$92+ Cheap flights from Phoenix to Knoxville (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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Jun 19 — Jun 261
Round-trip
1 adult, Economy
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Find cheap flights from Phoenix 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 Phoenix to Knoxville McGhee Tyson are usually found in February or January, booked 73 days in advance, depart on a Wednesday or Monday and return on a Thursday
Cheap flight deals from Phoenix to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Phoenix to KnoxvilleExplore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
Explore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/302:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$151
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 11/54:30 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 11/812:29 pm
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/134:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Sun 9/202:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 5/17![Allegiant Air logo]()
$202
This Mytrip deal was found by Cheapflights users on 5/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/92:51 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$209
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/64:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Sun 9/132:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$213
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:51 am
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Sun 10/46:00 am
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 5/18![Allegiant Air logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 8/187:50 pm
PHX
- TYS
2 stops38h 59m
Multiple Airlines
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$220
Best flights from Phoenix to KnoxvilleDiscover carefully curated flight deals from Phoenix to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
Discover carefully curated flight deals from Phoenix to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
This Delta deal was found by Cheapflights users on 5/17. 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 8/201:58 pm
PHX
- TYS
1 stop6h 02m
Delta
Mon 8/246:12 pm
TYS
- PHX
1 stop7h 29m
Delta
Deal found 5/17![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 5/17. 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 8/226:15 am
PHX
- TYS
2 stops8h 25m
Southwest
Wed 8/261:55 pm
TYS
- PHX
2 stops9h 25m
Southwest
Deal found 5/17![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 5/16. 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 8/116:00 am
PHX
- TYS
2 stops11h 53m
United Airlines
Tue 8/184:50 pm
TYS
- PHX
1 stop6h 34m
United Airlines
Deal found 5/16![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 5/16. 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.
Wed 7/2210:48 am
PHX
- TYS
1 stop7h 50m
Delta
Mon 7/273:59 pm
TYS
- PHX
1 stop8h 52m
Delta
Deal found 5/16![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 5/17. 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 8/2010:19 am
PHX
- TYS
1 stop6h 51m
Delta
Sun 8/236:12 pm
TYS
- PHX
1 stop7h 29m
Delta
Deal found 5/17![Delta logo]()
$383
This Southwest deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:00 am
PHX
- TYS
2 stops6h 55m
Southwest
Mon 9/147:10 am
TYS
- PHX
2 stops8h 55m
Southwest
Deal found 5/15![Southwest logo]()
$422
This Southwest deal was found by Cheapflights users on 5/19. 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.
Wed 8/198:20 am
PHX
- TYS
2 stops7h 35m
Southwest
Sun 8/237:35 am
TYS
- PHX
2 stops8h 20m
Southwest
Deal found 5/19![Southwest logo]()
$423
This Delta deal was found by Cheapflights users on 5/19. 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.
Thu 7/2311:59 pm
PHX
- TYS
1 stop6h 37m
Delta
Mon 7/275:40 am
TYS
- PHX
1 stop6h 21m
Delta
Deal found 5/19![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 5/19. 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 9/89:00 am
PHX
- TYS
2 stops6h 55m
Southwest
Mon 9/147:10 am
TYS
- PHX
2 stops7h 45m
Southwest
Deal found 5/19![Southwest logo]()
$438
This Delta deal was found by Cheapflights users on 5/17. 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 11/63:58 pm
PHX
- TYS
1 stop5h 48m
Delta
Sun 11/87:20 pm
TYS
- PHX
1 stop6h 46m
Delta
Deal found 5/17![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 5/19. 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.
Fri 7/3111:35 am
PHX
- TYS
2 stops6h 35m
Southwest
Sun 8/27:00 pm
TYS
- PHX
2 stops8h 10m
Southwest
Deal found 5/19![Southwest logo]()
$438
Last-minute flights from Phoenix to KnoxvilleDiscover last-minute flight deals from Phoenix to Knoxville. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Knoxville. Data last updated May 20, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 5/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:15 am
PHX
- TYS
1 stop11h 09m
Frontier
Mon 6/18:32 pm
TYS
- PHX
1 stop16h 33m
Frontier
Deal found 5/16![Frontier logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Mon 6/811:26 am
PHX
- TYS
2 stops53h 11m
Frontier
Mon 6/228:32 pm
TYS
- PHX
1 stop16h 44m
Frontier
Deal found 5/18![Frontier logo]()
$306
This Booking.com deal was found by Cheapflights users on 5/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:53 pm
PHX
- TYS
1 stop23h 44m
Frontier
Wed 6/248:32 pm
TYS
- PHX
1 stop14h 13m
Frontier
Deal found 5/16![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Wed 6/1010:32 pm
PHX
- TYS
2 stops34h 27m
Multiple Airlines
Wed 6/178:32 pm
TYS
- PHX
1 stop14h 13m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 5/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:10 am
PHX
- TYS
1 stop8h 33m
American Airlines
Tue 6/235:33 pm
TYS
- PHX
1 stop6h 35m
American Airlines
Deal found 5/19![American Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/184:43 pm
PHX
- TYS
2 stops27h 10m
Multiple Airlines
Thu 6/252:42 pm
TYS
- PHX
Nonstop3h 48m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Fri 6/199:15 am
PHX
- TYS
1 stop10h 38m
Multiple Airlines
Sun 6/287:00 am
TYS
- PHX
1 stop27h 45m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$359
This Cheapflightsfares deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/214:20 pm
PHX
- TYS
Nonstop3h 32m
Allegiant Air
Sun 6/282:42 pm
TYS
- PHX
Nonstop3h 48m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$289
This Booking.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/214:43 pm
PHX
- TYS
1 stop23h 54m
Multiple Airlines
Sun 6/282:42 pm
TYS
- PHX
Nonstop3h 48m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$351
This Booking.com deal was found by Cheapflights users on 5/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:40 am
PHX
- TYS
1 stop9h 57m
Frontier
Mon 6/298:32 pm
TYS
- PHX
1 stop16h 44m
Frontier
Deal found 5/18![Frontier logo]()
$369
One-way flights from Phoenix to KnoxvilleSearch for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
Search for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/18![Allegiant Air logo]()
$92
This Cheapflightsfares deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$100
This Booking.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/234:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 8/24:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/16![Allegiant Air logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/18![Allegiant Air logo]()
$108
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/54:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/194:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/96:53 pm
PHX
- TYS
1 stop21h 44m
Frontier
Deal found 5/16![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 5/18. 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.
Sat 8/156:53 pm
PHX
- TYS
1 stop16h 08m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 8/2010:27 pm
PHX
- TYS
1 stop20h 19m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$147
Find flight deals from Phoenix to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 May 20, 2026.
Round-trip from | $151 (Cheapflightsfares) |
|---|---|
One-way from | $92 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $384 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix 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 May 20, 2026.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
1:58 pm-11:00 pm
1 stop6h 02m
Knoxville McGhee Tyson
Mon 8/24
6:12 pm-10:41 pm
1 stop7h 29m
$367
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 7/22
10:48 am-9:38 pm
1 stop7h 50m
Knoxville McGhee Tyson
Mon 7/27
3:59 pm-9:51 pm
1 stop8h 52m
$374
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
10:19 am-8:10 pm
1 stop6h 51m
Knoxville McGhee Tyson
Sun 8/23
6:12 pm-10:41 pm
1 stop7h 29m
$383
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 8/22
6:15 am-5:40 pm
2 stops8h 25m
Knoxville McGhee Tyson
Wed 8/26
1:55 pm-8:20 pm
2 stops9h 25m
$384
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 7/23
11:59 pm-9:36 am
1 stop6h 37m
Knoxville McGhee Tyson
Mon 7/27
5:40 am-9:01 am
1 stop6h 21m
$399
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Fri 11/6
3:58 pm-11:46 pm
1 stop5h 48m
Knoxville McGhee Tyson
Sun 11/8
7:20 pm-12:06 am
1 stop6h 46m
$399
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 9/9
9:00 am-6:55 pm
2 stops6h 55m
Knoxville McGhee Tyson
Mon 9/14
7:10 am-1:05 pm
2 stops8h 55m
$422
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 8/19
8:20 am-6:55 pm
2 stops7h 35m
Knoxville McGhee Tyson
Sun 8/23
7:35 am-12:55 pm
2 stops8h 20m
$423
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Tue 9/8
9:00 am-6:55 pm
2 stops6h 55m
Knoxville McGhee Tyson
Mon 9/14
7:10 am-11:55 am
2 stops7h 45m
$438
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Fri 7/31
11:35 am-9:10 pm
2 stops6h 35m
Knoxville McGhee Tyson
Sun 8/2
7:00 pm-12:10 am
2 stops8h 10m
$438
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Phoenix with our price prediction graph.
PH1-TYS
PHX-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 Phoenix to Knoxville
PH1-TYS
PHX-TYS
What is the cheapest month to book a flight from Phoenix to Knoxville?
Currently, September is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $63). Flying from Phoenix to Knoxville in March is currently the most expensive (average of $190). 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.
How much does it cost to fly round-trip from Phoenix to Knoxville?
How far ahead should I book a flight from Phoenix to Knoxville?
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 May 20, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air from Phoenix to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Phoenix 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
Murphy
Alcoa
Oak Ridge
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Top 6 airlines flying from Phoenix to Knoxville
Discover the top 6 airlines that operate flights from Phoenix 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 May 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$113 | Average$243 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$199 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$239 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$261 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$350 | Average$481 | FlexibilityNo cancel fee | On-time63% |