$79+ Cheap flights from Knoxville (TYS) to Phoenix
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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Aug 10 — Aug 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Knoxville to Phoenix 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 Knoxville McGhee Tyson to Phoenix are usually found in August or September, booked 36 days in advance, depart on a Thursday or Wednesday and return on a Monday
Cheap flight deals from Knoxville to Phoenix
Cheapest
Best
Last-minute
One-way
Cheapest flights from Knoxville to PhoenixExplore the most affordable flight options available from Knoxville to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2026.
Explore the most affordable flight options available from Knoxville to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2026.
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 9/32:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Thu 9/104:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$131
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Sun 8/234:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$137
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 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Thu 8/274:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$138
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$166
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 9/102:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Sun 9/134:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$169
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Mon 10/129:11 am
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Deal found 7/7![Allegiant Air logo]()
$182
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 7/302:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Sun 8/24:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$188
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:30 am
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Mon 10/129:11 am
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Deal found 7/7![Allegiant Air logo]()
$189
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 9/32:34 pm
TYS
- PHX
Nonstop3h 58m
Multiple Airlines
Thu 9/103:40 pm
PHX
- TYS
2 stops18h 47m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$190
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 8/67:00 am
TYS
- PHX
1 stop19h 27m
Multiple Airlines
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$197
Best flights from Knoxville to PhoenixDiscover carefully curated flight deals from Knoxville to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2026.
Discover carefully curated flight deals from Knoxville to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:45 am
TYS
- PHX
1 stop6h 26m
Delta
Tue 10/277:15 am
PHX
- TYS
1 stop5h 25m
Delta
Deal found 7/11![Delta logo]()
$255
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:20 pm
TYS
- PHX
1 stop6h 15m
Southwest
Tue 10/277:00 am
PHX
- TYS
1 stop5h 40m
Southwest
Deal found 7/11![Southwest logo]()
$259
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:42 am
TYS
- PHX
2 stops15h 03m
United Airlines
Tue 10/279:00 am
PHX
- TYS
1 stop8h 44m
United Airlines
Deal found 7/8![United Airlines logo]()
$360
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 10/2211:45 am
TYS
- PHX
1 stop9h 24m
Delta
Tue 10/2710:36 am
PHX
- TYS
1 stop6h 32m
Delta
Deal found 7/9![Delta logo]()
$255
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:50 pm
TYS
- PHX
1 stop7h 45m
Southwest
Thu 9/109:50 pm
PHX
- TYS
2 stops12h 35m
Southwest
Deal found 7/8![Southwest logo]()
$340
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 pm
TYS
- PHX
1 stop6h 29m
United Airlines
Mon 9/146:41 pm
PHX
- TYS
2 stops12h 16m
United Airlines
Deal found 7/8![United Airlines logo]()
$362
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.
Mon 9/2111:45 am
TYS
- PHX
1 stop9h 14m
Delta
Fri 9/2511:05 pm
PHX
- TYS
1 stop8h 13m
Delta
Deal found 7/10![Delta logo]()
$339
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.
Wed 8/121:55 pm
TYS
- PHX
2 stops9h 25m
Southwest
Sat 8/156:15 am
PHX
- TYS
2 stops8h 25m
Southwest
Deal found 7/6![Southwest logo]()
$403
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:42 am
TYS
- PHX
2 stops15h 33m
United Airlines
Sat 10/2410:00 am
PHX
- TYS
1 stop8h 00m
United Airlines
Deal found 7/9![United Airlines logo]()
$428
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.
Fri 9/44:50 pm
TYS
- PHX
2 stops8h 05m
Southwest
Thu 9/1012:35 am
PHX
- TYS
2 stops8h 45m
Southwest
Deal found 7/9![Southwest logo]()
$404
Last-minute flights from Knoxville to PhoenixDiscover last-minute flight deals from Knoxville to Phoenix. Data last updated July 11, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Phoenix. Data last updated July 11, 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 7/302:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Sun 8/24:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$188
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 8/58:19 pm
TYS
- PHX
1 stop14h 21m
Multiple Airlines
Sun 8/94:51 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$200
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 8/58:19 pm
TYS
- PHX
1 stop14h 21m
Multiple Airlines
Wed 8/124:49 pm
PHX
- TYS
2 stops40h 28m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$213
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$166
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 8/67:00 am
TYS
- PHX
1 stop19h 27m
Multiple Airlines
Thu 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$197
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Sun 8/234:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$137
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.
Fri 8/218:30 am
TYS
- PHX
2 stops26h 10m
Multiple Airlines
Sun 8/234:16 pm
PHX
- TYS
Nonstop3h 36m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$206
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 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Thu 8/274:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$138
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 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Multiple Airlines
Thu 8/278:35 am
PHX
- TYS
2 stops26h 26m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$199
One-way flights from Knoxville to PhoenixSearch for one-way flight options from Knoxville to Phoenix. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
Search for one-way flight options from Knoxville to Phoenix. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/6![Allegiant Air logo]()
$79
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/62:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$96
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.
Wed 8/58:19 pm
TYS
- PHX
1 stop14h 21m
Frontier
Deal found 7/9![Frontier logo]()
$105
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/8![Allegiant Air 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.
Thu 8/67:00 am
TYS
- PHX
1 stop19h 27m
Multiple Airlines
Deal found 7/10![Multiple Airlines 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.
Sun 9/137:00 am
TYS
- PHX
1 stop27h 58m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$120
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 9/132:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 7/8![Allegiant Air logo]()
$123
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 11/121:39 pm
TYS
- PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$126
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:40 am
TYS
- PHX
1 stop6h 26m
Delta
Deal found 7/8![Delta logo]()
$128
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:30 pm
TYS
- PHX
1 stop6h 06m
Delta
Deal found 7/7![Delta logo]()
$130
Find flight deals from Knoxville to Phoenix
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Phoenix (PH1). 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 11, 2026.
Round-trip from | $131 (Cheapflightsfares) |
|---|---|
One-way from | $79 (CheapOair) |
Popular in | June |
Cheapest in | August |
Average price | $353 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Phoenix 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 11, 2026.
Use the filters below to find and compare flights from Knoxville to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Tue 10/20
5:45 am-9:11 am
1 stop6h 26m
Phoenix Sky Harbor Intl
Tue 10/27
7:15 am-3:40 pm
1 stop5h 25m
$255
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Thu 10/22
11:45 am-6:09 pm
1 stop9h 24m
Phoenix Sky Harbor Intl
Tue 10/27
10:36 am-8:08 pm
1 stop6h 32m
$255
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Tue 10/20
3:20 pm-6:35 pm
1 stop6h 15m
Phoenix Sky Harbor Intl
Tue 10/27
7:00 am-3:40 pm
1 stop5h 40m
$259
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Mon 9/21
11:45 am-5:59 pm
1 stop9h 14m
Phoenix Sky Harbor Intl
Fri 9/25
11:05 pm-10:18 am
1 stop8h 13m
$339
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Thu 9/3
4:50 pm-9:35 pm
1 stop7h 45m
Phoenix Sky Harbor Intl
Thu 9/10
9:50 pm-1:25 pm
2 stops12h 35m
$340
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Thu 10/22
10:42 am-10:45 pm
2 stops15h 03m
Phoenix Sky Harbor Intl
Tue 10/27
9:00 am-8:44 pm
1 stop8h 44m
$360
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Wed 9/9
6:00 pm-9:29 pm
1 stop6h 29m
Phoenix Sky Harbor Intl
Mon 9/14
6:41 pm-9:57 am
2 stops12h 16m
$362
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Wed 8/12
1:55 pm-8:20 pm
2 stops9h 25m
Phoenix Sky Harbor Intl
Sat 8/15
6:15 am-5:40 pm
2 stops8h 25m
$403
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Fri 9/4
4:50 pm-9:55 pm
2 stops8h 05m
Phoenix Sky Harbor Intl
Thu 9/10
12:35 am-12:20 pm
2 stops8h 45m
$404
KnoxvillePhoenix
TYS - PHX
TYSPHX
Knoxville McGhee Tyson
Thu 10/22
10:42 am-11:15 pm
2 stops15h 33m
Phoenix Sky Harbor Intl
Sat 10/24
10:00 am-9:00 pm
1 stop8h 00m
$428
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from Knoxville to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Knoxville with our price prediction graph.
TYS-PH1
TYS-PHX
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 Knoxville to Phoenix
TYS-PH1
TYS-PHX
What is the cheapest month to book a flight from Knoxville to Phoenix?
Currently, August is the cheapest month in which you can book a flight from Knoxville to Phoenix (average of $62). Flying from Knoxville to Phoenix in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from TYS to PHX?
Find hourly flight availability from Knoxville to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Phoenix as you normally would.
How much does it cost to fly round-trip from Knoxville to Phoenix?
How far ahead should I book a flight from Knoxville to Phoenix?
Booking 35 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Phoenix. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Phoenix
Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated July 11, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant Air from Knoxville to Phoenix by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Knoxville
Popular flights
Alternative routes for Knoxville to Phoenix
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Phoenix by cabin class
Find flights from Knoxville to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Phoenix flights
Browse other Knoxville and Phoenix flight options. Last updated on July 11, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on July 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Knoxville to Phoenix
Discover the top 6 airlines that operate flights from Knoxville to Phoenix. 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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$119 | Average$270 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$125 | Average$327 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$243 | Average$557 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$269 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$276 | Average$472 | FlexibilityNo cancel fee | On-time63% |