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Cheap flights from Knoxville to Austin from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Austin departing on 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Knoxville to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:51 pm - 12:16 am
TYS
-
AUS
6h 25m
1 stop
Frontier Logo
6:45 am - 7:18 pm
AUS
-
TYS
11h 33m
1 stop
$189Frontier
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
9:00 am - 7:02 pm
TYS
-
AUS
11h 02m
1 stop
Multiple Airlines Logo
7:15 am - 11:34 am
AUS
-
TYS
27h 19m
2 stops
$199Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Multiple Airlines Logo
9:00 am - 7:02 pm
TYS
-
AUS
11h 02m
1 stop
Multiple Airlines Logo
4:59 pm - 11:04 am
AUS
-
TYS
17h 05m
1 stop
$221Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Multiple Airlines Logo
8:00 am - 8:53 pm
TYS
-
AUS
13h 53m
1 stop
Multiple Airlines Logo
7:15 am - 6:31 pm
AUS
-
TYS
10h 16m
2 stops
$237Multiple Airlines
Sat, Feb 28 - Mon, Mar 2
Multiple Airlines Logo
8:30 am - 5:19 pm
TYS
-
AUS
9h 49m
1 stop
Multiple Airlines Logo
4:59 pm - 8:08 am
AUS
-
TYS
14h 09m
1 stop
$249Multiple Airlines
Wed, Mar 25 - Sun, Mar 29
Multiple Airlines Logo
2:06 pm - 8:44 pm
TYS
-
AUS
7h 38m
1 stop
Multiple Airlines Logo
7:15 am - 10:08 am
AUS
-
TYS
25h 53m
1 stop
$262Multiple Airlines
Fri, Feb 13 - Tue, Feb 17
Frontier Logo
4:28 pm - 12:21 am
TYS
-
AUS
8h 53m
1 stop
Frontier Logo
6:45 am - 3:33 pm
AUS
-
TYS
7h 48m
1 stop
$270Frontier
Thu, May 7 - Sun, May 10
Multiple Airlines Logo
8:00 am - 8:53 pm
TYS
-
AUS
13h 53m
1 stop
Multiple Airlines Logo
11:34 am - 8:46 pm
AUS
-
TYS
8h 12m
1 stop
$271Multiple Airlines
Sat, Feb 28 - Mon, Mar 2
Multiple Airlines Logo
3:54 pm - 10:29 am
TYS
-
AUS
19h 35m
1 stop
Multiple Airlines Logo
4:14 pm - 9:27 pm
AUS
-
TYS
28h 13m
2 stops
$273Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
3:52 pm - 8:53 pm
TYS
-
AUS
30h 01m
1 stop
Multiple Airlines Logo
7:15 am - 6:32 pm
AUS
-
TYS
10h 17m
2 stops
$282Multiple Airlines
Wed, Feb 18 - Mon, Feb 23

Delta flights from Knoxville to Austin

Our best Delta deals on Knoxville to Austin flight tickets
Delta
May 1
TYS5:24 pmKnoxville McGhee Tyson
5h 32m
1 stop
AUS9:56 pmAustin Bergstrom
May 5
AUS10:55 amAustin Bergstrom
5h 13m
1 stop
TYS5:08 pmKnoxville McGhee Tyson
$301
Delta
Feb 21
TYS5:35 amKnoxville McGhee Tyson
5h 13m
1 stop
AUS9:48 amAustin Bergstrom
Feb 23
AUS6:32 pmAustin Bergstrom
4h 20m
1 stop
TYS11:52 pmKnoxville McGhee Tyson
$338
Delta
Mar 11
TYS11:18 amKnoxville McGhee Tyson
8h 39m
1 stop
AUS6:57 pmAustin Bergstrom
Mar 16
AUS3:41 pmAustin Bergstrom
6h 22m
1 stop
TYS11:03 pmKnoxville McGhee Tyson
$339

Southwest flights from Knoxville to Austin

Our best Southwest deals on Knoxville to Austin flight tickets
Southwest
May 7
TYS8:05 amKnoxville McGhee Tyson
10h 40m
1 stop
AUS5:45 pmAustin Bergstrom
May 10
AUS10:20 amAustin Bergstrom
9h 45m
2 stops
TYS9:05 pmKnoxville McGhee Tyson
$317
Southwest
Mar 19
TYS7:25 pmKnoxville McGhee Tyson
6h 35m
1 stop
AUS1:00 amAustin Bergstrom
Mar 21
AUS6:10 amAustin Bergstrom
9h 00m
2 stops
TYS4:10 pmKnoxville McGhee Tyson
$334
Southwest
May 1
TYS6:35 amKnoxville McGhee Tyson
7h 15m
2 stops
AUS12:50 pmAustin Bergstrom
May 4
AUS6:45 amAustin Bergstrom
3h 55m
1 stop
TYS11:40 amKnoxville McGhee Tyson
$335

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Knoxville to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 2/27

6:51 pm-12:16 am

1 stop6h 25m

Austin Bergstrom

Mon 3/2

6:45 am-7:18 pm

1 stop11h 33m

$189

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 3/2

9:00 am-7:02 pm

1 stop11h 02m

Austin Bergstrom

Wed 3/4

7:15 am-11:34 am

2 stops27h 19m

$199

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 3/2

9:00 am-7:02 pm

1 stop11h 02m

Austin Bergstrom

Wed 3/4

4:59 pm-11:04 am

1 stop17h 05m

$221

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 2/28

8:00 am-8:53 pm

1 stop13h 53m

Austin Bergstrom

Mon 3/2

7:15 am-6:31 pm

2 stops10h 16m

$237

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 3/25

8:30 am-5:19 pm

1 stop9h 49m

Austin Bergstrom

Sun 3/29

4:59 pm-8:08 am

1 stop14h 09m

$249

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 2/13

2:06 pm-8:44 pm

1 stop7h 38m

Austin Bergstrom

Tue 2/17

7:15 am-10:08 am

1 stop25h 53m

$262

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 5/7

4:28 pm-12:21 am

1 stop8h 53m

Austin Bergstrom

Sun 5/10

6:45 am-3:33 pm

1 stop7h 48m

$270

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 2/28

8:00 am-8:53 pm

1 stop13h 53m

Austin Bergstrom

Mon 3/2

11:34 am-8:46 pm

1 stop8h 12m

$271

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 3/4

3:54 pm-10:29 am

1 stop19h 35m

Austin Bergstrom

Wed 3/11

4:14 pm-9:27 pm

2 stops28h 13m

$273

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 2/18

3:52 pm-8:53 pm

1 stop30h 01m

Austin Bergstrom

Mon 2/23

7:15 am-6:32 pm

2 stops10h 17m

$282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Austin from

How to get the cheapest flight ticket from Knoxville to Austin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Knoxville is in October. Flight prices, which tend to average around $209, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in October, then December is your next best option. Flight prices from Knoxville to Austin during December average around $212.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Tuesday when prices can be found for as low as $124. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Knoxville to Austin for around $155.

What is the cheapest time of day to depart on your flight to Austin?

At noon is the cheapest time of day to fly from Knoxville to Austin when you can find flight prices for as low as $99. Flying to Austin at noon is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the afternoon, with an average ticket price of $155. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Knoxville McGhee Tyson to Austin Bergstrom flight route?

Fly from Knoxville McGhee Tyson to Austin Bergstrom for the best Knoxville McGhee Tyson - Austin Bergstrom flight prices

How far in advance should I book a flight to Austin?

You are more likely to see cheaper flights to Austin from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $297 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Knoxville for as low as $69 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Austin Bergstrom flights?

There is only 1 cabin class available to choose from on Knoxville McGhee Tyson to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Knoxville to Austin flights?

You could potentially save up to 1% on your flight if you consider stops on a Knoxville to Austin flight.

How have Knoxville to Austin flight prices changed over time?

As of February 2026, prices for Knoxville to Austin flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Knoxville to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Austin (TYS to AUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Austin

Fastest flight time

5h 05m

Direct flights

Tue

Airports in Austin

1 airport
The fastest flight from Knoxville to Austin takes 5h 05m
Direct flights go from Knoxville to Austin on Tuesday. There are no airlines offering direct flights.
There is 1 airport in Austin. From Knoxville there are direct flights to Austin Bergstrom (AUS).
Search flight deals

  • How far is Knoxville McGhee Tyson to Austin Bergstrom by plane?

    A flight from Knoxville McGhee Tyson to Austin Bergstrom will travel around 889.3 mi. A reasonable flight in good conditions will take 5h 05m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Austin Bergstrom Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Austin Bergstrom Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Austin Bergstrom Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Austin Bergstrom Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Austin Bergstrom Airport.

  • What documentation or ID do you need to fly to Austin Bergstrom Airport?

    The necessary travel and health documents for your Austin Bergstrom Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Austin?

  • What is the most popular airline from Knoxville to Austin?

Best airlines flying from Knoxville to Austin

Compare and see reviews for airlines that fly from Knoxville to Austin with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $86Free CancellationRating
7.2
709 reviews
Search Allegiant Air flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $233Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,216 reviews
Search American Airlines flights
SouthwestPriceFrom $279Free CancellationRating
8.0
4,272 reviews
Search Southwest flights

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Wimberley
San Marcos
Round Rock
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
Pflugerville
Kyle
Seguin
Bastrop
Buda
Flatonia

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Austin?

Finding the right flight to Austin from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Austin quick and easy, saving you time and money.

Can I find flights from Knoxville to Austin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Austin from Knoxville with this policy.

How can momondo help me find flights from Knoxville to Austin?

Once all potential Knoxville to Austin flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Knoxville to Austin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Austin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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