was found by Cheapflights users on 8/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:50 pm -
2 stops11h 05m
Mon 11/305:25 am -
2 stops6h 40m
Deal found 8/31![Southwest logo]()
$543
Last-minute flights from Knoxville to PhiladelphiaDiscover last-minute flight deals from Knoxville to Philadelphia. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Philadelphia. Data last updated September 4, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:54 pm -
Nonstop1h 50m
Mon 9/145:34 pm -
Nonstop2h 00m
Deal found 9/2![Allegiant Air logo]()
$89
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:54 pm -
Nonstop1h 50m
Mon 9/215:34 pm -
Nonstop2h 00m
Deal found 9/4![Allegiant Air logo]()
$95
This CheapOair deal was found by Cheapflights users on 8/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:54 pm -
Nonstop1h 50m
Mon 9/285:34 pm -
Nonstop2h 00m
Deal found 8/31![Allegiant Air logo]()
$107
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:54 pm -
Nonstop1h 50m
Mon 10/197:21 pm -
Nonstop2h 00m
Deal found 9/1![Allegiant Air logo]()
$67
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:54 pm -
Nonstop1h 50m
Mon 10/264:52 pm -
Nonstop2h 00m
Deal found 9/2![Allegiant Air logo]()
$85
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:57 pm -
Nonstop1h 50m
Mon 10/264:52 pm -
Nonstop2h 00m
Deal found 9/4![Allegiant Air logo]()
$88
One-way flights from Knoxville to PhiladelphiaSearch for one-way flight options from Knoxville to Philadelphia. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Knoxville to Philadelphia. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:54 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Allegiant Air logo]()
$36
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:57 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Allegiant Air logo]()
$41
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:12 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Allegiant Air logo]()
$46
This CheapOair deal was found by Cheapflights users on 8/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:57 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Allegiant Air logo]()
$47
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2012:38 pm -
Nonstop1h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Allegiant Air logo]()
$48
This Expedia deal was found by Cheapflights users on 8/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:55 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Allegiant Air logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/61:17 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Allegiant Air logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/258:55 pm -
2 stops26h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$88
Find 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $67 (CheapOair) |
One-way from | $36 (CheapOair) |
Popular in | April |
Cheapest in | August |
Average price | $437 |
Good round-trip deal | $390 or less |
Good one-way deal | $176 or less |
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 7,457,451 searches. Data last updated September 4, 2026.
Use the filters below to find and compare flights from Knoxville to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Wed 12/2
7:05 am-1:15 pm
1 stop6h 10m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$170
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Wed 9/23
7:00 am-1:05 pm
1 stop6h 05m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$214
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Fri 11/20
12:50 pm-11:05 pm
1 stop10h 15m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Wed 11/4
7:26 am-11:47 am
1 stop4h 21m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$225
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Wed 9/9
11:40 am-4:13 pm
1 stop4h 33m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$225
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Sat 10/31
5:40 am-11:06 am
1 stop5h 26m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$225
Quickest round-trip
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Tue 9/29
7:33 am-11:44 am
1 stop4h 11m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$230
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Wed 9/23
5:40 am-11:00 am
1 stop5h 20m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$230
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Thu 10/8
6:00 am-2:20 pm
2 stops8h 20m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$354
KnoxvillePhiladelphia
TYS Knoxville McGhee Tyson - PHL Philadelphia
TYSPHL
Knoxville McGhee Tyson
Fri 10/16
8:20 am-7:35 pm
2 stops11h 15m
Philadelphia
Mon 10/19
7:25 am-1:10 pm
1 stop5h 45m
$384
Showing 1-10 of 20 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
TYS-PHL
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
Prices
Airlines
How far ahead should I book a flight from Knoxville to Philadelphia?
To ensure you get the cheapest price possible for a flight from Knoxville to Philadelphia, you should look to book at least 21 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 $157). Flying from Knoxville to Philadelphia in April is currently the most expensive (average of $585). 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 4, 2026.
It’s optimal to fly from Knoxville to Philadelphia in the evening. By choosing this option you can save up to 50% 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 4, 2026.
Read through reviews of airlines operating flights from Knoxville to Philadelphia, such as Allegiant Air and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
5.9
Overall
7.3
Boarding
7.7
Comfort
6.9
Crew
8.1
Entertainment
5.4
Reviews
1 / 20
2.0
MediocreNic,Aug 2026
SRQ - ALB
Food
5.9
Overall
7.3
Boarding
7.7
Comfort
6.9
Crew
8.1
Entertainment
5.4
Reviews
1 / 20
2.0
MediocreNic,Aug 2026
SRQ - ALB
Food
5.9
Overall
7.3
Boarding
7.7
Comfort
6.9
Crew
8.1
Entertainment
5.4
Reviews
1 / 20
2.0
MediocreNic,Aug 2026
SRQ - ALB
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.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
Reading
King of Prussia
Camden
Wildwood Crest
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland
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Knoxville and Philadelphia flights
Browse other Knoxville and Philadelphia flight options. Last updated on September 4, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$113 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$379 | Average$513 | FlexibilityNo cancel fee | On-time71% |