$83+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Jul 27 — Aug 31
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 Friday 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 June 27, 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 June 27, 2026.
This CheapOair deal was found by Cheapflights users on 6/26. 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 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 6/26![Allegiant Air logo]()
$129
This CheapOair deal was found by Cheapflights users on 6/24. 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 6/24![Allegiant Air logo]()
$155
This Booking.com deal was found by Cheapflights users on 6/22. 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 Booking.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
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 6/22![Allegiant Air logo]()
$163
This Cheapflightsfares deal was found by Cheapflights users on 6/23. 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 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 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 6/23![Allegiant Air logo]()
$169
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 6/25![Allegiant Air logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/94:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/133:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 6/22![Allegiant Air logo]()
$181
This Mytrip deal was found by Cheapflights users on 6/22. 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 Mytrip 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 6/22![Allegiant Air logo]()
$188
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 June 27, 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 June 27, 2026.
This Delta deal was found by Cheapflights users on 6/26. 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.
Tue 10/611:10 pm
PHX
- TYS
1 stop8h 04m
Delta
Tue 10/135:30 am
TYS
- PHX
1 stop6h 57m
Delta
Deal found 6/26![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 6/26. 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 8/86:00 am
PHX
- TYS
1 stop10h 20m
Southwest
Wed 8/121:55 pm
TYS
- PHX
2 stops8h 00m
Southwest
Deal found 6/26![Southwest logo]()
$321
This United Airlines deal was found by Cheapflights users on 6/25. 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 6/25![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 6/22. 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 9/56:00 am
PHX
- TYS
1 stop10h 20m
Southwest
Sat 9/126:50 am
TYS
- PHX
2 stops8h 50m
Southwest
Deal found 6/22![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:05 pm
PHX
- TYS
1 stop8h 15m
Delta
Fri 8/288:35 am
TYS
- PHX
1 stop6h 33m
Delta
Deal found 6/23![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 6/25. 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 7/2210:14 am
PHX
- TYS
1 stop5h 37m
Delta
Mon 7/273:59 pm
TYS
- PHX
1 stop8h 49m
Delta
Deal found 6/25![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 6/25. 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 7/257:05 am
PHX
- TYS
2 stops9h 35m
Southwest
Sat 8/11:35 pm
TYS
- PHX
1 stop9h 55m
Southwest
Deal found 6/25![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 6/26. 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 9/2811:52 pm
PHX
- TYS
1 stop6h 53m
United Airlines
Fri 10/210:42 am
TYS
- PHX
2 stops15h 33m
United Airlines
Deal found 6/26![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:00 pm
PHX
- TYS
1 stop5h 52m
Delta
Mon 9/146:13 pm
TYS
- PHX
1 stop7h 29m
Delta
Deal found 6/23![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 pm
PHX
- TYS
2 stops12h 42m
United Airlines
Mon 8/247:00 am
TYS
- PHX
2 stops10h 55m
United Airlines
Deal found 6/22![United Airlines logo]()
$500
Last-minute flights from Phoenix to KnoxvilleDiscover last-minute flight deals from Phoenix to Knoxville. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Knoxville. Data last updated June 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/164:20 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Mon 7/207:20 pm
TYS
- PHX
1 stop18h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$297
This CheapOair deal was found by Cheapflights users on 6/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:40 am
PHX
- TYS
1 stop7h 44m
Frontier
Wed 7/228:19 pm
TYS
- PHX
1 stop16h 52m
Frontier
Deal found 6/22![Frontier logo]()
$312
This Frontier deal was found by Cheapflights users on 6/24. 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.
Mon 7/206:40 am
PHX
- TYS
1 stop9h 44m
Frontier
Mon 7/278:19 pm
TYS
- PHX
1 stop6h 13m
Frontier
Deal found 6/24![Frontier logo]()
$304
This Delta deal was found by Cheapflights users on 6/22. 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.
Wed 7/225:45 am
PHX
- TYS
1 stop6h 03m
Delta
Wed 7/296:40 am
TYS
- PHX
1 stop7h 03m
Delta
Deal found 6/22![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/234:20 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Mon 7/272:47 pm
TYS
- PHX
1 stop25h 12m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$259
This CheapOair deal was found by Cheapflights users on 6/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:53 pm
PHX
- TYS
1 stop21h 31m
Frontier
Mon 7/278:19 pm
TYS
- PHX
1 stop22h 24m
Frontier
Deal found 6/23![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/234:20 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Thu 7/303:38 pm
TYS
- PHX
2 stops31h 06m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$276
This Expedia deal was found by Cheapflights users on 6/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:40 am
PHX
- TYS
1 stop9h 44m
Frontier
Mon 7/278:19 pm
TYS
- PHX
1 stop22h 24m
Frontier
Deal found 6/23![Frontier logo]()
$260
This Super.com deal was found by Cheapflights users on 6/26. 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 7/264:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/22:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Deal found 6/26![Allegiant Air logo]()
$258
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 June 27, 2026.
Search for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/24:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 6/22![Allegiant Air logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/304:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 6/22![Allegiant Air logo]()
$86
This CheapOair deal was found by Cheapflights users on 6/24. 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 8/94:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 6/24![Allegiant Air logo]()
$87
This CheapOair deal was found by Cheapflights users on 6/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:43 pm
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Deal found 6/22![Allegiant Air logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 6/22. 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 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
Deal found 6/22![Allegiant Air logo]()
$116
This Priceline deal was found by Cheapflights users on 6/24. 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 8/108:40 am
PHX
- TYS
1 stop7h 44m
Frontier
Deal found 6/24![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 6/26. 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.
Thu 7/164:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 6/26![Allegiant Air logo]()
$129
This Frontier deal was found by Cheapflights users on 6/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:40 am
PHX
- TYS
1 stop7h 44m
Frontier
Deal found 6/22![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/23. 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 CheapOair 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 6/23![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 6/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:48 pm
PHX
- TYS
1 stop23h 36m
Frontier
Deal found 6/23![Frontier logo]()
$134
This Priceline deal was found by Cheapflights users on 6/26. 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.
Fri 8/146:40 am
PHX
- TYS
1 stop9h 44m
Frontier
Deal found 6/26![Frontier logo]()
$136
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Tue 7/286:53 pm
PHX
- TYS
1 stop21h 31m
Frontier
Deal found 6/24![Frontier logo]()
$138
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 June 27, 2026.
Round-trip from | $129 (CheapOair) |
|---|---|
One-way from | $83 (Kiwi.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 June 27, 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 10/6
11:10 pm-10:14 am
1 stop8h 04m
Knoxville McGhee Tyson
Tue 10/13
5:30 am-9:27 am
1 stop6h 57m
$311
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 8/8
6:00 am-7:20 pm
1 stop10h 20m
Knoxville McGhee Tyson
Wed 8/12
1:55 pm-6:55 pm
2 stops8h 00m
$321
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 9/5
6:00 am-7:20 pm
1 stop10h 20m
Knoxville McGhee Tyson
Sat 9/12
6:50 am-12:40 pm
2 stops8h 50m
$322
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 8/26
11:05 pm-10:20 am
1 stop8h 15m
Knoxville McGhee Tyson
Fri 8/28
8:35 am-12:08 pm
1 stop6h 33m
$355
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 7/22
10:14 am-6:51 pm
1 stop5h 37m
Knoxville McGhee Tyson
Mon 7/27
3:59 pm-9:48 pm
1 stop8h 49m
$355
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 7/25
7:05 am-7:40 pm
2 stops9h 35m
Knoxville McGhee Tyson
Sat 8/1
1:35 pm-8:30 pm
1 stop9h 55m
$410
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 8/26
9:00 am-8:53 pm
1 stop8h 53m
Knoxville McGhee Tyson
Wed 9/2
9:45 am-8:24 pm
2 stops13h 39m
$416
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 9/3
3:00 pm-11:52 pm
1 stop5h 52m
Knoxville McGhee Tyson
Mon 9/14
6:13 pm-10:42 pm
1 stop7h 29m
$439
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Mon 9/28
11:52 pm-9:45 am
1 stop6h 53m
Knoxville McGhee Tyson
Fri 10/2
10:42 am-11:15 pm
2 stops15h 33m
$459
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
6:55 pm-10:37 am
2 stops12h 42m
Knoxville McGhee Tyson
Mon 8/24
7:00 am-2:55 pm
2 stops10h 55m
$500
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
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 June 27, 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.
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
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.
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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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$120 | Average$246 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$199 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$234 | Average$458 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$261 | Average$438 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$350 | Average$481 | FlexibilityNo cancel fee | On-time63% |