$49+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — AUS
Apr 16 — Apr 231
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 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
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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 March 17, 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 March 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 3/13![Allegiant Air logo]()
$105
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 3/14![Allegiant Air logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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 7/68:42 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/16![Allegiant Air logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 3/15. 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
Mon 6/89:33 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 7/316:30 am
TYS
- AUS
Nonstop2h 22m
Allegiant Air
Mon 8/38:42 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$151
This Priceline deal was found by Cheapflights users on 3/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Mon 4/136:45 am
AUS
- TYS
1 stop7h 43m
Frontier
Deal found 3/16![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 6/57:25 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Mon 6/89:33 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 6/87:25 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Mon 6/158:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 6/57:25 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Fri 6/128:38 am
AUS
- TYS
Nonstop2h 21m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$197
This Booking.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:32 pm
TYS
- AUS
1 stop14h 11m
Multiple Airlines
Mon 6/89:33 am
AUS
- TYS
Nonstop2h 21m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$198
This Mytrip deal was found by Cheapflights users on 3/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Sun 4/1211:00 am
AUS
- TYS
1 stop27h 28m
Frontier
Deal found 3/15![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/95:10 pm
TYS
- AUS
1 stop8h 14m
Multiple Airlines
Tue 4/144:59 pm
AUS
- TYS
1 stop16h 37m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$211
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 March 17, 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 March 17, 2026.
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/117:00 am
TYS
- AUS
2 stops9h 24m
United Airlines
Mon 4/202:10 pm
AUS
- TYS
1 stop4h 46m
United Airlines
Deal found 3/12![United Airlines logo]()
$296
This Southwest deal was found by Cheapflights users on 3/14. 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 5/26:40 am
TYS
- AUS
2 stops6h 00m
Southwest
Wed 5/611:45 am
AUS
- TYS
2 stops8h 05m
Southwest
Deal found 3/14![Southwest logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/108:00 am
TYS
- AUS
2 stops17h 24m
Multiple Airlines
Mon 4/136:45 am
AUS
- TYS
1 stop7h 43m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/14. 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 6/68:35 am
TYS
- AUS
1 stop6h 08m
Delta
Tue 6/912:20 pm
AUS
- TYS
1 stop3h 59m
Delta
Deal found 3/14![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 3/16. 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 4/116:40 am
TYS
- AUS
2 stops5h 55m
Southwest
Mon 4/1310:10 am
AUS
- TYS
2 stops9h 10m
Southwest
Deal found 3/16![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 3/14. 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 6/95:57 pm
TYS
- AUS
1 stop7h 29m
Delta
Tue 6/169:45 am
AUS
- TYS
1 stop5h 49m
Delta
Deal found 3/14![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 3/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/912:45 pm
TYS
- AUS
1 stop8h 30m
Southwest
Sun 6/1411:30 am
AUS
- TYS
2 stops9h 55m
Southwest
Deal found 3/17![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 3/12. 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 4/166:35 am
TYS
- AUS
2 stops7h 15m
Southwest
Fri 4/179:10 am
AUS
- TYS
1 stop8h 00m
Southwest
Deal found 3/12![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 3/14. 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 7/316:40 am
TYS
- AUS
2 stops6h 00m
Southwest
Sun 8/26:45 am
AUS
- TYS
1 stop4h 20m
Southwest
Deal found 3/14![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 3/14. 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 6/126:40 am
TYS
- AUS
1 stop4h 30m
Southwest
Mon 6/1511:40 am
AUS
- TYS
2 stops9h 40m
Southwest
Deal found 3/14![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 3/16. 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 7/107:30 am
TYS
- AUS
1 stop9h 40m
Southwest
Sun 7/1211:30 am
AUS
- TYS
2 stops9h 55m
Southwest
Deal found 3/16![Southwest logo]()
$379
This Southwest deal was found by Cheapflights users on 3/16. 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 4/106:45 pm
TYS
- AUS
2 stops6h 05m
Southwest
Mon 4/139:10 am
AUS
- TYS
1 stop8h 00m
Southwest
Deal found 3/16![Southwest logo]()
$379
Last-minute flights from Knoxville to AustinDiscover last-minute flight deals from Knoxville to Austin. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Austin. Data last updated March 17, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/16. 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 3/308:58 am
TYS
- AUS
1 stop16h 26m
Multiple Airlines
Mon 4/64:59 pm
AUS
- TYS
1 stop20h 07m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 3/313:00 pm
TYS
- AUS
1 stop26h 04m
Multiple Airlines
Sat 4/44:59 pm
AUS
- TYS
1 stop29h 40m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 3/313:00 pm
TYS
- AUS
1 stop26h 04m
Multiple Airlines
Fri 4/34:59 pm
AUS
- TYS
1 stop14h 37m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/49:26 am
TYS
- AUS
1 stop15h 58m
Multiple Airlines
Wed 4/84:14 pm
AUS
- TYS
2 stops22h 27m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$259
This Priceline deal was found by Cheapflights users on 3/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/64:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Mon 4/136:45 am
AUS
- TYS
1 stop7h 43m
Frontier
Deal found 3/16![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/95:10 pm
TYS
- AUS
1 stop8h 14m
Multiple Airlines
Tue 4/144:59 pm
AUS
- TYS
1 stop16h 37m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$211
This Priceline deal was found by Cheapflights users on 3/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Mon 4/136:45 am
AUS
- TYS
1 stop7h 43m
Frontier
Deal found 3/16![Frontier logo]()
$180
This Mytrip deal was found by Cheapflights users on 3/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Sun 4/1211:00 am
AUS
- TYS
1 stop27h 28m
Frontier
Deal found 3/15![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/106:20 pm
TYS
- AUS
2 stops22h 44m
Multiple Airlines
Fri 4/176:00 am
AUS
- TYS
1 stop29h 06m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/137:30 am
TYS
- AUS
1 stop17h 54m
Multiple Airlines
Mon 4/207:12 pm
AUS
- TYS
2 stops38h 24m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 4/163:35 pm
TYS
- AUS
1 stop9h 05m
Multiple Airlines
Tue 4/219:25 am
AUS
- TYS
2 stops24h 11m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$264
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 March 17, 2026.
Search for one-way flight options from Knoxville to Austin. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/15. 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
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$49
This Cheapflightsfares deal was found by Cheapflights users on 3/12. 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 6/266:30 am
TYS
- AUS
Nonstop2h 18m
Allegiant Air
Deal found 3/12![Allegiant Air logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 3/16. 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 3/16![Allegiant Air logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 9/118:00 am
TYS
- AUS
Nonstop2h 23m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 3/13. 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
Deal found 3/13![Allegiant Air logo]()
$89
This Frontier deal was found by Cheapflights users on 3/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
TYS
- AUS
1 stop9h 01m
Frontier
Deal found 3/13![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 3/13![Allegiant Air logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/95:10 pm
TYS
- AUS
1 stop8h 14m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$103
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 March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $105 (Cheapflightsfares) |
One-way from | $49 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $415 |
Good round-trip deal | $260 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 March 17, 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
Sat 4/11
7:00 am-3:24 pm
2 stops9h 24m
Austin Bergstrom
Mon 4/20
2:10 pm-7:56 pm
1 stop4h 46m
$296
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 5/2
6:40 am-11:40 am
2 stops6h 00m
Austin Bergstrom
Wed 5/6
11:45 am-8:50 pm
2 stops8h 05m
$321
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 4/11
6:40 am-11:35 am
2 stops5h 55m
Austin Bergstrom
Mon 4/13
10:10 am-8:20 pm
2 stops9h 10m
$331
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 4/10
8:00 am-12:24 am
2 stops17h 24m
Austin Bergstrom
Mon 4/13
6:45 am-3:28 pm
1 stop7h 43m
$337
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Tue 6/9
12:45 pm-8:15 pm
1 stop8h 30m
Austin Bergstrom
Sun 6/14
11:30 am-10:25 pm
2 stops9h 55m
$344
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Thu 4/16
6:35 am-12:50 pm
2 stops7h 15m
Austin Bergstrom
Fri 4/17
9:10 am-6:10 pm
1 stop8h 00m
$349
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 7/31
6:40 am-11:40 am
2 stops6h 00m
Austin Bergstrom
Sun 8/2
6:45 am-12:05 pm
1 stop4h 20m
$354
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Fri 6/12
6:40 am-10:10 am
1 stop4h 30m
Austin Bergstrom
Mon 6/15
11:40 am-10:20 pm
2 stops9h 40m
$354
Quickest round-trip
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Sat 6/6
8:35 am-1:43 pm
1 stop6h 08m
Austin Bergstrom
Tue 6/9
12:20 pm-5:19 pm
1 stop3h 59m
$375
KnoxvilleAustin
TYS - AUS
TYSAUS
Knoxville McGhee Tyson
Tue 6/9
5:57 pm-12:26 am
1 stop7h 29m
Austin Bergstrom
Tue 6/16
9:45 am-4:34 pm
1 stop5h 49m
$375
Showing 1-10 of 24 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 March.
| 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 March 13, 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 February is currently the most expensive (average of $238). 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 March 17, 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 49% 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 March 17, 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
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
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
Pflugerville
Round Rock
Georgetown
Bastrop
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay
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Other flights to Austin
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Knoxville and Austin flights
Browse other Knoxville and Austin flight options. Last updated on March 17, 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 March 17, 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 March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$390 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$86 | Average$134 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$233 | Average$322 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$279 | Average$364 | FlexibilityNo cancel fee | On-time63% |