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$101+ Cheap flights from Knoxville to Austin (TYS - AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — AUS
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Austin Bergstrom are usually found in October or December, booked 58 days in advance, depart on a Tuesday or Friday and return on a Saturday

Cheap flight deals from Knoxville to Austin

Cheapest flights from Knoxville to Austin
Explore the most affordable flight options available from Knoxville to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:14 pm
TYS
-
AUS
1 stop23h 50m
Multiple Airlines
Tue 3/34:59 pm
AUS
-
TYS
1 stop21h 05m
Multiple Airlines
Deal found 1/27$193
This Priceline deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:28 pm
TYS
-
AUS
1 stop8h 53m
Frontier
Sun 4/196:45 am
AUS
-
TYS
1 stop7h 48m
Frontier
Deal found 1/27$195
This Priceline deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:28 pm
TYS
-
AUS
1 stop8h 53m
Frontier
Sun 4/266:45 am
AUS
-
TYS
1 stop7h 48m
Frontier
Deal found 1/26$215
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:06 pm
TYS
-
AUS
1 stop26h 58m
Multiple Airlines
Mon 3/27:15 am
AUS
-
TYS
2 stops10h 16m
Multiple Airlines
Deal found 1/26$224
This Frontier deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/24:30 pm
TYS
-
AUS
1 stop8h 46m
Frontier
Fri 2/66:55 am
AUS
-
TYS
1 stop7h 35m
Frontier
Deal found 1/25$236
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/612:55 pm
TYS
-
AUS
1 stop22h 26m
Multiple Airlines
Tue 2/107:25 am
AUS
-
TYS
1 stop25h 43m
Multiple Airlines
Deal found 1/27$243
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/243:00 pm
TYS
-
AUS
1 stop8h 08m
Multiple Airlines
Tue 3/3112:08 pm
AUS
-
TYS
1 stop21h 28m
Multiple Airlines
Deal found 1/26$246
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:54 pm
TYS
-
AUS
1 stop19h 35m
Multiple Airlines
Sun 3/811:34 am
AUS
-
TYS
1 stop10h 52m
Multiple Airlines
Deal found 1/26$260
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:00 am
TYS
-
AUS
1 stop14h 53m
Multiple Airlines
Mon 2/167:15 am
AUS
-
TYS
2 stops30h 59m
Multiple Airlines
Deal found 1/27$267

Find flight deals from Knoxville to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(Kiwi.com)

One-way from

$101
(Priceline)

Popular in

November

Cheapest in

October

Average price

$308
Provider with most accurate pricing for Knoxville McGhee Tyson-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Austin Bergstrom flights.
Search Deals
From Knoxville McGhee Tyson to Austin Bergstrom
Search Deals
One-way flight from Knoxville McGhee Tyson to Austin Bergstrom
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
Use the filters below to find and compare flights from Knoxville to Austin that are best for you.

Fly from

Knoxville

Fly to

Austin

Route

Depart

Return

Price

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Tue 2/17

6:45 am-2:01 pm

1 stop8h 16m

Austin Bergstrom

Thu 2/19

1:10 pm-8:37 pm

1 stop6h 27m

$274

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 4/15

12:50 pm-6:20 pm

1 stop6h 30m

Austin Bergstrom

Sat 4/18

9:05 am-3:20 pm

1 stop5h 15m

$274

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 2/21

9:10 am-1:08 pm

1 stop4h 58m

Austin Bergstrom

Tue 2/24

2:15 pm-7:55 pm

1 stop4h 40m

$279

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 2/19

1:00 pm-6:50 pm

1 stop6h 50m

Austin Bergstrom

Sat 2/21

5:20 am-12:08 pm

1 stop5h 48m

$281

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 2/21

5:35 am-11:23 am

1 stop6h 48m

Austin Bergstrom

Mon 2/23

5:20 am-12:11 pm

1 stop5h 51m

$281

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 2/21

11:41 am-5:23 pm

1 stop6h 42m

Austin Bergstrom

Mon 2/23

2:15 pm-7:55 pm

1 stop4h 40m

$281

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 2/19

2:38 pm-7:46 pm

1 stop6h 08m

Austin Bergstrom

Mon 2/23

6:32 pm-11:52 pm

1 stop4h 20m

$283

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 4/16

9:00 am-1:04 pm

1 stop5h 04m

Austin Bergstrom

Mon 4/20

3:33 pm-10:29 pm

1 stop5h 56m

$283

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 2/19

6:45 am-12:06 pm

1 stop6h 21m

Austin Bergstrom

Mon 2/23

5:59 pm-11:44 pm

1 stop4h 45m

$283

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 2/23

2:06 pm-4:04 pm

1 stop26h 58m

$103

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 17 results
1
2

Compare providers for flights from Knoxville to Austin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Austin in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Austin

How far ahead should I book a flight from Knoxville to Austin?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Austin. Price data was last updated on January 23, 2026.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Knoxville to Austin?

Currently, May is the cheapest month in which you can book a flight from Knoxville to Austin (average of $86). Flying from Knoxville to Austin in March is currently the most expensive (average of $133). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to AUS?

Find hourly flight availability from Knoxville to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 28, 2026.

One of the essential ways to save on airfare from Knoxville to Austin is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 58% on airfare.

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated January 28, 2026.
Read through reviews of airlines operating flights from Knoxville to Austin, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,122 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,122 reviews
Delta
7.9
Good
8,122 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,206 reviews
Delta
7.9
Good
8,122 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,200 reviews
Delta
7.9
Good
8,122 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
706 reviews
Delta
7.9
Good
8,122 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Knoxville to Austin flight route?

    This flight path from Knoxville McGhee Tyson to Austin Bergstrom was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Knoxville to Austin?

    Departing from Knoxville to Austin will take you 6h 30m. Knoxville and Austin are separated by a distance of 881 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Knoxville to Austin round-trip?

    Flying on Allegiant Air is currently your cheapest option to Austin, with prices starting at $86. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $118 and $233, respectively. Allegiant Air is 70% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Knoxville to Austin one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $46. Users have also found prices from $74 and $118 on Frontier and Delta, respectively.

  • Can I find deals for flights from Knoxville to Austin that include hotel bookings?

    Yes. In addition to deals on Knoxville to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Austin.

  • Can I find deals for business class flights from Knoxville to Austin?

    Yes. Cheapflights offers flight deals from Knoxville to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Austin?

    Currently, May is the cheapest month in which you can book a flight from Knoxville to Austin (average of $86). Flying from Knoxville to Austin in March is currently the most expensive (average of $133). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Austin?

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

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Top 4 airlines flying from Knoxville to Austin

Discover the top 4 airlines that operate flights from Knoxville to Austin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$86Average$139FlexibilityNo cancel feeOn-time88%
DeltaCheapest$118Average$327FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$233Average$323FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$358FlexibilityNo cancel feeOn-time71%

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