US$79 Cheap Flights from Austin to Knoxville
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Flights from Austin to Knoxville
Find cheap one-way flights from Austin to Knoxville starting at US$79.
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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AUS 16:595h 52m1 stopsTYS 23:51Austin - Knoxville | Tue, May 20 | Delta Air Lines
TYS 18:105h 51m1 stopsAUS 23:01Knoxville - Austin | Tue, May 27 | Delta Air LinesUS$202 US$28128% OFF28% OFFUS$281 US$202 -
AUS 08:254h 23m1 stopsTYS 13:48Austin - Knoxville | Wed, Apr 16 | Delta Air Lines
TYS 08:595h 26m1 stopsAUS 13:25Knoxville - Austin | Sat, Apr 19 | Delta Air LinesUS$204 US$28127% OFF27% OFFUS$281 US$204
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AUS 08:254h 23m1 stopsTYS 13:48Austin - Knoxville | Tue, Apr 15 | Delta Air Lines
TYS 17:146h 38m1 stopsAUS 22:52Knoxville - Austin | Tue, Apr 22 | Delta Air LinesUS$205 US$28127% OFF27% OFFUS$281 US$205
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AUS 05:304h 42m1 stopsTYS 11:12Austin - Knoxville | Wed, Apr 9 | Delta Air Lines
TYS 17:005h 1m1 stopsAUS 21:01Knoxville - Austin | Wed, Apr 9 | Delta Air LinesUS$20527% OFFUS$281 US$205
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AUS 05:304h 44m1 stopsTYS 11:14Austin - Knoxville | Wed, Apr 2 | Delta Air Lines
TYS 05:454h 55m1 stopsAUS 09:40Knoxville - Austin | Wed, Apr 9 | Delta Air LinesUS$20527% OFFUS$281 US$205
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AUS 05:304h 42m1 stopsTYS 11:12Austin - Knoxville | Tue, Apr 8 | Delta Air Lines
TYS 05:454h 55m1 stopsAUS 09:40Knoxville - Austin | Wed, Apr 9 | Delta Air LinesUS$20527% OFFUS$281 US$205
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AUS 05:304h 39m1 stopsTYS 11:09Austin - Knoxville | Wed, Apr 30 | Delta Air Lines
TYS 11:358h 5m1 stopsAUS 18:40Knoxville - Austin | Wed, May 7 | Delta Air LinesUS$20926% OFFUS$281 US$209
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AUS 05:305h 38m1 stopsTYS 12:08Austin - Knoxville | Tue, Apr 1 | Delta Air Lines
TYS 19:236h 15m1 stopsAUS 00:38Knoxville - Austin | Tue, Apr 1 | Delta Air LinesUS$21224% OFFUS$281 US$212
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AUS 18:204h 22m1 stopsTYS 23:42Austin - Knoxville | Thu, Apr 10 | Delta Air Lines
TYS 05:305h 10m1 stopsAUS 09:40Knoxville - Austin | Tue, Apr 15 | Delta Air LinesUS$22620% OFFUS$281 US$226
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AUS 18:204h 22m1 stopsTYS 23:42Austin - Knoxville | Sat, Apr 5 | Delta Air Lines
TYS 19:246h 2m1 stopsAUS 00:26Knoxville - Austin | Mon, Apr 7 | Delta Air LinesUS$22819% OFFUS$281 US$228
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AUS 13:0017h 25m1 stopsTYS Invalid DateAustin - Knoxville | Tue, Mar 25 | Normal Airline
TYS 15:006hNonstopAUS 16:00Knoxville - Austin | Thu, Mar 27 | Normal AirlineFind More FlightsFind More Flights
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AUS 06:108h 31m1 stopsTYS 15:41Austin - Knoxville | Thu, Apr 10 | Frontier AirlinesUS$79 US$15448% OFF48% OFFUS$154 US$79 -
AUS 06:108h 36m1 stopsTYS 15:46Austin - Knoxville | Sun, Apr 13 | Frontier AirlinesUS$95 US$15438% OFF38% OFFUS$154 US$95
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AUS 08:308h 6m1 stopsTYS 17:36Austin - Knoxville | Tue, May 20 | Delta Air LinesUS$102 US$15434% OFF34% OFFUS$154 US$102
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AUS 08:254h 15m1 stopsTYS 13:40Austin - Knoxville | Wed, Apr 2 | Delta Air LinesUS$10333% OFFUS$154 US$103
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AUS 06:455h 29m1 stopsTYS 13:14Austin - Knoxville | Wed, May 7 | Delta Air LinesUS$10531% OFFUS$154 US$105
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AUS 05:304h 39m1 stopsTYS 11:09Austin - Knoxville | Wed, Apr 30 | Delta Air LinesUS$10631% OFFUS$154 US$106
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AUS 05:305h 33m1 stopsTYS 12:03Austin - Knoxville | Tue, Apr 8 | Delta Air LinesUS$10631% OFFUS$154 US$106
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AUS 06:1028h 36m1 stopsTYS 11:46Austin - Knoxville | Thu, Apr 17 | Frontier AirlinesUS$11128% OFFUS$154 US$111
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AUS 05:304h 39m1 stopsTYS 11:09Austin - Knoxville | Sun, Apr 20 | Delta Air LinesUS$11823% OFFUS$154 US$118
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AUS 06:108h 36m1 stopsTYS 15:46Austin - Knoxville | Sun, Apr 20 | Frontier AirlinesUS$12519% OFFUS$154 US$125
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AUS 13:0017h 25m1 stopsTYS Invalid DateAustin - Knoxville | Tue, Mar 25 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Austin (AUS) to Knoxville (TYS) the cheapest?
Airlines adjust prices for flights from Austin to Knoxville based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Austin (AUS) to Knoxville (TYS) cost?
According to Trip.com's data, the lowest price is around $448. -
How long does it take to fly from Austin (AUS) to Knoxville (TYS) and what is the distance?
It takes around 2 hours 4 minutes to fly from Austin (AUS) to Knoxville (TYS). -
What are the most popular airlines that fly from Austin (AUS) to Knoxville (TYS)?
Airlines with flights from Austin (AUS) to Knoxville (TYS): Allegiant Air.
How to find a cheap flight from Austin to Knoxville
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Austin to Knoxville. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Austin to Knoxville ticket.
Tap "Date" on flight search bar to scan through the calender for Austin to Knoxville airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Thu, Apr 10 at US$79 for one-way flights.
Compare cheap Austin to Knoxville flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Austin to Knoxville. The cheapest airline operating is Frontier Airlines.
Set up a Price Alert
By setting up a Price Alert for your Austin to Knoxville route, you can easily track the price of your airline tickets from Austin to Knoxville without manually checking every day.
Don't miss cheap Austin to Knoxville flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Austin to Knoxville to get exclusive deals for you.
Austin to Knoxville Flight Information
| Cheapest one-way flight price | $79 |
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| Off-season for travel | March |
| Peak season for travel | June |
| Flight distance | 1,421.89 km |
| Average flight time | 2 hours 4 minutes |
| Popular airline | United Airlines |
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