$79+ Cheap flights from Sky Harbor Intl (PHX) 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
May 23 — May 301
Round-trip
1 adult, Economy
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Find cheap flights from Sky Harbor Intl 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 Sky Harbor Intl 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 Sky Harbor Intl to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Sky Harbor Intl to KnoxvilleExplore the most affordable flight options available from Sky Harbor Intl to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
Explore the most affordable flight options available from Sky Harbor Intl to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/162:51 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/92:51 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$158
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 4/20![Allegiant Air logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/124:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 7/162:41 pm
TYS
- PHX
Nonstop3h 49m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 8/136:40 am
PHX
- TYS
2 stops26h 37m
Multiple Airlines
Sun 8/162:51 pm
TYS
- PHX
Nonstop4h 10m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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 4/20![Allegiant Air logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:53 pm
PHX
- TYS
1 stop21h 44m
Multiple Airlines
Thu 6/182:42 pm
TYS
- PHX
Nonstop3h 48m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$229
Best flights from Sky Harbor Intl to KnoxvilleDiscover carefully curated flight deals from Sky Harbor Intl to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
Discover carefully curated flight deals from Sky Harbor Intl to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
PHX
- TYS
1 stop6h 54m
United Airlines
Tue 8/2512:05 pm
TYS
- PHX
1 stop6h 08m
United Airlines
Deal found 4/20![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 4/21. 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 10/156:20 am
PHX
- TYS
1 stop6h 00m
Southwest
Tue 10/277:00 am
TYS
- PHX
2 stops7h 05m
Southwest
Deal found 4/21![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 4/23. 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 9/36:05 am
PHX
- TYS
1 stop6h 02m
Delta
Sun 9/65:30 am
TYS
- PHX
1 stop6h 33m
Delta
Deal found 4/23![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 8/2211:28 am
PHX
- TYS
1 stop6h 20m
United Airlines
Sat 8/298:30 am
TYS
- PHX
2 stops8h 53m
United Airlines
Deal found 4/22![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 4/20. 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 5/278:55 am
PHX
- TYS
2 stops7h 45m
Southwest
Wed 6/107:10 am
TYS
- PHX
2 stops9h 20m
Southwest
Deal found 4/20![Southwest logo]()
$497
This United Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/711:50 pm
PHX
- TYS
1 stop7h 15m
United Airlines
Sat 6/135:57 pm
TYS
- PHX
1 stop8h 25m
United Airlines
Deal found 4/18![United Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:05 am
PHX
- TYS
1 stop5h 20m
Southwest
Mon 9/77:10 am
TYS
- PHX
2 stops8h 55m
Southwest
Deal found 4/19![Southwest logo]()
$510
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 8/176:59 pm
PHX
- TYS
2 stops12h 37m
United Airlines
Fri 8/215:45 am
TYS
- PHX
2 stops11h 38m
United Airlines
Deal found 4/22![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/19![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:08 am
PHX
- TYS
2 stops11h 49m
United Airlines
Wed 9/24:56 pm
TYS
- PHX
1 stop8h 02m
United Airlines
Deal found 4/18![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 4/21. 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 8/206:40 pm
PHX
- TYS
2 stops12h 28m
United Airlines
Mon 8/246:30 am
TYS
- PHX
2 stops14h 29m
United Airlines
Deal found 4/21![United Airlines logo]()
$512
Last-minute flights from Sky Harbor Intl to KnoxvilleDiscover last-minute flight deals from Sky Harbor Intl to Knoxville. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Sky Harbor Intl to Knoxville. Data last updated April 23, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Sun 5/108:00 am
TYS
- PHX
Nonstop4h 06m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$251
This Trip.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/74:17 pm
PHX
- TYS
1 stop24h 16m
Multiple Airlines
Sun 5/108:00 am
TYS
- PHX
Nonstop4h 06m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:56 am
PHX
- TYS
Nonstop3h 24m
Multiple Airlines
Mon 5/258:19 pm
TYS
- PHX
2 stops42h 04m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:56 am
PHX
- TYS
Nonstop3h 24m
Multiple Airlines
Sun 5/243:46 pm
TYS
- PHX
2 stops21h 59m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$263
This Expedia deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:40 am
PHX
- TYS
1 stop7h 53m
Frontier
Mon 5/258:19 pm
TYS
- PHX
1 stop22h 04m
Frontier
Deal found 4/18![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:30 pm
PHX
- TYS
2 stops33h 43m
Multiple Airlines
Fri 6/58:32 pm
TYS
- PHX
1 stop14h 12m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:30 pm
PHX
- TYS
2 stops19h 31m
Multiple Airlines
Fri 6/58:32 pm
TYS
- PHX
1 stop14h 12m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:30 pm
PHX
- TYS
2 stops19h 31m
Multiple Airlines
Thu 6/47:00 am
TYS
- PHX
1 stop19h 29m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$260
One-way flights from Sky Harbor Intl to KnoxvilleSearch for one-way flight options from Sky Harbor Intl to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
Search for one-way flight options from Sky Harbor Intl to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 9/104:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$79
This Cheapflightsfares deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/94:20 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 4/18![Allegiant Air logo]()
$100
This Expedia deal was found by Cheapflights users on 4/22. 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 Expedia 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
Deal found 4/22![Frontier logo]()
$106
This Travelocity deal was found by Cheapflights users on 4/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:15 am
PHX
- TYS
1 stop11h 09m
Frontier
Deal found 4/22![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/179:56 am
PHX
- TYS
Nonstop3h 24m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$112
This Super.com deal was found by Cheapflights users on 4/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:50 am
PHX
- TYS
1 stop5h 43m
Frontier
Deal found 4/22![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/2011:00 am
PHX
- TYS
1 stop23h 59m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/274:29 pm
PHX
- TYS
2 stops51h 13m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$129
This Delta deal was found by Cheapflights users on 4/20. 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 6/1010:58 am
PHX
- TYS
1 stop7h 43m
Delta
Deal found 4/20![Delta logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/1511:30 pm
PHX
- TYS
2 stops37h 11m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$131
Find flight deals from Sky Harbor Intl to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $130 (Cheapflightsfares) |
One-way from | $79 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $403 |
Good round-trip deal | $208 or less |
Good one-way deal | $116 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Sky Harbor Intl 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 23, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport 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 8/18
6:00 am-3:54 pm
1 stop6h 54m
Knoxville McGhee Tyson
Tue 8/25
12:05 pm-3:13 pm
1 stop6h 08m
$259
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 8/22
11:28 am-8:48 pm
1 stop6h 20m
Knoxville McGhee Tyson
Sat 8/29
8:30 am-2:23 pm
2 stops8h 53m
$316
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 10/15
6:20 am-3:20 pm
1 stop6h 00m
Knoxville McGhee Tyson
Tue 10/27
7:00 am-11:05 am
2 stops7h 05m
$404
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 9/3
6:05 am-3:07 pm
1 stop6h 02m
Knoxville McGhee Tyson
Sun 9/6
5:30 am-9:03 am
1 stop6h 33m
$439
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sun 6/7
11:50 pm-10:05 am
1 stop7h 15m
Knoxville McGhee Tyson
Sat 6/13
5:57 pm-11:22 pm
1 stop8h 25m
$458
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 5/27
8:55 am-7:40 pm
2 stops7h 45m
Knoxville McGhee Tyson
Wed 6/10
7:10 am-1:30 pm
2 stops9h 20m
$497
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Mon 8/17
6:59 pm-10:36 am
2 stops12h 37m
Knoxville McGhee Tyson
Fri 8/21
5:45 am-2:23 pm
2 stops11h 38m
$501
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
Wed 8/26
9:08 am-11:57 pm
2 stops11h 49m
Knoxville McGhee Tyson
Wed 9/2
4:56 pm-9:58 pm
1 stop8h 02m
$504
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Fri 9/4
5:05 am-1:25 pm
1 stop5h 20m
Knoxville McGhee Tyson
Mon 9/7
7:10 am-1:05 pm
2 stops8h 55m
$510
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Sky Harbor Intl to Knoxville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Knoxville in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sky Harbor Intl to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Sky Harbor Intl with our price prediction graph.
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 Sky Harbor Intl Airport to Knoxville
Prices
More
How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Knoxville?
Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Knoxville. Price data was last updated on April 17, 2026.
To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Knoxville, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Knoxville?
Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Knoxville (average of $255). Flying from Phoenix Sky Harbor Intl Airport to Knoxville in April is currently the most expensive (average of $403). 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 Sky Harbor Intl Airport to Knoxville?
What’s the top layover airport for flights from Phoenix Sky Harbor Intl Airport to Knoxville?
Share of 1-stop round-trip flights from Phoenix Sky Harbor Intl Airport to Knoxville chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Knoxville on Cheapflights.
What’s the cheapest layover airport for flights from Phoenix Sky Harbor Intl Airport to Knoxville?
Average round-trip fare for 1-stop flights from Phoenix Sky Harbor Intl Airport to Knoxville, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $250.
What’s the fastest layover option from Phoenix Sky Harbor Intl Airport to Knoxville?
Shortest average travel time for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Knoxville, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 5h 42m.
Which airport typically offers the quickest layover for flights from Phoenix Sky Harbor Intl Airport to Knoxville?
Average layover duration for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Knoxville, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 0h 59m.
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 23, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Knoxville, such as Delta,United Airlines, andAllegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Sky Harbor Intl 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
Alcoa
Murphy
Oak Ridge
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Sky Harbor Intl and Knoxville flights
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Top 5 airlines flying from Sky Harbor Intl to Knoxville
Discover the top 5 airlines that operate flights from Sky Harbor Intl 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$232 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$170 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$250 | Average$395 | FlexibilityNo cancel fee | On-time71% |