$88+ Cheap flights from Knoxville to Austin (TYS - AUS)
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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — AUS
Mar 28 — Apr 41
1 adult, Economy
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Find cheap flights from Knoxville to Austin 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 Austin Bergstrom are usually found in October or December, booked 58 days in advance, depart on a Tuesday or Monday and return on a Saturday
Cheap flight deals from Knoxville to Austin
Cheapest
Best
Last-minute
One-way
Cheapest flights from Knoxville to AustinExplore the most affordable flight options available from Knoxville to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.
Explore the most affordable flight options available from Knoxville to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 2/25. 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.
Mon 6/156:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Fri 6/198:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Fri 6/198:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 2/23. 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.
Fri 5/296:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Mon 6/89:33 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 2/23![Allegiant Air logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Mon 6/158:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:30 am
TYS
- AUS
Nonstop2h 18m
Multiple Airlines
Tue 6/167:09 am
AUS
- TYS
1 stop8h 03m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/159:43 pm
TYS
- AUS
1 stop27h 41m
Multiple Airlines
Wed 4/14:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/134:20 pm
TYS
- AUS
1 stop18h 46m
Multiple Airlines
Wed 4/14:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/159:43 pm
TYS
- AUS
1 stop27h 41m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/134:20 pm
TYS
- AUS
1 stop18h 46m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$218
Best flights from Knoxville to AustinDiscover carefully curated flight deals from Knoxville to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 26, 2026.
Discover carefully curated flight deals from Knoxville to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Tue 3/243:00 pm
TYS
- AUS
1 stop10h 24m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$230
This Southwest deal was found by Cheapflights users on 2/24. 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 4/297:05 am
TYS
- AUS
2 stops7h 30m
Southwest
Wed 5/610:55 am
AUS
- TYS
2 stops7h 45m
Southwest
Deal found 2/24![Southwest logo]()
$268
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Wed 4/87:00 am
TYS
- AUS
2 stops9h 24m
United Airlines
Wed 4/155:56 pm
AUS
- TYS
1 stop4h 45m
United Airlines
Deal found 2/22![United Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 2/22. 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.
Sat 3/145:40 am
TYS
- AUS
1 stop6h 37m
Delta
Sat 3/215:22 am
AUS
- TYS
1 stop7h 02m
Delta
Deal found 2/22![Delta logo]()
$370
This Southwest deal was found by Cheapflights users on 2/21. 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.
Tue 3/246:35 am
TYS
- AUS
2 stops6h 25m
Southwest
Tue 3/3111:05 am
AUS
- TYS
2 stops8h 00m
Southwest
Deal found 2/21![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 2/25. 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.
Thu 5/76:35 am
TYS
- AUS
2 stops7h 15m
Southwest
Sun 5/1011:25 am
AUS
- TYS
2 stops8h 40m
Southwest
Deal found 2/25![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 2/22. 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.
Thu 4/27:25 pm
TYS
- AUS
1 stop6h 35m
Southwest
Mon 4/66:00 am
AUS
- TYS
2 stops8h 00m
Southwest
Deal found 2/22![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 2/24. 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.
Wed 4/15:40 am
TYS
- AUS
1 stop6h 15m
Delta
Sat 4/115:22 am
AUS
- TYS
1 stop7h 02m
Delta
Deal found 2/24![Delta logo]()
$452
This Southwest deal was found by Cheapflights users on 2/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:40 am
TYS
- AUS
2 stops6h 00m
Southwest
Thu 5/216:45 am
AUS
- TYS
1 stop3h 55m
Southwest
Deal found 2/23![Southwest logo]()
$432
Last-minute flights from Knoxville to AustinDiscover last-minute flight deals from Knoxville to Austin. Data last updated February 26, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Austin. Data last updated February 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/134:20 pm
TYS
- AUS
1 stop18h 46m
Multiple Airlines
Wed 4/14:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/134:20 pm
TYS
- AUS
1 stop18h 46m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 2/22. 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.
Sat 3/149:16 pm
TYS
- AUS
1 stop28h 08m
Multiple Airlines
Wed 4/14:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/159:43 pm
TYS
- AUS
1 stop27h 41m
Multiple Airlines
Wed 4/14:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/159:43 pm
TYS
- AUS
1 stop27h 41m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 2/22. 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 3/159:43 pm
TYS
- AUS
1 stop27h 41m
Multiple Airlines
Thu 4/211:00 am
AUS
- TYS
1 stop27h 28m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Fri 3/274:20 pm
TYS
- AUS
1 stop8h 56m
Multiple Airlines
Tue 3/316:12 am
AUS
- TYS
1 stop6h 58m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$222
One-way flights from Knoxville to AustinSearch for one-way flight options from Knoxville to Austin. Find affordable one-way fares based on user searches. Data last updated February 26, 2026.
Search for one-way flight options from Knoxville to Austin. Find affordable one-way fares based on user searches. Data last updated February 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:28 pm
TYS
- AUS
1 stop29h 24m
Frontier
Deal found 2/25![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Mon 3/234:20 pm
TYS
- AUS
1 stop8h 56m
Frontier
Deal found 2/23![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:05 pm
TYS
- AUS
1 stop29h 21m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$116
This Delta deal was found by Cheapflights users on 2/24. 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.
Tue 4/214:38 pm
TYS
- AUS
1 stop6h 29m
Delta
Deal found 2/24![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:30 am
TYS
- AUS
1 stop13h 54m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Mon 3/303:29 pm
TYS
- AUS
1 stop28h 48m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$124
Find flight deals from Knoxville to Austin
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Austin (AUS). 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 February 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $100 (Cheapflightsfares) |
One-way from | $88 (Kiwi.com) |
Popular in | November |
Cheapest in | October |
Average price | $384 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Austin 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 February 26, 2026.
Use the filters below to find and compare flights from Knoxville to Austin that are best for you.
Fly from
Fly to
Route
Depart
Return
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Tue 3/24
3:00 pm-12:24 am
1 stop10h 24m
Austin Bergstrom
Tue 3/31
6:12 am-2:10 pm
1 stop6h 58m
$230
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 4/29
7:05 am-1:35 pm
2 stops7h 30m
Austin Bergstrom
Wed 5/6
10:55 am-7:40 pm
2 stops7h 45m
$268
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Tue 3/24
6:35 am-12:00 pm
2 stops6h 25m
Austin Bergstrom
Tue 3/31
11:05 am-8:05 pm
2 stops8h 00m
$275
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 5/7
6:35 am-12:50 pm
2 stops7h 15m
Austin Bergstrom
Sun 5/10
11:25 am-9:05 pm
2 stops8h 40m
$339
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 4/8
7:00 am-3:24 pm
2 stops9h 24m
Austin Bergstrom
Wed 4/15
5:56 pm-11:41 pm
1 stop4h 45m
$340
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 4/2
7:25 pm-1:00 am
1 stop6h 35m
Austin Bergstrom
Mon 4/6
6:00 am-3:00 pm
2 stops8h 00m
$344
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 3/14
5:40 am-11:17 am
1 stop6h 37m
Austin Bergstrom
Sat 3/21
5:22 am-1:24 pm
1 stop7h 02m
$370
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sun 5/17
6:40 am-11:40 am
2 stops6h 00m
Austin Bergstrom
Thu 5/21
6:45 am-11:40 am
1 stop3h 55m
$432
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 4/1
5:40 am-10:55 am
1 stop6h 15m
Austin Bergstrom
Sat 4/11
5:22 am-1:24 pm
1 stop7h 02m
$452
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 4/23
4:28 pm-8:52 pm
1 stop29h 24m
$117
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Austin
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 Knoxville to Austin in February.
| 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 Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Knoxville-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Austin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Austin 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 Knoxville-Austin 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 Knoxville to Austin
Have a flexible travel schedule? Discover the best time to fly to Austin from Knoxville with our price prediction graph.
TYS-AUS
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 Austin
How far ahead should I book a flight from Knoxville to Austin?
Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Austin. Price data was last updated on February 20, 2026.
Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Knoxville to Austin?
Currently, May is the cheapest month in which you can book a flight from Knoxville to Austin (average of $86). Flying from Knoxville to Austin in January is currently the most expensive (average of $219). 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 AUS?
Find hourly flight availability from Knoxville to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 26, 2026.
One of the essential ways to save on airfare from Knoxville to Austin is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 58% on airfare.
Reviews of airlines servicing Austin
Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated February 26, 2026.
Read through reviews of airlines operating flights from Knoxville to Austin, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Austin. 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 Austin?
Book flights to Austin if you plan to visit one of these locationsCedar Park
San Marcos
Fredericksburg
Round Rock
Georgetown
Bastrop
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Knoxville to Austin
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Other flights to Austin
Explore flights to Austin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 26, 2026.
Complete your trip
Complete your trip to Austin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Austin by cabin class
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Knoxville and Austin flights
Browse other Knoxville and Austin flight options. Last updated on February 26, 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 February 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Knoxville to Austin
Discover the top 6 airlines that operate flights from Knoxville to Austin. 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 February 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$390 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$86 | Average$131 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$233 | Average$323 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$279 | Average$349 | FlexibilityNo cancel fee | On-time63% |