Cheap Flights from Austin, TX to Knoxville, TN from $66

One way Round trip

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On Cheapflightsplus.com you will find 3 direct and 84 connecting flights from Austin to Knoxville. You can compare airfare deals from 4 airlines and multiple travel sites from $66, book and save on cheap plane tickets and last minute offers. Also check out AUS-TYS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Austin to Knoxville 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: $66 (one-way), $113 (round-trip).

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Best Flights from Austin to Knoxville Today

Take a look at the list of non stop flights and flights with layovers from Austin to Knoxville with the lowest price of $66. The fastest direct flight takes 2h 7m and the fastest connecting – 4h 31m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $66 Find flight	14:50 Austin Austin-Bergstrom Intl	17:58 Knoxville Mc Ghee Tyson	2h 8m	Allegiant Air	G43129
from $72 Find flight	15:41 Austin Austin-Bergstrom Intl	18:48 Knoxville Mc Ghee Tyson	2h 7m	Allegiant Air	G41497
from $163 Find flight	12:46 Austin Austin-Bergstrom Intl	15:54 Knoxville Mc Ghee Tyson	2h 8m	Allegiant Air	G41522
from $91 Find flight	09:14 Austin Austin-Bergstrom Intl	16:42 Knoxville Mc Ghee Tyson	6h 28m layover 0h 53m - Denver	Frontier Airlines	F91815 F92374
from $94 Find flight	20:03 Austin Austin-Bergstrom Intl	18:29+1 день Knoxville Mc Ghee Tyson	21h 26m layover 16h 23m - Denver	Frontier Airlines	F92889 F92374
from $326 Find flight	17:59 Austin Austin-Bergstrom Intl	23:30 Knoxville Mc Ghee Tyson	4h 31m layover 1h 8m - Houston	United Airlines	UA1326 UA4810
from $326 Find flight	14:30 Austin Austin-Bergstrom Intl	20:02 Knoxville Mc Ghee Tyson	4h 32m layover 1h 8m - Houston	United Airlines	UA477 UA4900
from $326 Find flight	12:15 Austin Austin-Bergstrom Intl	18:07 Knoxville Mc Ghee Tyson	4h 52m layover 1h 29m - Houston	United Airlines	UA669 UA4890
from $326 Find flight	10:00 Austin Austin-Bergstrom Intl	17:05 Knoxville Mc Ghee Tyson	6h 5m layover 1h 30m - Chicago	United Airlines	UA1577 UA5379
from $326 Find flight	12:15 Austin Austin-Bergstrom Intl	20:02 Knoxville Mc Ghee Tyson	6h 47m layover 3h 24m - Houston	United Airlines	UA669 UA4900
from $327 Find flight	14:27 Austin Austin-Bergstrom Intl	20:35 Knoxville Mc Ghee Tyson	5h 8m layover 0h 40m - Chicago	United Airlines	UA210 UA1238
from $328 Find flight	14:20 Austin Austin-Bergstrom Intl	20:03 Knoxville Mc Ghee Tyson	4h 43m layover 1h 18m - Houston	United Airlines	UA1633 UA4900
from $328 Find flight	09:44 Austin Austin-Bergstrom Intl	16:59 Knoxville Mc Ghee Tyson	6h 15m layover 1h 37m - Chicago	United Airlines	UA2658 UA5379
from $378 Find flight	12:25 Austin Austin-Bergstrom Intl	20:02 Knoxville Mc Ghee Tyson	6h 37m layover 3h 13m - Houston	United Airlines	UA1955 UA4900
from $253 Find flight	19:39 Austin Austin-Bergstrom Intl	14:00+1 день Knoxville Mc Ghee Tyson	17h 21m layover 6h 47m - Miami 2h 54m - Newark	Spirit Airlines	NK865 NK385 G41397
from $310 Find flight	18:15 Austin Austin-Bergstrom Intl	12:38+1 день Knoxville Mc Ghee Tyson	17h 23m layover 7h 35m - Orlando 3h 44m - Miami	Spirit Airlines	NK510 NK195 G41428

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

Flight Schedule Austin (Texas) to Knoxville (Tennessee)

Full flight schedule will help you in detecting at what time planes fly from Austin to Knoxville. 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
12:46 — 15:54	12:46 — 15:54 G41522 Allegiant Air Austin — Knoxville	2h 8m	Find flight from$163
14:50 — 17:58	14:50 — 17:58 G43129 Allegiant Air Austin — Knoxville	2h 8m	Find flight from$66
15:41 — 18:48	15:41 — 18:48 G41497 Allegiant Air Austin — Knoxville	2h 7m	Find flight from$72
05:30 — 22:30	05:30 — 06:53 UA1218 United Airlines Austin — Denver 10h 40m stop 17:33 — 22:30 UA4798 United Airlines Denver — Knoxville	16h including layover	Find flight from$380
06:10 — 18:18	06:10 — 07:07 NK1503 Spirit Airlines Austin — Las Vegas 4h 31m stop 11:38 — 18:18 G41399 Allegiant Air Las Vegas — Knoxville	11h 8m including layover	Find flight from$395
07:00 — 13:15	07:00 — 09:46 UA216 United Airlines Austin — Chicago 49m stop 10:35 — 13:15 UA4505 United Airlines Chicago — Knoxville	5h 15m including layover	Find flight from$489
07:15 — 13:47	07:15 — 08:19 UA656 United Airlines Austin — Houston 2h 11m stop 10:30 — 13:47 UA4887 United Airlines Houston — Knoxville	5h 32m including layover	Find flight from$435
09:14 — 16:42	17:27 — 18:50 F91815 Frontier Airlines Austin — Denver 53m stop 10:36 — 15:16 F92374 Frontier Airlines Denver — Knoxville	6h 28m including layover	Find flight from$91
09:44 — 16:59	09:44 — 12:33 UA2658 United Airlines Austin — Chicago 1h 37m stop 14:10 — 16:59 UA5379 United Airlines Chicago — Knoxville	6h 15m including layover	Find flight from$328
10:00 — 17:05	10:00 — 12:45 UA1577 United Airlines Austin — Chicago 1h 30m stop 14:15 — 17:05 UA5379 United Airlines Chicago — Knoxville	6h 5m including layover	Find flight from$326
10:00 — 16:55	09:20 — 12:05 UA1577 United Airlines Austin — Chicago 1h 20m stop 14:05 — 16:55 UA5272 United Airlines Chicago — Knoxville	5h 55m including layover	Find flight from$374
11:24 — 22:29	10:45 — 12:08 UA779 United Airlines Austin — Denver 4h 46m stop 17:33 — 22:30 UA4798 United Airlines Denver — Knoxville	10h 5m including layover	Find flight from$395
12:15 — 18:07	12:09 — 13:16 UA669 United Airlines Austin — Houston 1h 29m stop 14:50 — 18:07 UA4890 United Airlines Houston — Knoxville	4h 52m including layover	Find flight from$326
13:00 — 22:24	13:00 — 15:43 UA210 United Airlines Austin — Chicago 3h 57m stop 19:40 — 22:24 UA454 United Airlines Chicago — Knoxville	8h 24m including layover	Find flight from$374
13:39 — 23:00	13:39 — 16:26 UA231 United Airlines Austin — Chicago 3h 49m stop 20:15 — 23:00 UA1871 United Airlines Chicago — Knoxville	8h 21m including layover	Find flight from$332
14:30 — 20:02	14:10 — 15:17 UA477 United Airlines Austin — Houston 1h 8m stop 16:45 — 20:02 UA4900 United Airlines Houston — Knoxville	4h 32m including layover	Find flight from$326
16:21 — 23:30	16:21 — 17:25 UA685 United Airlines Austin — Houston 2h 48m stop 20:13 — 23:30 UA4810 United Airlines Houston — Knoxville	6h 9m including layover	Find flight from$374
16:45 — 22:29 +1 day	16:45 — 18:07 UA2447 United Airlines Austin — Denver 23h 24m stop 17:31 — 22:29 UA4798 United Airlines Denver — Knoxville	28h 44m including layover	Find flight from$441
17:59 — 23:30	17:40 — 18:49 UA1326 United Airlines Austin — Houston 1h 8m stop 20:13 — 23:30 UA4810 United Airlines Houston — Knoxville	4h 31m including layover	Find flight from$326
20:03 — 18:29 +1 day	20:03 — 21:22 F92889 Frontier Airlines Austin — Denver 16h 23m stop 13:45 — 18:29 F92374 Frontier Airlines Denver — Knoxville	21h 26m including layover	Find flight from$94
05:15 — 17:05	05:15 — 06:13 UA1966 United Airlines Austin — Houston 2h 17m stop 08:30 — 11:12 UA487 United Airlines Houston — Chicago 3h 3m stop 14:15 — 17:05 UA5379 United Airlines Chicago — Knoxville	10h 50m including layover	Find flight from$334
18:15 — 12:38 +1 day	18:15 — 22:05 NK510 Spirit Airlines Austin — Orlando 7h 35m stop 05:40 — 06:45 NK195 Spirit Airlines Orlando — Miami 3h 44m stop 10:29 — 12:38 G41428 Allegiant Air Miami — Knoxville	17h 23m including layover	Find flight from$310
18:30 — 14:03 +1 day	18:30 — 22:05 NK510 Spirit Airlines Austin — Orlando 6h 55m stop 05:00 — 07:30 NK316 Spirit Airlines Orlando — Newark 4h 25m stop 11:55 — 14:03 G41436 Allegiant Air Newark — Knoxville	18h 33m including layover	Find flight from$578
19:39 — 14:00 +1 day	19:39 — 23:18 NK865 Spirit Airlines Austin — Miami 6h 47m stop 06:05 — 09:01 NK385 Spirit Airlines Miami — Newark 2h 54m stop 11:55 — 14:00 G41397 Allegiant Air Newark — Knoxville	17h 21m including layover	Find flight from$253
19:39 — 14:28 +1 day	19:39 — 23:18 NK865 Spirit Airlines Austin — Miami 7h 27m stop 06:45 — 07:52 NK203 Spirit Airlines Miami — Orlando 4h 46m stop 12:38 — 14:28 G43043 Allegiant Air Orlando — Knoxville	17h 49m including layover	Find flight from$346

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 Austin to Knoxville depends on and how to choose the most interesting flight option for you.

Distance between Austin and Knoxville is 1418 miles. Time difference between the cities is 1h. Airplanes depart 05:15 to 20:03 from 3 Austin airports and arrive 05:15 to 20:03 to 1 Knoxville airport. Average flight time is 2h 8m.

The fastest flight 2h 7m
Average flight time 2h 8m
The earliest flight 05:15
The latest flight 20:03
Distance 882 ml

The cheapest months to travel to Knoxville are december (from 66 $), november (from 72 $), february (from 91 $).

The most expensive months are january (from 253 $), february (from 91 $), november (from 72 $).

What is the lowest airfare Austin to Knoxville?

The cheapest plane ticket found by our users is $66. This airfare is for economy class on one-way G43129 flight by Allegiant Air for December 13, 2024 which leaves Austin-Bergstrom Intl in Austin at 14:50 am and arrives at Knoxville Mc Ghee Tyson at 17:58.

Economy class

$66

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Business class

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First class

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Popular Airlines on the Route

The flight Austin — Knoxville is served by 4 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 2 departures per week at the price of from $ 91 . And the most expensive tickets are offered by United Airlines airline - from $ 805.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is G41497 by Allegiant Air takes 2h 7m and the cheapest is G43129 by Allegiant Air for $66.

G4 - Allegiant Air

from $66

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Connecting Flights

There are 84 flights with layovers on the route. The fastest connecting flight is UA1326 by United Airlines takes 4h 31m and the cheapest is G43129 by Allegiant Air for $91.

F9 - Frontier Airlines

from $91

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UA - United Airlines

from $326

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NK - Spirit Airlines

from $253

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G4 - Allegiant Air

from $429

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Airports

You can fly from Austin to Knoxville from 3 airports (Austin-Bergstrom Intl, Austin, Camp Maybry AHP).

Austin airports

Austin-Bergstrom Intl-AUS

from $66
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Austin-ASQ

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Camp Maybry AHP-MMR

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Knoxville airports

Mc Ghee Tyson-TYS

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Airplanes

There are flights to Knoxville from Austin by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Austin

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

Austin — Las Vegas

from $66

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Austin — New York

from $78

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Austin — Denver

from $67

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Austin — Boston

from $62

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Austin — Orlando

from $73

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Austin — Seattle

from $66

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Austin — Miami

from $57

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Austin — Dallas

from $54

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Austin — Atlanta

from $57

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Austin — Los Angeles

from $68

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Top International Destinations from Austin

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.

Austin — London

from $56

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Austin — Cancun

from $54

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Austin — Mexico City

from $64

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Austin — Paris

from $56

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Austin — Toronto

from $67

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Austin — Madrid

from $72

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Austin — Puerto Vallarta

from $61

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Austin — Montreal

from $76

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Austin — Dublin

from $79

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Austin — San Juan

from $62

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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.
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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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