$38+ Cheap flights from Philadelphia to Knoxville (PHL - TYS)
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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — TYS
May 23 — May 301
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Knoxville 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 Philadelphia to Knoxville McGhee Tyson are usually found in July or September, booked 65 days in advance, depart on a Saturday or Wednesday and return on a Friday
Cheap flight deals from Philadelphia to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to KnoxvilleExplore the most affordable flight options available from Philadelphia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
Explore the most affordable flight options available from Philadelphia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/216:53 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Sun 5/243:46 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/18![Allegiant Air logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 8/214:35 pm
PHL
- TYS
Nonstop2h 00m
Allegiant Air
Mon 8/241:55 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Thu 5/211:03 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 6/116:27 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Sun 6/143:46 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 7/306:18 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Thu 8/62:56 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sun 6/146:26 pm
PHL
- TYS
Nonstop2h 03m
Multiple Airlines
Tue 6/165:02 pm
TYS
- PHL
1 stop7h 42m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/116:00 am
PHL
- TYS
1 stop8h 57m
Multiple Airlines
Thu 6/184:05 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 10/127:21 pm
PHL
- TYS
Nonstop2h 00m
Allegiant Air
Fri 10/163:54 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Thu 6/43:47 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Sun 6/216:45 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Sun 6/284:05 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$151
Best flights from Philadelphia to KnoxvilleDiscover carefully curated flight deals from Philadelphia to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
Discover carefully curated flight deals from Philadelphia to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:55 am
PHL
- TYS
1 stop6h 00m
Southwest
Tue 9/18:00 am
TYS
- PHL
2 stops9h 35m
Southwest
Deal found 4/20![Southwest logo]()
$270
This Delta deal was found by Cheapflights users on 4/22. 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.
Sat 9/198:25 am
PHL
- TYS
1 stop6h 42m
Delta
Sat 9/268:47 am
TYS
- PHL
1 stop6h 16m
Delta
Deal found 4/22![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 4/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:05 am
PHL
- TYS
1 stop4h 00m
Delta
Sat 8/110:26 am
TYS
- PHL
1 stop6h 41m
Delta
Deal found 4/18![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 4/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3011:25 am
PHL
- TYS
2 stops8h 55m
Southwest
Sun 7/57:00 pm
TYS
- PHL
1 stop5h 10m
Southwest
Deal found 4/19![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 4/22. 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.
Thu 6/1112:50 pm
PHL
- TYS
2 stops8h 20m
Southwest
Sun 6/147:00 pm
TYS
- PHL
1 stop5h 10m
Southwest
Deal found 4/22![Southwest logo]()
$418
This Delta deal was found by Cheapflights users on 4/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 am
PHL
- TYS
1 stop4h 14m
Delta
Sat 10/177:07 am
TYS
- PHL
1 stop3h 55m
Delta
Deal found 4/19![Delta logo]()
$429
This Southwest deal was found by Cheapflights users on 4/22. 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.
Sat 6/2711:25 am
PHL
- TYS
2 stops8h 10m
Southwest
Sat 7/47:00 am
TYS
- PHL
2 stops8h 10m
Southwest
Deal found 4/22![Southwest logo]()
$437
This Delta deal was found by Cheapflights users on 4/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:30 am
PHL
- TYS
1 stop3h 41m
Delta
Sun 9/205:30 am
TYS
- PHL
1 stop3h 58m
Delta
Deal found 4/18![Delta logo]()
$481
This Southwest deal was found by Cheapflights users on 4/21. 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 7/2612:25 pm
PHL
- TYS
2 stops8h 50m
Southwest
Sun 8/212:45 pm
TYS
- PHL
2 stops11h 25m
Southwest
Deal found 4/21![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2111:10 am
PHL
- TYS
2 stops9h 10m
Southwest
Sat 5/235:40 pm
TYS
- PHL
1 stop3h 55m
Southwest
Deal found 4/20![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 4/21. 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 7/1911:30 am
PHL
- TYS
2 stops9h 45m
Southwest
Sat 7/257:00 am
TYS
- PHL
2 stops10h 25m
Southwest
Deal found 4/21![Southwest logo]()
$497
Last-minute flights from Philadelphia to KnoxvilleDiscover last-minute flight deals from Philadelphia to Knoxville. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Knoxville. Data last updated April 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Sun 5/176:00 am
PHL
- TYS
1 stop14h 50m
Multiple Airlines
Thu 6/43:47 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/185:05 am
PHL
- TYS
1 stop12h 25m
Multiple Airlines
Thu 6/43:47 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/185:05 am
PHL
- TYS
1 stop12h 25m
Multiple Airlines
Sun 6/73:46 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Thu 5/211:03 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Thu 6/43:47 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Sun 6/73:46 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/206:45 am
PHL
- TYS
1 stop11h 14m
Multiple Airlines
Sun 5/243:46 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/216:53 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Sun 5/243:46 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/18![Allegiant Air logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/216:53 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Thu 5/283:46 pm
TYS
- PHL
Nonstop1h 50m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/289:16 pm
PHL
- TYS
1 stop26h 21m
Multiple Airlines
Sun 5/313:46 pm
TYS
- PHL
Nonstop1h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$168
One-way flights from Philadelphia to KnoxvilleSearch for one-way flight options from Philadelphia to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
Search for one-way flight options from Philadelphia to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Sun 7/196:18 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$38
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sun 5/246:26 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$39
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 6/186:45 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$41
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 7/166:18 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$51
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sun 6/76:26 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sun 6/286:45 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Sun 7/126:18 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/216:53 pm
PHL
- TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Tue 5/126:45 am
PHL
- TYS
1 stop27h 51m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$85
Find flight deals from Philadelphia to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Knoxville (TYS). 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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $124 (Kiwi.com) |
One-way from | $38 (Kiwi.com) |
Popular in | January |
Cheapest in | July |
Average price | $499 |
Good round-trip deal | $178 or less |
Good one-way deal | $257 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Knoxville 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 April 23, 2026.
Use the filters below to find and compare flights from Philadelphia to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Thu 8/27
5:55 am-11:55 am
1 stop6h 00m
Knoxville McGhee Tyson
Tue 9/1
8:00 am-5:35 pm
2 stops9h 35m
$270
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Sat 9/19
8:25 am-3:07 pm
1 stop6h 42m
Knoxville McGhee Tyson
Sat 9/26
8:47 am-3:03 pm
1 stop6h 16m
$399
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Sat 7/25
6:05 am-10:05 am
1 stop4h 00m
Knoxville McGhee Tyson
Sat 8/1
10:26 am-5:07 pm
1 stop6h 41m
$399
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Tue 6/30
11:25 am-8:20 pm
2 stops8h 55m
Knoxville McGhee Tyson
Sun 7/5
7:00 pm-12:10 am
1 stop5h 10m
$402
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Thu 6/11
12:50 pm-9:10 pm
2 stops8h 20m
Knoxville McGhee Tyson
Sun 6/14
7:00 pm-12:10 am
1 stop5h 10m
$418
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Sat 10/10
6:00 am-10:14 am
1 stop4h 14m
Knoxville McGhee Tyson
Sat 10/17
7:07 am-11:02 am
1 stop3h 55m
$429
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Sat 6/27
11:25 am-7:35 pm
2 stops8h 10m
Knoxville McGhee Tyson
Sat 7/4
7:00 am-3:10 pm
2 stops8h 10m
$437
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Sun 7/26
12:25 pm-9:15 pm
2 stops8h 50m
Knoxville McGhee Tyson
Sun 8/2
12:45 pm-12:10 am
2 stops11h 25m
$453
Quickest round-trip
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Thu 9/17
5:30 am-9:11 am
1 stop3h 41m
Knoxville McGhee Tyson
Sun 9/20
5:30 am-9:28 am
1 stop3h 58m
$481
PhiladelphiaKnoxville
PHL - TYS
PHLTYS
Philadelphia
Thu 5/21
11:10 am-8:20 pm
2 stops9h 10m
Knoxville McGhee Tyson
Sat 5/23
5:40 pm-9:35 pm
1 stop3h 55m
$482
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Knoxville
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 Philadelphia to Knoxville in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Knoxville 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 Philadelphia-Knoxville 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 Philadelphia to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Philadelphia with our price prediction graph.
PHL-TYS
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 Philadelphia to Knoxville
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Airlines
How far ahead should I book a flight from Philadelphia to Knoxville?
To ensure you get the cheapest price possible for a flight from Philadelphia to Knoxville, you should look to book at least 64 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 Philadelphia to Knoxville?
Currently, July is the cheapest month in which you can book a flight from Philadelphia to Knoxville (average of $423). Flying from Philadelphia to Knoxville in January is currently the most expensive (average of $549). 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 PHL to TYS?
Find hourly flight availability from Philadelphia to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.
It’s optimal to fly from Philadelphia to Knoxville in the afternoon. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight in the evening.
What is the cheapest day to fly from Philadelphia to Knoxville?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Knoxville. Price data was last updated on April 18, 2026.
Travelers seeking maximum savings on their Philadelphia to Knoxville flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated April 23, 2026.
Read through reviews of airlines operating flights from Philadelphia to Knoxville, such as Southwest,Delta, andAllegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Knoxville. 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 Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Alcoa
Murphy
Oak Ridge
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Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 23, 2026.
Philadelphia and Knoxville flights
Browse other Philadelphia and Knoxville flight options. Last updated on April 23, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on April 23, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Philadelphia to Knoxville
Discover the top 4 airlines that operate flights from Philadelphia to Knoxville. 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 April 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$108 | Average$131 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$538 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$290 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$359 | Average$481 | FlexibilityNo cancel fee | On-time71% |