Cheap Flights from Knoxville, TN to Austin, TX from $46

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Austin – Knoxville

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 2 direct and 366 connecting flights from Knoxville to Austin. You can compare airfare deals from 4 airlines and multiple travel sites from $46, 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: $46 (one-way), $79 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

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 $46. The fastest direct flight takes 2h 20m and the fastest connecting – 4h 11m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $46 Find flight	06:55 Knoxville Mc Ghee Tyson	08:15 Austin Austin-Bergstrom Intl	2h 20m	Allegiant Air	G41410
from $63 Find flight	11:06 Knoxville Mc Ghee Tyson	12:38 Austin Austin-Bergstrom Intl	2h 32m	Allegiant Air	G43061

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 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
06:00 — 20:02	06:00 — 07:37 G43063 Allegiant Air Knoxville — Orlando 10h 28m stop 18:05 — 20:02 NK1618 Spirit Airlines Orlando — Austin	15h 2m including layover	Find flight from$129
06:00 — 18:20	06:00 — 07:34 G41439 Allegiant Air Knoxville — Orlando 8h 45m stop 16:19 — 18:20 NK2288 Spirit Airlines Orlando — Austin	13h 20m including layover	Find flight from$135
06:55 — 08:15	06:55 — 08:15 G41410 Allegiant Air Knoxville — Austin	2h 20m	Find flight from$46
07:00 — 11:54	07:00 — 07:57 UA1594 United Airlines Knoxville — Chicago 1h 3m stop 09:04 — 11:58 UA301 United Airlines Chicago — Austin	5h 54m including layover	Find flight from$136
07:00 — 13:09	07:00 — 08:24 UA4913 United Airlines Knoxville — Houston 3h 43m stop 12:07 — 13:09 UA6180 United Airlines Houston — Austin	7h 9m including layover	Find flight from$136
07:15 — 13:25	07:15 — 09:05 G41396 Allegiant Air Knoxville — Newark 1h 11m stop 10:16 — 13:25 NK2118 Spirit Airlines Newark — Austin	7h 10m including layover	Find flight from$117
08:52 — 16:30	21:34 — 23:34 G42120 Allegiant Air Knoxville — Miami 3h 24m stop 20:45 — 23:03 NK2722 Spirit Airlines Miami — Austin	8h 38m including layover	Find flight from$132
11:01 — 11:29 +1 day	11:01 — 12:19 G41414 Allegiant Air Knoxville — Minneapolis 20h 21m stop 08:40 — 11:29 SY1685 Sun Country Airlines Minneapolis — Austin	25h 28m including layover	Find flight from$122
11:06 — 12:38	11:06 — 12:38 G43061 Allegiant Air Knoxville — Austin	2h 32m	Find flight from$63
11:23 — 08:55 +1 day	11:08 — 13:12 G4502 Allegiant Air Knoxville — Miami 17h 37m stop 07:00 — 08:55 NK517 Spirit Airlines Miami — Austin	22h 32m including layover	Find flight from$126
14:28 — 19:14 +1 day	14:28 — 15:35 G444 Allegiant Air Knoxville — Las Vegas 22h 43m stop 14:18 — 19:14 NK2627 Spirit Airlines Las Vegas — Austin	29h 46m including layover	Find flight from$134
15:00 — 19:15	15:00 — 16:31 G43024 Allegiant Air Knoxville — Sanford 1h 3m stop 17:34 — 19:15 G42917 Allegiant Air Sanford — Austin	5h 15m including layover	Find flight from$114
15:01 — 19:11	15:01 — 16:32 G41396 Allegiant Air Knoxville — Sanford 1h 3m stop 17:35 — 19:11 G41242 Allegiant Air Sanford — Austin	5h 10m including layover	Find flight from$113
17:30 — 23:40	17:30 — 19:01 F94369 Frontier Airlines Knoxville — Denver 1h 23m stop 20:24 — 23:40 F92890 Frontier Airlines Denver — Austin	7h 10m including layover	Find flight from$107
18:15 — 19:15 +1 day	18:15 — 19:47 G41418 Allegiant Air Knoxville — Sanford 21h 47m stop 17:34 — 19:15 G42917 Allegiant Air Sanford — Austin	26h including layover	Find flight from$112

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

*Departure and arrival times - local. Updated on September 15, 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 21:34 from 1 Knoxville airport and arrive 05:45 to 21:34 to 3 Austin airports. Average flight time is 2h 26m.

The fastest flight 2h 20m
Average flight time 2h 26m
The earliest flight 05:45
The latest flight 21:34
Distance 882 ml

The cheapest months to travel to Austin are july (from 46 $), august (from 50 $), june (from 54 $).

The most expensive months are september (from 175 $), october (from 126 $), may (from 63 $).

What is the lowest airfare Knoxville to Austin?

The cheapest plane ticket found by our users is $46. This airfare is for economy class on one-way G41410 flight by Allegiant Air for July 4, 2025 which leaves Mc Ghee Tyson in Knoxville at 06:55 am and arrives at Austin Austin-Bergstrom Intl at 08:15.

Economy class

$46

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Knoxville — Austin is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 1 departures per week at the price of from $ 753 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 753.

Direct flights

There are 2 nonstop flights on the route. The fastest direct flight is G41410 by Allegiant Air takes 2h 20m and the cheapest is G41410 by Allegiant Air for $46.

G4 - Allegiant Air

from $46

Find

See more direct flights

Connecting Flights

There are 366 flights with layovers on the route. The fastest connecting flight is UA4913 by United Airlines takes 4h 11m and the cheapest is G41410 by Allegiant Air for $107.

AS - Alaska Airlines

from $753

Find
F9 - Frontier Airlines

from $107

Find
UA - United Airlines

from $136

Find
G4 - Allegiant Air

from $112

Find

See more connecting flights

Airports

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

Knoxville airports

Mc Ghee Tyson-TYS

from $46
Find

Austin airports

Austin-Bergstrom Intl-AUS

Find
Austin-ASQ

Find
Camp Maybry AHP-MMR

Find

Airplanes

There are flights to Austin from Knoxville by 4 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

Find
Knoxville — Las Vegas

from $74

Find
Knoxville — Chicago

from $76

Find
Knoxville — Denver

from $74

Find
Knoxville — Miami

from $66

Find
Knoxville — Boston

from $69

Find
Knoxville — Houston

from $54

Find
Knoxville — New Orleans

from $56

Find
Knoxville — Tampa

from $80

Find
Knoxville — Austin

from $54

Find

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

Find
Knoxville — Panama City

from $61

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.