$91+ Cheap flights from Phoenix to Knoxville (TYS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Aug 28 — Sep 41
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 September, booked 57 days in advance, depart on a Monday or Wednesday and return on a Monday
Cheap flight deals from Phoenix to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Phoenix to KnoxvilleExplore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
Explore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.
This Traveloka deal was found by Cheapflights users on 7/25. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$145
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/64:22 pm
PHX
- TYS
Nonstop3h 31m
Allegiant Air
Thu 9/102:34 pm
TYS
- PHX
Nonstop3h 58m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$161
Best flights from Phoenix to KnoxvilleDiscover carefully curated flight deals from Phoenix to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
Discover carefully curated flight deals from Phoenix to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2026.
This Delta deal was found by Cheapflights users on 7/25. 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.
Thu 9/311:05 pm
PHX
- TYS
1 stop8h 15m
Delta
Mon 9/146:13 pm
TYS
- PHX
1 stop6h 13m
Delta
Deal found 7/25![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 7/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:05 am
PHX
- TYS
2 stops7h 55m
Southwest
Mon 10/267:25 pm
TYS
- PHX
2 stops7h 00m
Southwest
Deal found 7/24![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 7/28. 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 10/2211:52 pm
PHX
- TYS
1 stop6h 53m
United Airlines
Sun 11/15:45 am
TYS
- PHX
1 stop7h 48m
United Airlines
Deal found 7/28![United Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 7/26. 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 9/195:00 am
PHX
- TYS
2 stops9h 45m
Southwest
Tue 9/227:00 am
TYS
- PHX
2 stops7h 00m
Southwest
Deal found 7/26![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:15 pm
PHX
- TYS
1 stop6h 30m
United Airlines
Tue 8/257:00 am
TYS
- PHX
2 stops10h 54m
United Airlines
Deal found 7/28![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 11/72:50 pm
PHX
- TYS
1 stop5h 39m
United Airlines
Tue 11/109:58 am
TYS
- PHX
2 stops13h 39m
United Airlines
Deal found 7/26![United Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:35 pm
PHX
- TYS
1 stop8h 26m
Delta
Fri 10/166:57 pm
TYS
- PHX
1 stop7h 24m
Delta
Deal found 7/24![Delta logo]()
$478
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:05 am
PHX
- TYS
1 stop5h 20m
Southwest
Sun 8/238:30 am
TYS
- PHX
2 stops14h 20m
Southwest
Deal found 7/27![Southwest logo]()
$439
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/266:00 am
PHX
- TYS
2 stops11h 24m
United Airlines
Wed 9/210:40 am
TYS
- PHX
1 stop7h 40m
United Airlines
Deal found 7/28![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/2011:32 am
PHX
- TYS
1 stop7h 57m
United Airlines
Mon 8/247:00 am
TYS
- PHX
2 stops13h 10m
United Airlines
Deal found 7/28![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Fri 11/67:45 pm
PHX
- TYS
2 stops11h 38m
United Airlines
Thu 11/1210:45 am
TYS
- PHX
2 stops12h 40m
United Airlines
Deal found 7/26![United Airlines logo]()
$474
Last-minute flights from Phoenix to KnoxvilleDiscover last-minute flight deals from Phoenix to Knoxville. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Knoxville. Data last updated July 29, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/24. 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 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/133:01 pm
TYS
- PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/24![Allegiant Air logo]()
$165
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 8/135:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$145
This Traveloka deal was found by Cheapflights users on 7/25. 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 Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
- PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$141
One-way flights from Phoenix to KnoxvilleSearch for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
Search for one-way flight options from Phoenix to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:51 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$91
This CheapOair deal was found by Cheapflights users on 7/28. 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 10/33:38 pm
PHX
- TYS
Nonstop3h 27m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$97
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz 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
Deal found 7/27![Allegiant Air logo]()
$99
This Super.com deal was found by Cheapflights users on 7/24. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:01 pm
PHX
- TYS
Nonstop3h 36m
Allegiant Air
Deal found 7/24![Allegiant Air logo]()
$102
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair 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
Deal found 7/25![Allegiant Air logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:15 am
PHX
- TYS
1 stop24h 56m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/268:30 am
PHX
- TYS
1 stop29h 48m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$133
Find flight deals from Phoenix to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2026.
Round-trip from | $141 (Traveloka) |
|---|---|
One-way from | $91 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $366 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 9/3
11:05 pm-10:20 am
1 stop8h 15m
Knoxville McGhee Tyson
Mon 9/14
6:13 pm-9:26 pm
1 stop6h 13m
$329
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 10/21
10:05 am-9:00 pm
2 stops7h 55m
Knoxville McGhee Tyson
Mon 10/26
7:25 pm-11:25 pm
2 stops7h 00m
$390
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 10/22
11:52 pm-9:45 am
1 stop6h 53m
Knoxville McGhee Tyson
Sun 11/1
5:45 am-11:33 am
1 stop7h 48m
$409
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 9/19
5:00 am-5:45 pm
2 stops9h 45m
Knoxville McGhee Tyson
Tue 9/22
7:00 am-11:00 am
2 stops7h 00m
$420
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
12:15 pm-9:45 pm
1 stop6h 30m
Knoxville McGhee Tyson
Tue 8/25
7:00 am-2:54 pm
2 stops10h 54m
$424
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Sat 11/7
2:50 pm-10:29 pm
1 stop5h 39m
Knoxville McGhee Tyson
Tue 11/10
9:58 am-9:37 pm
2 stops13h 39m
$424
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Wed 8/26
6:00 am-8:24 pm
2 stops11h 24m
Knoxville McGhee Tyson
Wed 9/2
10:40 am-3:20 pm
1 stop7h 40m
$424
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
11:32 am-10:29 pm
1 stop7h 57m
Knoxville McGhee Tyson
Mon 8/24
7:00 am-5:10 pm
2 stops13h 10m
$424
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Thu 8/20
5:05 am-1:25 pm
1 stop5h 20m
Knoxville McGhee Tyson
Sun 8/23
8:30 am-7:50 pm
2 stops14h 20m
$439
PhoenixKnoxville
PHX - TYS
PHXTYS
Phoenix Sky Harbor Intl
Fri 11/6
7:45 pm-9:23 am
2 stops11h 38m
Knoxville McGhee Tyson
Thu 11/12
10:45 am-9:25 pm
2 stops12h 40m
$474
Showing 1-10 of 17 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, February is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $245). Flying from Phoenix to Knoxville in April is currently the most expensive (average of $424). 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?
Airfare is below average for this route at the moment.
Phoenix to Knoxville flights typically cost between $167 and $468 in August.The cheapest round-trip price found within the last 5 days was $141 on Allegiant Air (Aug 20-Aug 23).
How far ahead should I book a flight from Phoenix to Knoxville?
Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated July 29, 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
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
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Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
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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 July 29, 2026.
Phoenix and Knoxville flights
Browse other Phoenix and Knoxville flight options. Last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Phoenix to Knoxville
Discover the top 6 airlines that operate flights from Phoenix to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$243 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$122 | Average$242 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$199 | Average$462 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$234 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$443 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$350 | Average$481 | FlexibilityNo cancel fee | On-time63% |