Cheap Flights from Austin, TX to Knoxville, TN from $40

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Knoxville – Austin

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 2 direct and 293 connecting flights from Austin to Knoxville. You can compare airfare deals from 5 airlines and multiple travel sites from $40, 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: $40 (one-way), $69 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

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 $40. The fastest direct flight takes 2h 17m and the fastest connecting – 4h 19m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $40 Find flight	13:28 Austin Austin-Bergstrom Intl	16:45 Knoxville Mc Ghee Tyson	2h 17m	Allegiant Air	G41431
from $59 Find flight	09:05 Austin Austin-Bergstrom Intl	12:22 Knoxville Mc Ghee Tyson	2h 17m	Allegiant Air	G43032
from $64 Find flight	08:28 Austin Austin-Bergstrom Intl	10:24+1 день Knoxville Mc Ghee Tyson	24h 56m layover 20h 39m - Sarasota	Allegiant Air	G43007 G43002
from $69 Find flight	08:28 Austin Austin-Bergstrom Intl	13:23+1 день Knoxville Mc Ghee Tyson	27h 55m layover 23h 38m - Sarasota	Allegiant Air	G41367 G43001
from $75 Find flight	19:28 Austin Austin-Bergstrom Intl	15:12+1 день Knoxville Mc Ghee Tyson	18h 44m layover 14h 37m - Sanford	Allegiant Air	G42825 G41411
from $84 Find flight	08:37 Austin Austin-Bergstrom Intl	13:23+1 день Knoxville Mc Ghee Tyson	27h 46m layover 23h 32m - Sarasota	Allegiant Air	G43006 G43001
from $90 Find flight	20:01 Austin Austin-Bergstrom Intl	10:11+1 день Knoxville Mc Ghee Tyson	13h 10m layover 8h 54m - Orlando	Allegiant Air	G41298 G43064
from $94 Find flight	09:50 Austin Austin-Bergstrom Intl	11:18+1 день Knoxville Mc Ghee Tyson	24h 28m layover 19h 31m - Miami	Spirit Airlines	NK512 G4531
from $96 Find flight	06:00 Austin Austin-Bergstrom Intl	16:29 Knoxville Mc Ghee Tyson	9h 29m layover 4h 20m - Denver	Frontier Airlines	F91815 F92374
from $98 Find flight	11:50 Austin Austin-Bergstrom Intl	13:38+1 день Knoxville Mc Ghee Tyson	24h 48m layover 18h 7m - Las Vegas	Allegiant Air	G428 G47
from $102 Find flight	09:50 Austin Austin-Bergstrom Intl	15:36+1 день Knoxville Mc Ghee Tyson	28h 46m layover 23h 49m - Miami	Spirit Airlines	NK512 G42112
from $109 Find flight	10:19 Austin Austin-Bergstrom Intl	18:38 Knoxville Mc Ghee Tyson	7h 19m layover 2h 31m - Chicago	United Airlines	UA202 UA454
from $110 Find flight	10:44 Austin Austin-Bergstrom Intl	14:18+1 день Knoxville Mc Ghee Tyson	26h 34m layover 22h 29m - Sanford	Spirit Airlines	NK2289 G42860
from $111 Find flight	10:00 Austin Austin-Bergstrom Intl	12:41+1 день Knoxville Mc Ghee Tyson	25h 41m layover 4h 22m - Indianapolis 15h 3m - Clearwater	Allegiant Air	G4589 G4624 G43050
from $118 Find flight	13:22 Austin Austin-Bergstrom Intl	18:14+1 день Knoxville Mc Ghee Tyson	27h 52m layover 17h 14m - Fletcher 5h 10m - Sanford	Allegiant Air	G41872 G4270 G43040
from $118 Find flight	13:22 Austin Austin-Bergstrom Intl	18:14+1 день Knoxville Mc Ghee Tyson	27h 52m layover 5h 16m - Fletcher 17h 8m - Sanford	Allegiant Air	G41872 G41208 G43040

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 25, 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
09:05 — 12:22	09:05 — 12:22 G43032 Allegiant Air Austin — Knoxville	2h 17m	Find flight from$59
13:28 — 16:45	13:28 — 16:45 G41431 Allegiant Air Austin — Knoxville	2h 17m	Find flight from$40
06:00 — 16:29	06:00 — 07:30 F91815 Frontier Airlines Austin — Denver 4h 20m stop 11:41 — 16:35 F92374 Frontier Airlines Denver — Knoxville	9h 29m including layover	Find flight from$96
07:15 — 08:02 +1 day	07:15 — 11:02 NK2719 Spirit Airlines Austin — Miami 18h 58m stop 06:00 — 08:02 G4520 Allegiant Air Miami — Knoxville	23h 47m including layover	Find flight from$129
08:28 — 10:24 +1 day	08:28 — 11:57 G43007 Allegiant Air Austin — Sarasota 20h 39m stop 11:35 — 13:23 G43002 Allegiant Air Sarasota — Knoxville	24h 56m including layover	Find flight from$64
08:28 — 13:23 +1 day	08:28 — 11:57 G41367 Allegiant Air Austin — Sarasota 23h 38m stop 11:35 — 13:23 G43001 Allegiant Air Sarasota — Knoxville	27h 55m including layover	Find flight from$69
09:50 — 11:18 +1 day	09:50 — 13:44 NK512 Spirit Airlines Austin — Miami 19h 31m stop 09:15 — 11:18 G4531 Allegiant Air Miami — Knoxville	24h 28m including layover	Find flight from$94
10:19 — 18:38	10:19 — 13:15 UA202 United Airlines Austin — Chicago 2h 31m stop 15:46 — 18:38 UA454 United Airlines Chicago — Knoxville	7h 19m including layover	Find flight from$109
10:44 — 14:18 +1 day	10:44 — 14:14 NK2289 Spirit Airlines Austin — Sanford 22h 29m stop 12:43 — 14:18 G42860 Allegiant Air Sanford — Knoxville	26h 34m including layover	Find flight from$110
11:48 — 13:38 +1 day	11:48 — 12:38 G465 Allegiant Air Austin — Las Vegas 18h 7m stop 06:45 — 13:38 G47 Allegiant Air Las Vegas — Knoxville	24h 50m including layover	Find flight from$119
11:50 — 13:38 +1 day	11:48 — 12:38 G428 Allegiant Air Austin — Las Vegas 18h 7m stop 06:45 — 13:40 G47 Allegiant Air Las Vegas — Knoxville	24h 48m including layover	Find flight from$98
19:28 — 15:12 +1 day	19:28 — 23:00 G42825 Allegiant Air Austin — Sanford 14h 37m stop 13:37 — 15:12 G41411 Allegiant Air Sanford — Knoxville	18h 44m including layover	Find flight from$75
19:28 — 19:11 +1 day	20:01 — 23:33 G42825 Allegiant Air Austin — Sanford 18h 36m stop 19:45 — 21:20 G42962 Allegiant Air Sanford — Knoxville	22h 43m including layover	Find flight from$75
20:01 — 10:11 +1 day	20:01 — 23:33 G42825 Allegiant Air Austin — Orlando 8h 54m stop 08:27 — 10:11 G43050 Allegiant Air Orlando — Knoxville	13h 10m including layover	Find flight from$81
20:01 — 10:11 +1 day	20:01 — 23:33 G41298 Allegiant Air Austin — Orlando 8h 54m stop 08:27 — 10:11 G43064 Allegiant Air Orlando — Knoxville	13h 10m including layover	Find flight from$90
13:22 — 18:14 +1 day	13:22 — 16:46 G41872 Allegiant Air Austin — Fletcher 17h 14m stop 10:00 — 11:29 G4270 Allegiant Air Fletcher — Sanford 5h 10m stop 16:39 — 18:14 G43040 Allegiant Air Sanford — Knoxville	27h 52m including layover	Find flight from$118

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

*Departure and arrival times - local. Updated on June 25, 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 05:00 to 20:57 from 3 Austin airports and arrive 05:00 to 20:57 to 1 Knoxville airport. Average flight time is 2h 17m.

The fastest flight 2h 17m
Average flight time 2h 17m
The earliest flight 05:00
The latest flight 20:57
Distance 882 ml

The cheapest months to travel to Knoxville are august (from 54 $), july (from 79 $), may (from 109 $).

The most expensive months are october (from 136 $), september (from 126 $), june (from 112 $).

What is the lowest airfare Austin to Knoxville?

The cheapest plane ticket found by our users is $40. This airfare is for economy class on one-way G41431 flight by Allegiant Air for August 15, 2025 which leaves Austin-Bergstrom Intl in Austin at 13:28 am and arrives at Knoxville Mc Ghee Tyson at 16:45.

Economy class

$40

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Austin — Knoxville is served by 5 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 2 departures per week at the price of from $ 946 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 946.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is G41431 by Allegiant Air takes 2h 17m and the cheapest is G41431 by Allegiant Air for $40.

G4 - Allegiant Air

from $40

Find

See more direct flights

Connecting Flights

There are 293 flights with layovers on the route. The fastest connecting flight is UA1646 by United Airlines takes 4h 19m and the cheapest is G41431 by Allegiant Air for $64.

AS - Alaska Airlines

from $946

Find
F9 - Frontier Airlines

from $96

Find
UA - United Airlines

from $109

Find
G4 - Allegiant Air

from $64

Find
NK - Spirit Airlines

from $94

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 $40
Find
Austin-ASQ

Find
Camp Maybry AHP-MMR

Find

Knoxville airports

Mc Ghee Tyson-TYS

Find

Airplanes

There are flights to Knoxville from Austin by 5 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

Find
Austin — New York

from $78

Find
Austin — Denver

from $67

Find
Austin — Boston

from $62

Find
Austin — Orlando

from $73

Find
Austin — Seattle

from $66

Find
Austin — Miami

from $57

Find
Austin — Dallas

from $54

Find
Austin — Atlanta

from $57

Find
Austin — Los Angeles

from $68

Find

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

Find
Austin — Cancun

from $54

Find
Austin — Mexico City

from $64

Find
Austin — Paris

from $56

Find
Austin — Toronto

from $67

Find
Austin — Madrid

from $72

Find
Austin — Puerto Vallarta

from $61

Find
Austin — Montreal

from $76

Find
Austin — Dublin

from $79

Find
Austin — San Juan

from $62

Find

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.
To find a plane ticket, please select dates.