Cheap Flights from Knoxville, TN to Austin, TX from $67

One way Round trip

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On Cheapflightsplus.com you will find 2 direct and 138 connecting flights from Knoxville to Austin. You can compare airfare deals from 3 airlines and multiple travel sites from $67, book and save on cheap plane tickets and last minute offers. Also check out TYS-AUS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Knoxville to Austin Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $67 (one-way), $115 (round-trip).

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Best Flights from Knoxville to Austin Today

Take a look at the list of non stop flights and flights with layovers from Knoxville to Austin with the lowest price of $67. The fastest direct flight takes 2h 31m and the fastest connecting – 4h 32m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $67 Find flight	18:48 Knoxville Mc Ghee Tyson	20:25 Austin Austin-Bergstrom Intl	2h 37m	Allegiant Air	G43132
from $181 Find flight	19:38 Knoxville Mc Ghee Tyson	21:09 Austin Austin-Bergstrom Intl	2h 31m	Allegiant Air	G41515
from $67 Find flight	19:30 Knoxville Mc Ghee Tyson	09:35+1 день Austin Austin-Bergstrom Intl	15h 5m layover 9h 34m - Denver	Frontier Airlines	F94369 F91816
from $216 Find flight	12:50 Knoxville Mc Ghee Tyson	17:43 Austin Austin-Bergstrom Intl	5h 53m layover 1h 1m - Orlando	Allegiant Air	G41437 NK509
from $220 Find flight	07:30 Knoxville Mc Ghee Tyson	17:43 Austin Austin-Bergstrom Intl	11h 13m layover 6h 31m - Orlando	Allegiant Air	G41417 NK509
from $232 Find flight	07:30 Knoxville Mc Ghee Tyson	15:18 Austin Austin-Bergstrom Intl	8h 48m layover 4h 0m - Orlando	Allegiant Air	G41417 NK815
from $326 Find flight	17:10 Knoxville Mc Ghee Tyson	20:52 Austin Austin-Bergstrom Intl	4h 42m layover 1h 0m - Houston	United Airlines	UA4854 UA619
from $326 Find flight	07:00 Knoxville Mc Ghee Tyson	11:08 Austin Austin-Bergstrom Intl	5h 8m layover 1h 20m - Houston	United Airlines	UA4913 UA697
from $326 Find flight	07:00 Knoxville Mc Ghee Tyson	12:01 Austin Austin-Bergstrom Intl	6h 1m layover 0h 59m - Chicago	United Airlines	UA776 UA2231
from $326 Find flight	17:46 Knoxville Mc Ghee Tyson	23:00 Austin Austin-Bergstrom Intl	6h 14m layover 1h 4m - Chicago	United Airlines	UA5305 UA457
from $326 Find flight	07:00 Knoxville Mc Ghee Tyson	13:13 Austin Austin-Bergstrom Intl	7h 13m layover 3h 25m - Houston	United Airlines	UA4913 UA1712
from $343 Find flight	16:30 Knoxville Mc Ghee Tyson	13:20+1 день Austin Austin-Bergstrom Intl	21h 50m layover 16h 5m - Denver	United Airlines	UA1819 UA1026
from $369 Find flight	16:30 Knoxville Mc Ghee Tyson	16:39+1 день Austin Austin-Bergstrom Intl	25h 9m layover 19h 24m - Denver	United Airlines	UA1819 UA789
from $369 Find flight	16:30 Knoxville Mc Ghee Tyson	20:53+1 день Austin Austin-Bergstrom Intl	29h 23m layover 23h 38m - Denver	United Airlines	UA1819 UA1942
from $287 Find flight	21:52 Knoxville Mc Ghee Tyson	16:33+1 день Austin Austin-Bergstrom Intl	19h 41m layover 6h 4m - Tampa 7h 42m - Miami	Allegiant Air	G41072 NK2055 NK517
from $321 Find flight	07:15 Knoxville Mc Ghee Tyson	17:26 Austin Austin-Bergstrom Intl	11h 11m layover 2h 13m - Newark 0h 45m - Miami	Allegiant Air	G41396 NK372 NK517

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 09, 2025

Flight Schedule Knoxville (Tennessee) to Austin (Texas)

Full flight schedule will help you in detecting at what time planes fly from Knoxville to Austin. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
18:48 — 20:25	18:48 — 20:25 G43132 Allegiant Air Knoxville — Austin	2h 37m	Find flight from$67
19:38 — 21:09	19:38 — 21:09 G41515 Allegiant Air Knoxville — Austin	2h 31m	Find flight from$181
07:30 — 17:43	07:30 — 09:08 G41417 Allegiant Air Knoxville — Orlando 6h 31m stop 15:39 — 17:43 NK509 Spirit Airlines Orlando — Austin	11h 13m including layover	Find flight from$220
07:30 — 15:18	07:30 — 09:14 G41417 Allegiant Air Knoxville — Orlando 4h stop 13:14 — 15:18 NK815 Spirit Airlines Orlando — Austin	8h 48m including layover	Find flight from$232
08:55 — 23:58	08:55 — 10:33 UA5673 United Airlines Knoxville — Denver 10h 12m stop 20:45 — 23:58 UA1317 United Airlines Denver — Austin	16h 3m including layover	Find flight from$377
08:55 — 20:33	08:55 — 10:33 UA5673 United Airlines Knoxville — Denver 6h 47m stop 18:30 — 21:43 UA1942 United Airlines Denver — Austin	12h 38m including layover	Find flight from$391
09:25 — 13:15	09:25 — 11:06 UA4841 United Airlines Knoxville — Houston 1h 4m stop 12:10 — 13:15 UA5591 United Airlines Houston — Austin	4h 50m including layover	Find flight from$374
09:25 — 15:22	09:25 — 11:06 UA4841 United Airlines Knoxville — Houston 3h 14m stop 14:20 — 15:22 UA2483 United Airlines Houston — Austin	6h 57m including layover	Find flight from$374
10:55 — 16:09	10:55 — 11:59 UA5300 United Airlines Knoxville — Chicago 1h 11m stop 13:10 — 16:09 UA2341 United Airlines Chicago — Austin	6h 14m including layover	Find flight from$374
11:50 — 15:22	11:50 — 13:26 UA4302 United Airlines Knoxville — Houston 54m stop 14:20 — 15:22 UA2483 United Airlines Houston — Austin	4h 32m including layover	Find flight from$374
11:50 — 17:22	11:50 — 13:26 UA4302 United Airlines Knoxville — Houston 2h 54m stop 16:20 — 17:22 UA1284 United Airlines Houston — Austin	6h 32m including layover	Find flight from$374
12:50 — 17:43	12:50 — 14:38 G41437 Allegiant Air Knoxville — Orlando 1h 1m stop 15:39 — 17:43 NK509 Spirit Airlines Orlando — Austin	5h 53m including layover	Find flight from$216
16:30 — 13:20 +1 day	16:30 — 18:02 UA1819 United Airlines Knoxville — Denver 16h 5m stop 10:07 — 13:20 UA1026 United Airlines Denver — Austin	21h 50m including layover	Find flight from$343
16:30 — 16:39 +1 day	16:30 — 18:02 UA1819 United Airlines Knoxville — Denver 19h 24m stop 13:26 — 16:39 UA789 United Airlines Denver — Austin	25h 9m including layover	Find flight from$369
17:10 — 20:52	17:10 — 18:50 UA4854 United Airlines Knoxville — Houston 1h stop 19:50 — 20:52 UA619 United Airlines Houston — Austin	4h 42m including layover	Find flight from$326
17:10 — 23:00	16:40 — 18:20 UA4854 United Airlines Knoxville — Houston 3h 12m stop 22:02 — 23:00 UA1179 United Airlines Houston — Austin	6h 50m including layover	Find flight from$326
19:30 — 09:35 +1 day	19:30 — 20:46 F94369 Frontier Airlines Knoxville — Denver 9h 34m stop 06:20 — 09:35 F91816 Frontier Airlines Denver — Austin	15h 5m including layover	Find flight from$67
22:35 — 19:12 +1 day	19:30 — 20:46 F94369 Frontier Airlines Knoxville — Denver 16h 9m stop 17:13 — 20:24 F92890 Frontier Airlines Denver — Austin	21h 37m including layover	Find flight from$67
10:55 — 23:58	10:55 — 11:59 UA5300 United Airlines Knoxville — Chicago 1h 16m stop 13:15 — 15:05 UA1882 United Airlines Chicago — Denver 5h 40m stop 20:45 — 23:58 UA1317 United Airlines Denver — Austin	14h 3m including layover	Find flight from$383
14:06 — 21:56	14:06 — 15:12 UA3716 United Airlines Knoxville — Chicago 2h 3m stop 17:15 — 20:13 UA1899 United Airlines Chicago — Houston 45m stop 20:58 — 21:56 UA1410 United Airlines Houston — Austin	8h 50m including layover	Find flight from$380
21:52 — 16:33 +1 day	21:52 — 23:32 G41072 Allegiant Air Knoxville — Tampa 6h 4m stop 05:36 — 06:40 NK2055 Spirit Airlines Tampa — Miami 7h 42m stop 14:22 — 16:33 NK517 Spirit Airlines Miami — Austin	19h 41m including layover	Find flight from$287

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on May 9, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Knoxville to Austin depends on and how to choose the most interesting flight option for you.

Distance between Knoxville and Austin is 1418 miles. Time difference between the cities is 1h. Airplanes depart 05:45 to 22:35 from 1 Knoxville airport and arrive 05:45 to 22:35 to 3 Austin airports. Average flight time is 2h 34m.

The fastest flight 2h 31m
Average flight time 2h 34m
The earliest flight 05:45
The latest flight 22:35
Distance 882 ml

The cheapest months to travel to Austin are november (from 67 $), december (from 67 $), january (from 232 $).

What is the lowest airfare Knoxville to Austin?

The cheapest plane ticket found by our users is $67. This airfare is for economy class on one-way G43132 flight by Allegiant Air for December 6, 2024 which leaves Mc Ghee Tyson in Knoxville at 18:48 am and arrives at Austin Austin-Bergstrom Intl at 20:25.

Economy class

$67

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Business class

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First class

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Popular Airlines on the Route

The flight Knoxville — Austin is served by 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 2 departures per week at the price of from $ 67 . And the most expensive tickets are offered by United Airlines airline - from $ 692.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is G41515 by Allegiant Air takes 2h 31m and the cheapest is G43132 by Allegiant Air for $67.

G4 - Allegiant Air

from $67

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Connecting Flights

There are 138 flights with layovers on the route. The fastest connecting flight is UA4302 by United Airlines takes 4h 32m and the cheapest is G43132 by Allegiant Air for $67.

F9 - Frontier Airlines

from $67

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UA - United Airlines

from $326

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G4 - Allegiant Air

from $216

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Airports

You can fly from Knoxville to Austin from 1 airports (Mc Ghee Tyson).

Knoxville airports

Mc Ghee Tyson-TYS

from $67
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Austin airports

Austin-Bergstrom Intl-AUS

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Austin-ASQ

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Camp Maybry AHP-MMR

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Airplanes

There are flights to Austin from Knoxville by 3 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Knoxville

You may also consider searching for discounted plane tickets to some other popular places from Knoxville within United States.

Knoxville — Orlando

from $73

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Knoxville — Las Vegas

from $74

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Knoxville — Chicago

from $76

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Knoxville — Denver

from $74

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Knoxville — Miami

from $66

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Knoxville — Boston

from $69

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Knoxville — Houston

from $54

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Knoxville — New Orleans

from $56

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Knoxville — Tampa

from $80

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Knoxville — Austin

from $54

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Top International Destinations from Knoxville

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Knoxville — Cancun

from $69

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Knoxville — Panama City

from $61

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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