Cheap Flights from Austin, TX to Knoxville, TN from $72

Return flight: Knoxville – Austin

On Cheapflightsplus.com you will find 19 connecting flights from Austin to Knoxville. You can compare airfare deals from 3 airlines and multiple travel sites from $72, 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: $72 (one-way), $123 (round-trip).
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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 Arrival Flight Details Flight Duration Price
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$312
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$386
07:00 — 14:58
07:00 — 08:21 UA361 United Airlines
Austin — Denver
1h 45m stop
10:10 — 15:01 UA2420 United Airlines
Denver — Knoxville
6h 58m
including layover
Find flight
from$554
07:05 — 19:36
07:05 — 11:25 UA6174 United Airlines
Austin — Washington D.C.
6h 19m stop
17:44 — 19:36 UA4914 United Airlines
Washington D.C. — Knoxville
11h 31m
including layover
Find flight
from$432
07:05 — 14:43
07:05 — 11:25 UA6174 United Airlines
Austin — Washington D.C.
1h 30m stop
12:55 — 14:43 UA4251 United Airlines
Washington D.C. — Knoxville
6h 38m
including layover
Find flight
from$537
07:05 — 14:39
07:05 — 11:12 UA1727 United Airlines
Austin — Washington D.C.
1h 43m stop
12:55 — 14:39 UA4227 United Airlines
Washington D.C. — Knoxville
6h 34m
including layover
Find flight
from$544
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$72
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$369
12:10 — 19:36
12:10 — 16:30 UA6142 United Airlines
Austin — Washington D.C.
1h 14m stop
17:44 — 19:36 UA4914 United Airlines
Washington D.C. — Knoxville
6h 26m
including layover
Find flight
from$537
12:15 — 20:02
12:09 — 13:16 UA669 United Airlines
Austin — Houston
3h 24m stop
16:45 — 20:02 UA4900 United Airlines
Houston — Knoxville
6h 47m
including layover
Find flight
from$386
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$448
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$262
14:20 — 20:03
14:20 — 15:27 UA1633 United Airlines
Austin — Houston
1h 18m stop
16:45 — 20:03 UA4900 United Airlines
Houston — Knoxville
4h 43m
including layover
Find flight
from$259
14:20 — 23:46
14:20 — 15:27 UA1633 United Airlines
Austin — Houston
5h 1m stop
20:28 — 23:46 UA4810 United Airlines
Houston — Knoxville
8h 26m
including layover
Find flight
from$441
14:22 — 22:36
14:22 — 17:10 UA210 United Airlines
Austin — Chicago
2h 41m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
7h 14m
including layover
Find flight
from$259
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$349
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$262
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$245
18:15 — 14:16
+1 day
18:15 — 22:05 NK510 Spirit Airlines
Austin — Orlando
7h 25m stop
05:30 — 08:31 NK1848 Spirit Airlines
Orlando — Boston
3h 4m stop
11:35 — 14:16 G43039 Allegiant Air
Boston — Knoxville
19h 1m
including layover
Find flight
from$498
*Departure and arrival times - local. Updated on January 15, 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 06:10 to 18:15 from 3 Austin airports and arrive 06:10 to 18:15 to 1 Knoxville airport. Average flight time is 6h 58m.

  • The fastest flight 4h 31m
  • Average flight time 6h 58m
  • The earliest flight 06:10
  • The latest flight 18:15
  • Distance 882 ml

The cheapest months to travel to Knoxville are february (from 72 $), december (from 122 $), january (from 259 $).

The most expensive months are november (from 296 $), january (from 259 $), december (from 122 $).

What is the lowest airfare Austin to Knoxville?

The cheapest plane ticket found by our users is $72. This airfare is for economy class on one-way F91815 flight by Frontier Airlines for February 1, 2025 which leaves Austin-Bergstrom Intl in Austin at 09:14 am and arrives at Knoxville Mc Ghee Tyson at 16:42.

Economy class
$72
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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 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 1 departures per week at the price of from $ 72 . And the most expensive tickets are offered by United Airlines airline - from $ 554.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 19 flights with layovers on the route. The fastest connecting flight is UA1326 by United Airlines takes 4h 31m and the cheapest is F91815 by Frontier Airlines for $72.

  • F9 - Frontier Airlines
    from $72
    Find
  • UA - United Airlines
    from $259
    Find
  • NK - Spirit Airlines
    from $245
    Find
See more connecting flights

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 $72
    Find
  • Austin-ASQ
    Find
  • Camp Maybry AHP-MMR
    Find

Knoxville airports

  • Mc Ghee Tyson-TYS
    Find

How to book a plane ticket yourself?

How to book an air 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.

    To find a plane ticket, please select dates.

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