$105+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
May 17 — May 241
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 Friday
Cheap flight deals from Phoenix to Knoxville
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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 April 17, 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 April 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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.
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/162:51 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 4/17![Allegiant Air logo]()
$151
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 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 4/16![Allegiant Air logo]()
$157
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Thu 9/172:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 4/16![Allegiant Air logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 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
Sun 8/92:51 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 4/16![Allegiant Air logo]()
$181
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 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 4/16![Allegiant Air logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 9/34:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Sun 9/62:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 4/14![Allegiant Air logo]()
$197
This CheapOair deal was found by Cheapflights users on 4/13. 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 5/115:15 am
PHX
- TYS
1 stop11h 18m
Frontier
Fri 5/158:32 pm
TYS
- PHX
1 stop16h 33m
Frontier
Deal found 4/13![Frontier logo]()
$216
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 7/164:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 7/192:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Deal found 4/14![Allegiant Air logo]()
$217
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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.
Thu 9/104:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Sun 9/132:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 4/17![Allegiant Air logo]()
$218
This CheapOair deal was found by Cheapflights users on 4/14. 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.
Sat 4/259:24 pm
PHX
- TYS
1 stop15h 09m
Frontier
Thu 4/304:28 pm
TYS
- PHX
1 stop18h 08m
Frontier
Deal found 4/14![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/79:56 am
PHX
- TYS
Nonstop3h 24m
Multiple Airlines
Mon 5/188:32 pm
TYS
- PHX
1 stop29h 57m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$240
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 April 17, 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 April 17, 2026.
This Southwest deal was found by Cheapflights users on 4/14. 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 6/28:10 am
PHX
- TYS
2 stops8h 30m
Southwest
Tue 6/96:55 pm
TYS
- PHX
1 stop7h 15m
Southwest
Deal found 4/14![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 6/225:45 am
PHX
- TYS
1 stop6h 04m
Delta
Fri 6/265:40 am
TYS
- PHX
1 stop6h 31m
Delta
Deal found 4/17![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:31 pm
PHX
- TYS
1 stop6h 07m
United Airlines
Wed 9/25:45 am
TYS
- PHX
2 stops11h 38m
United Airlines
Deal found 4/17![United Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 4/13. 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 5/247:10 am
PHX
- TYS
2 stops8h 35m
Southwest
Thu 5/286:35 am
TYS
- PHX
2 stops9h 05m
Southwest
Deal found 4/13![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 4/14. 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 5/319:45 am
PHX
- TYS
2 stops8h 20m
Southwest
Thu 6/47:45 pm
TYS
- PHX
1 stop7h 25m
Southwest
Deal found 4/14![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/711:47 pm
PHX
- TYS
1 stop8h 02m
United Airlines
Tue 5/127:00 am
TYS
- PHX
2 stops10h 28m
United Airlines
Deal found 4/16![United Airlines logo]()
$498
This Southwest deal was found by Cheapflights users on 4/12. 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 6/238:10 am
PHX
- TYS
2 stops9h 10m
Southwest
Sat 6/276:55 pm
TYS
- PHX
1 stop7h 35m
Southwest
Deal found 4/12![Southwest logo]()
$433
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:06 am
PHX
- TYS
2 stops11h 29m
United Airlines
Mon 7/275:55 pm
TYS
- PHX
1 stop8h 29m
United Airlines
Deal found 4/15![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 4/14. 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 6/1912:45 pm
PHX
- TYS
1 stop5h 25m
Southwest
Sun 6/217:00 pm
TYS
- PHX
1 stop8h 15m
Southwest
Deal found 4/14![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:30 am
PHX
- TYS
2 stops10h 00m
Southwest
Sat 5/306:40 am
TYS
- PHX
2 stops7h 20m
Southwest
Deal found 4/16![Southwest logo]()
$507
Last-minute flights from Phoenix to KnoxvilleDiscover last-minute flight deals from Phoenix to Knoxville. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Knoxville. Data last updated April 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 am
PHX
- TYS
1 stop5h 43m
Frontier
Sun 4/264:28 pm
TYS
- PHX
1 stop6h 42m
Frontier
Deal found 4/13![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 4/239:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Thu 4/308:00 am
TYS
- PHX
Nonstop4h 06m
Allegiant Air
Deal found 4/14![Allegiant Air logo]()
$245
This Frontier deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:50 am
PHX
- TYS
1 stop5h 43m
Frontier
Sun 4/264:28 pm
TYS
- PHX
1 stop6h 42m
Frontier
Deal found 4/14![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 4/239:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Sun 4/268:00 am
TYS
- PHX
Nonstop4h 06m
Allegiant Air
Deal found 4/14![Allegiant Air logo]()
$263
This CheapOair deal was found by Cheapflights users on 4/14. 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.
Sat 4/259:24 pm
PHX
- TYS
1 stop15h 09m
Frontier
Thu 4/304:28 pm
TYS
- PHX
1 stop18h 08m
Frontier
Deal found 4/14![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/79:56 am
PHX
- TYS
Nonstop3h 24m
Multiple Airlines
Mon 5/188:32 pm
TYS
- PHX
1 stop29h 57m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/79:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Thu 5/148:00 am
TYS
- PHX
Nonstop4h 06m
Allegiant Air
Deal found 4/13![Allegiant Air logo]()
$242
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 5/79:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Sun 5/108:00 am
TYS
- PHX
Nonstop4h 06m
Allegiant Air
Deal found 4/14![Allegiant Air logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/1012:29 pm
PHX
- TYS
2 stops26h 01m
Multiple Airlines
Thu 5/282:49 pm
TYS
- PHX
Nonstop4h 10m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$266
This CheapOair deal was found by Cheapflights users on 4/13. 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 5/115:15 am
PHX
- TYS
1 stop11h 18m
Frontier
Fri 5/158:32 pm
TYS
- PHX
1 stop16h 33m
Frontier
Deal found 4/13![Frontier logo]()
$216
This CheapOair deal was found by Cheapflights users on 4/13. 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 5/115:15 am
PHX
- TYS
1 stop11h 18m
Frontier
Mon 5/188:32 pm
TYS
- PHX
1 stop21h 51m
Frontier
Deal found 4/13![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/241:05 pm
PHX
- TYS
2 stops27h 19m
Multiple Airlines
Thu 5/282:49 pm
TYS
- PHX
Nonstop4h 10m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$250
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 April 17, 2026.
Search for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Super.com deal was found by Cheapflights users on 4/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:24 pm
PHX
- TYS
1 stop15h 09m
Frontier
Deal found 4/15![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/299:15 am
PHX
- TYS
1 stop10h 27m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$108
This CheapOair deal was found by Cheapflights users on 4/14. 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 5/144:17 pm
PHX
- TYS
1 stop24h 16m
Frontier
Deal found 4/14![Frontier logo]()
$117
This Priceline deal was found by Cheapflights users on 4/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:40 am
PHX
- TYS
1 stop7h 53m
Frontier
Deal found 4/12![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:50 am
PHX
- TYS
1 stop5h 43m
Frontier
Deal found 4/17![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/1511:30 pm
PHX
- TYS
2 stops37h 11m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Wed 5/276:51 pm
PHX
- TYS
2 stops20h 46m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$133
This CheapOair deal was found by Cheapflights users on 4/14. 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 6/254:43 pm
PHX
- TYS
1 stop23h 54m
Frontier
Deal found 4/14![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Sat 5/24:43 pm
PHX
- TYS
2 stops24h 52m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares 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
Deal found 4/16![Allegiant Air logo]()
$140
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 April 17, 2026.
Round-trip from | $151 (Cheapflightsfares) |
|---|---|
One-way from | $105 (Super.com) |
Popular in | April |
Cheapest in | February |
Average price | $398 |
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 April 17, 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
Tue 6/2
8:10 am-7:40 pm
2 stops8h 30m
Knoxville McGhee Tyson
Tue 6/9
6:55 pm-11:10 pm
1 stop7h 15m
$353
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sun 5/24
7:10 am-6:45 pm
2 stops8h 35m
Knoxville McGhee Tyson
Thu 5/28
6:35 am-12:40 pm
2 stops9h 05m
$408
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sun 5/31
9:45 am-9:05 pm
2 stops8h 20m
Knoxville McGhee Tyson
Thu 6/4
7:45 pm-12:10 am
1 stop7h 25m
$417
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Mon 6/22
5:45 am-2:49 pm
1 stop6h 04m
Knoxville McGhee Tyson
Fri 6/26
5:40 am-9:11 am
1 stop6h 31m
$419
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Tue 6/23
8:10 am-8:20 pm
2 stops9h 10m
Knoxville McGhee Tyson
Sat 6/27
6:55 pm-11:30 pm
1 stop7h 35m
$433
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Fri 6/19
12:45 pm-9:10 pm
1 stop5h 25m
Knoxville McGhee Tyson
Sun 6/21
7:00 pm-12:15 am
1 stop8h 15m
$453
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 8/26
1:31 pm-10:38 pm
1 stop6h 07m
Knoxville McGhee Tyson
Wed 9/2
5:45 am-2:23 pm
2 stops11h 38m
$459
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 5/7
11:47 pm-10:49 am
1 stop8h 02m
Knoxville McGhee Tyson
Tue 5/12
7:00 am-2:28 pm
2 stops10h 28m
$498
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 7/22
10:06 am-12:35 am
2 stops11h 29m
Knoxville McGhee Tyson
Mon 7/27
5:55 pm-11:24 pm
1 stop8h 29m
$504
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 5/23
5:30 am-6:30 pm
2 stops10h 00m
Knoxville McGhee Tyson
Sat 5/30
6:40 am-11:00 am
2 stops7h 20m
$507
Showing 1-10 of 21 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
How far ahead should I book a flight from Phoenix to Knoxville?
Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Knoxville. Price data was last updated on April 10, 2026.
Booking 73 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.
What is the cheapest month to book a flight from Phoenix to Knoxville?
Currently, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $66). 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?
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 17, 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
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
Corbin
Morristown
Bryson City
Alcoa
Murphy
Oak Ridge
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Alternative routes for Phoenix to Knoxville
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Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Knoxville by cabin class
Find flights from Phoenix to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 17, 2026.
Phoenix and Knoxville flights
Browse other Phoenix and Knoxville flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Phoenix to Knoxville
Discover the top 5 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$230 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$170 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$250 | Average$398 | FlexibilityNo cancel fee | On-time71% |