$55+ 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — AUS
May 23 — May 301
Round-trip
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 May 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 April 23, 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 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.
Mon 6/87:25 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Fri 6/128:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$93
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:30 am
TYS
- AUS
Nonstop2h 22m
Allegiant Air
Mon 7/138:42 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$107
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.
Fri 6/126:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Mon 6/228:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$109
This Cheapflightsfares 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 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 4/21![Allegiant Air logo]()
$121
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 10/112:01 pm
TYS
- AUS
Nonstop2h 28m
Allegiant Air
Thu 10/82:19 pm
AUS
- TYS
Nonstop2h 16m
Allegiant Air
Deal found 4/20![Allegiant Air logo]()
$144
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Mon 6/228:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$159
This Super.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 Super.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
Mon 5/258:26 am
AUS
- TYS
Nonstop2h 11m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$160
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.
Fri 5/296:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Mon 6/18:26 am
AUS
- TYS
Nonstop2h 11m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$179
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 April 23, 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 April 23, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:40 am
TYS
- AUS
2 stops6h 25m
Southwest
Tue 6/98:25 am
AUS
- TYS
1 stop8h 55m
Southwest
Deal found 4/18![Southwest logo]()
$301
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 5/2910:25 am
TYS
- AUS
1 stop4h 18m
Delta
Mon 6/15:25 am
AUS
- TYS
1 stop6h 45m
Delta
Deal found 4/17![Delta logo]()
$341
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.
Fri 8/146:30 am
TYS
- AUS
1 stop8h 17m
United Airlines
Mon 8/172:10 pm
AUS
- TYS
1 stop6h 20m
United Airlines
Deal found 4/21![United Airlines logo]()
$368
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.
Fri 5/296:35 am
TYS
- AUS
2 stops5h 50m
Southwest
Tue 6/211:45 am
AUS
- TYS
2 stops8h 05m
Southwest
Deal found 4/21![Southwest logo]()
$306
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:55 pm
TYS
- AUS
1 stop4h 30m
Southwest
Mon 6/1511:30 am
AUS
- TYS
2 stops8h 40m
Southwest
Deal found 4/18![Southwest logo]()
$315
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:07 am
TYS
- AUS
1 stop6h 26m
Delta
Sun 8/305:40 am
AUS
- TYS
1 stop4h 25m
Delta
Deal found 4/18![Delta logo]()
$353
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:56 am
TYS
- AUS
1 stop4h 59m
Delta
Sun 6/76:32 pm
AUS
- TYS
1 stop4h 22m
Delta
Deal found 4/18![Delta logo]()
$353
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.
Sat 5/306:40 am
TYS
- AUS
1 stop4h 25m
Southwest
Tue 6/29:10 am
AUS
- TYS
1 stop7h 00m
Southwest
Deal found 4/19![Southwest logo]()
$339
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.
Sat 7/256:55 pm
TYS
- AUS
1 stop6h 00m
Southwest
Tue 7/287:50 am
AUS
- TYS
1 stop5h 15m
Southwest
Deal found 4/20![Southwest logo]()
$339
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 5/216:45 pm
TYS
- AUS
1 stop6h 20m
Southwest
Sat 5/239:05 am
AUS
- TYS
2 stops8h 25m
Southwest
Deal found 4/21![Southwest logo]()
$363
Last-minute flights from Knoxville to AustinDiscover last-minute flight deals from Knoxville to Austin. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Austin. Data last updated April 23, 2026 and is based on user searches.
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 5/1411:27 am
TYS
- AUS
2 stops24h 18m
Multiple Airlines
Mon 5/1811:18 am
AUS
- TYS
1 stop10h 06m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$220
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.
Mon 5/181:15 pm
TYS
- AUS
2 stops28h 37m
Multiple Airlines
Mon 5/258:26 am
AUS
- TYS
Nonstop2h 11m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$241
This Super.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 Super.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
Mon 5/258:26 am
AUS
- TYS
Nonstop2h 11m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$160
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.
Fri 5/296:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Mon 6/18:26 am
AUS
- TYS
Nonstop2h 11m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$179
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.
Fri 5/296:00 am
TYS
- AUS
Nonstop2h 36m
Multiple Airlines
Tue 6/25:47 pm
AUS
- TYS
2 stops23h 11m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$222
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.
Fri 5/296:00 am
TYS
- AUS
Nonstop2h 36m
Multiple Airlines
Sun 6/79:13 pm
AUS
- TYS
2 stops25h 26m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$252
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:36 am
TYS
- AUS
1 stop6h 06m
American Airlines
Tue 6/23:44 pm
AUS
- TYS
1 stop7h 12m
American Airlines
Deal found 4/20![American Airlines logo]()
$245
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 April 23, 2026.
Search for one-way flight options from Knoxville to Austin. 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 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$55
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.
Fri 6/266:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$57
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:04 pm
TYS
- AUS
Nonstop2h 28m
Allegiant Air
Deal found 4/19![Allegiant Air logo]()
$59
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.
Fri 7/36:30 am
TYS
- AUS
Nonstop2h 22m
Allegiant Air
Deal found 4/18![Allegiant Air logo]()
$66
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$68
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.
Mon 6/156:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Deal found 4/18![Allegiant Air logo]()
$72
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Deal found 4/21![Allegiant Air logo]()
$75
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.
Mon 7/206:30 am
TYS
- AUS
Nonstop2h 22m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$76
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 5/226:00 am
TYS
- AUS
Nonstop2h 36m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$82
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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $93 (Cheapflightsfares) |
One-way from | $55 (Kiwi.com) |
Popular in | March |
Cheapest in | May |
Average price | $338 |
Good round-trip deal | $156 or less |
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 April 23, 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
Cheapest round-trip
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 6/4
6:40 am-12:05 pm
2 stops6h 25m
Austin Bergstrom
Tue 6/9
8:25 am-6:20 pm
1 stop8h 55m
$301
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 5/29
6:35 am-11:25 am
2 stops5h 50m
Austin Bergstrom
Tue 6/2
11:45 am-8:50 pm
2 stops8h 05m
$306
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 6/3
2:55 pm-6:25 pm
1 stop4h 30m
Austin Bergstrom
Mon 6/15
11:30 am-9:10 pm
2 stops8h 40m
$315
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 5/30
6:40 am-10:05 am
1 stop4h 25m
Austin Bergstrom
Tue 6/2
9:10 am-5:10 pm
1 stop7h 00m
$339
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 7/25
6:55 pm-11:55 pm
1 stop6h 00m
Austin Bergstrom
Tue 7/28
7:50 am-2:05 pm
1 stop5h 15m
$339
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 5/29
10:25 am-1:43 pm
1 stop4h 18m
Austin Bergstrom
Mon 6/1
5:25 am-1:10 pm
1 stop6h 45m
$341
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 8/26
7:07 am-12:33 pm
1 stop6h 26m
Austin Bergstrom
Sun 8/30
5:40 am-11:05 am
1 stop4h 25m
$353
Quickest round-trip
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Wed 6/3
11:56 am-3:55 pm
1 stop4h 59m
Austin Bergstrom
Sun 6/7
6:32 pm-11:54 pm
1 stop4h 22m
$353
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 5/21
6:45 pm-12:05 am
1 stop6h 20m
Austin Bergstrom
Sat 5/23
9:05 am-6:30 pm
2 stops8h 25m
$363
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 8/14
6:30 am-1:47 pm
1 stop8h 17m
Austin Bergstrom
Mon 8/17
2:10 pm-9:30 pm
1 stop6h 20m
$368
Showing 1-10 of 17 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 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 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 April 17, 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 $188). Flying from Knoxville to Austin in March is currently the most expensive (average of $405). 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 April 23, 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 47% 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 April 23, 2026.
Read through reviews of airlines operating flights from Knoxville to Austin, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
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
Round Rock
San Marcos
Fredericksburg
Pflugerville
Georgetown
Bastrop
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Seguin
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Horseshoe Bay
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Knoxville and Austin flights
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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 April 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$390 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$86 | Average$148 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$233 | Average$318 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$279 | Average$367 | FlexibilityNo cancel fee | On-time63% |