$84+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Aug 11 — Aug 181
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
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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 Monday or Wednesday 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 July 12, 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 July 12, 2026.
This Booking.com deal was found by Cheapflights users on 7/11. 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.
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/11![Allegiant Air logo]()
$119
This CheapOair deal was found by Cheapflights users on 7/8. 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.
Sun 8/164:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$137
This CheapOair deal was found by Cheapflights users on 7/10. 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.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$147
This Mytrip deal was found by Cheapflights users on 7/7. 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.
Sat 10/33:38 pm
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Mon 10/56:40 am
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/7![Allegiant Air logo]()
$158
This Cheapflightsfares deal was found by Cheapflights users on 7/11. 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 10/253:43 pm
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Sun 11/11:52 pm
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/11![Allegiant Air logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 7/8. 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.
Mon 10/199:11 am
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Thu 10/291:52 pm
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 7/8. 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 12/35:03 pm
PHX
- TYS
Nonstop3h 29m
Allegiant Air
Sun 12/61:58 pm
TYS
- PHX
Nonstop4h 15m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 7/9. 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 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/133:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 7/10. 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 10/223:43 pm
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Sun 11/11:52 pm
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$179
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 July 12, 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 July 12, 2026.
This Delta deal was found by Cheapflights users on 7/9. 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 10/13:16 pm
PHX
- TYS
1 stop5h 39m
Delta
Wed 10/76:57 pm
TYS
- PHX
1 stop7h 24m
Delta
Deal found 7/9![Delta logo]()
$255
This Southwest deal was found by Cheapflights users on 7/9. 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 9/18:20 am
PHX
- TYS
2 stops7h 35m
Southwest
Tue 9/157:00 am
TYS
- PHX
2 stops8h 30m
Southwest
Deal found 7/9![Southwest logo]()
$265
This American Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 8/201:48 pm
PHX
- TYS
1 stop6h 10m
American Airlines
Mon 8/245:33 pm
TYS
- PHX
1 stop7h 21m
American Airlines
Deal found 7/11![American Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 10/111:52 pm
PHX
- TYS
1 stop6h 53m
United Airlines
Tue 10/61:55 pm
TYS
- PHX
1 stop7h 43m
United Airlines
Deal found 7/11![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 7/9. 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 8/139:50 pm
PHX
- TYS
2 stops12h 35m
Southwest
Thu 8/204:50 pm
TYS
- PHX
1 stop7h 45m
Southwest
Deal found 7/9![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 7/10. 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 9/36:00 am
PHX
- TYS
1 stop8h 42m
Delta
Mon 9/145:28 pm
TYS
- PHX
1 stop6h 47m
Delta
Deal found 7/10![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 7/6. 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 8/46:15 am
PHX
- TYS
1 stop5h 05m
Southwest
Tue 8/111:55 pm
TYS
- PHX
2 stops9h 25m
Southwest
Deal found 7/6![Southwest logo]()
$300
This Southwest deal was found by Cheapflights users on 7/10. 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
Mon 8/245:45 pm
TYS
- PHX
2 stops7h 10m
Southwest
Deal found 7/10![Southwest logo]()
$340
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 8/2012:15 pm
PHX
- TYS
1 stop6h 30m
United Airlines
Mon 8/247:00 am
TYS
- PHX
2 stops14h 00m
United Airlines
Deal found 7/11![United Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 9/286:40 pm
PHX
- TYS
2 stops12h 05m
United Airlines
Fri 10/26:00 am
TYS
- PHX
2 stops12h 00m
United Airlines
Deal found 7/7![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/269:00 am
PHX
- TYS
1 stop8h 53m
United Airlines
Wed 9/29:45 am
TYS
- PHX
2 stops13h 39m
United Airlines
Deal found 7/7![United Airlines logo]()
$504
Last-minute flights from Phoenix to KnoxvilleDiscover last-minute flight deals from Phoenix to Knoxville. Data last updated July 12, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Knoxville. Data last updated July 12, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 7/10. 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.
Thu 7/304:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/22:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$202
This Cheapflightsfares deal was found by Cheapflights users on 7/9. 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 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/133:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/124:49 pm
PHX
- TYS
2 stops40h 28m
Multiple Airlines
Sun 8/162:51 pm
TYS
- PHX
Nonstop4h 10m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$199
This Booking.com deal was found by Cheapflights users on 7/11. 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.
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/11![Allegiant Air logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Mon 8/176:30 am
TYS
- PHX
2 stops19h 57m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/138:40 am
PHX
- TYS
2 stops24h 37m
Multiple Airlines
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$200
This CheapOair deal was found by Cheapflights users on 7/8. 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.
Sun 8/164:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/164:51 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Sun 8/237:00 am
TYS
- PHX
1 stop27h 40m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$195
This CheapOair deal was found by Cheapflights users on 7/10. 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.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$147
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 July 12, 2026.
Search for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/94:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$84
This CheapOair deal was found by Cheapflights users on 7/8. 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.
Thu 8/274:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 7/9![Allegiant Air logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 10/39:06 am
PHX
- TYS
1 stop25h 05m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/108:40 am
PHX
- TYS
1 stop7h 44m
Frontier
Deal found 7/9![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/116:53 pm
PHX
- TYS
1 stop21h 31m
Frontier
Deal found 7/10![Frontier logo]()
$107
This Super.com deal was found by Cheapflights users on 7/10. 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 Super.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 7/10![Allegiant Air logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/226:57 pm
PHX
- TYS
1 stop15h 52m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/278:35 am
PHX
- TYS
2 stops26h 26m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$118
This Expedia deal was found by Cheapflights users on 7/10. 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.
Sun 8/304:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$127
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 July 12, 2026.
Round-trip from | $119 (Booking.com) |
|---|---|
One-way from | $84 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $319 |
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 July 12, 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
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 10/1
3:16 pm-11:55 pm
1 stop5h 39m
Knoxville McGhee Tyson
Wed 10/7
6:57 pm-11:21 pm
1 stop7h 24m
$255
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Tue 9/1
8:20 am-6:55 pm
2 stops7h 35m
Knoxville McGhee Tyson
Tue 9/15
7:00 am-12:30 pm
2 stops8h 30m
$265
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/13
9:50 pm-1:25 pm
2 stops12h 35m
Knoxville McGhee Tyson
Thu 8/20
4:50 pm-9:35 pm
1 stop7h 45m
$277
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Tue 8/4
6:15 am-2:20 pm
1 stop5h 05m
Knoxville McGhee Tyson
Tue 8/11
1:55 pm-8:20 pm
2 stops9h 25m
$300
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
1:48 pm-10:58 pm
1 stop6h 10m
Knoxville McGhee Tyson
Mon 8/24
5:33 pm-9:54 pm
1 stop7h 21m
$311
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 9/3
6:00 am-5:42 pm
1 stop8h 42m
Knoxville McGhee Tyson
Mon 9/14
5:28 pm-9:15 pm
1 stop6h 47m
$327
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 8/22
6:15 am-5:40 pm
2 stops8h 25m
Knoxville McGhee Tyson
Mon 8/24
5:45 pm-9:55 pm
2 stops7h 10m
$340
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 10/1
11:52 pm-9:45 am
1 stop6h 53m
Knoxville McGhee Tyson
Tue 10/6
1:55 pm-6:38 pm
1 stop7h 43m
$344
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
12:15 pm-9:45 pm
1 stop6h 30m
Knoxville McGhee Tyson
Mon 8/24
7:00 am-6:00 pm
2 stops14h 00m
$416
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Mon 9/28
6:40 pm-9:45 am
2 stops12h 05m
Knoxville McGhee Tyson
Fri 10/2
6:00 am-3:00 pm
2 stops12h 00m
$449
Showing 1-10 of 23 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 69 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 July 12, 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.
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Food
7.2
Comfort
7.8
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
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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 July 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$120 | Average$245 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$199 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$234 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$438 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$350 | Average$481 | FlexibilityNo cancel fee | On-time63% |