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$74+ Cheap flights from Austin to Knoxville (AUS - TYS)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — TYS
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Find cheap flights from Austin to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Austin Bergstrom to Knoxville McGhee Tyson are usually found in December or October, booked 70 days in advance, depart on a Saturday or Monday and return on a Tuesday

Cheap flight deals from Austin to Knoxville

Cheapest flights from Austin to Knoxville
Explore the most affordable flight options available from Austin to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/3. 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 5/298:26 am
AUS
-
TYS
Nonstop2h 11m
Allegiant Air
Mon 6/16:00 am
TYS
-
AUS
Nonstop2h 36m
Allegiant Air
Deal found 2/3$150
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 6/128:38 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Mon 6/156:30 am
TYS
-
AUS
Nonstop2h 18m
Allegiant Air
Deal found 2/2$151
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/254:59 pm
AUS
-
TYS
1 stop28h 27m
Multiple Airlines
Mon 3/307:40 am
TYS
-
AUS
1 stop9h 24m
Multiple Airlines
Deal found 2/3$194
This Frontier deal was found by Cheapflights users on 2/3. 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.
Fri 2/2010:16 am
AUS
-
TYS
1 stop8h 11m
Frontier
Mon 2/238:13 pm
TYS
-
AUS
1 stop28h 00m
Frontier
Deal found 2/3$195
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 5/258:26 am
AUS
-
TYS
Nonstop2h 11m
Allegiant Air
Fri 5/296:00 am
TYS
-
AUS
Nonstop2h 36m
Allegiant Air
Deal found 2/2$207
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/511:34 am
AUS
-
TYS
1 stop10h 53m
Multiple Airlines
Mon 3/99:36 pm
TYS
-
AUS
1 stop24h 17m
Multiple Airlines
Deal found 2/2$210
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/207:15 am
AUS
-
TYS
1 stop28h 49m
Multiple Airlines
Mon 2/237:22 pm
TYS
-
AUS
2 stops26h 31m
Multiple Airlines
Deal found 2/3$212
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/47:15 am
AUS
-
TYS
2 stops10h 11m
Multiple Airlines
Wed 3/114:25 pm
TYS
-
AUS
1 stop24h 39m
Multiple Airlines
Deal found 2/2$214
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/27:15 am
AUS
-
TYS
2 stops10h 16m
Multiple Airlines
Mon 3/99:36 pm
TYS
-
AUS
1 stop24h 17m
Multiple Airlines
Deal found 2/2$233
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/177:15 am
AUS
-
TYS
1 stop25h 53m
Multiple Airlines
Fri 2/202:06 pm
TYS
-
AUS
1 stop7h 38m
Multiple Airlines
Deal found 2/3$235
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 2/2210:46 am
AUS
-
TYS
1 stop22h 48m
Multiple Airlines
Wed 3/258:30 am
TYS
-
AUS
1 stop9h 49m
Multiple Airlines
Deal found 2/1$236

Find flight deals from Austin to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Knoxville (TYS). 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(Kiwi.com)

One-way from

$74
(Priceline)

Popular in

March

Cheapest in

December

Average price

$306

Good round-trip deal

$140 or less
Provider with most accurate pricing for Austin Bergstrom-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Knoxville McGhee Tyson flights.
Search Deals
From Austin Bergstrom to Knoxville McGhee Tyson
Search Deals
One-way flight from Austin Bergstrom to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Austin Bergstrom to Knoxville McGhee Tyson.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Knoxville 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 February 3, 2026.
Use the filters below to find and compare flights from Austin to Knoxville that are best for you.

Fly from

Austin

Fly to

Knoxville

Route

Depart

Return

Price

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 4/28

1:50 pm-10:29 pm

1 stop7h 39m

Knoxville McGhee Tyson

Tue 5/5

9:00 am-1:09 pm

1 stop5h 09m

$265

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 2/27

10:06 am-6:06 pm

1 stop7h 00m

Knoxville McGhee Tyson

Sun 3/1

5:53 pm-7:02 pm

2 stops26h 09m

$302

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 3/11

8:00 am-4:43 pm

1 stop7h 43m

Knoxville McGhee Tyson

Sat 3/14

10:04 am-3:45 pm

1 stop6h 41m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 3/25

8:55 am-5:40 pm

1 stop7h 45m

Knoxville McGhee Tyson

Mon 3/30

7:25 pm-1:00 am

1 stop6h 35m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sun 3/8

6:13 am-2:24 pm

1 stop7h 11m

Knoxville McGhee Tyson

Wed 3/11

6:21 pm-11:06 pm

1 stop5h 45m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 3/25

5:22 am-11:17 am

1 stop4h 55m

Knoxville McGhee Tyson

Mon 3/30

6:38 pm-12:20 am

1 stop6h 42m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 3/31

9:50 am-4:52 pm

1 stop6h 02m

Knoxville McGhee Tyson

Sun 4/5

7:05 am-11:19 am

1 stop5h 14m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 4/3

6:39 pm-11:57 pm

1 stop4h 18m

Knoxville McGhee Tyson

Sun 4/5

5:40 am-10:55 am

1 stop6h 15m

$319

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 3/5

2:35 pm-9:15 pm

2 stops5h 40m

Knoxville McGhee Tyson

Mon 3/9

3:45 pm-11:35 pm

2 stops8h 50m

$329

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 3/12

2:40 pm-9:15 pm

1 stop5h 35m

Knoxville McGhee Tyson

Mon 3/16

7:25 pm-1:00 am

1 stop6h 35m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 19 results
1
2

Compare providers for flights from Austin to Knoxville

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 Austin to Knoxville in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Austin-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Knoxville 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 Austin-Knoxville 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 Austin to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Austin 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 Austin to Knoxville

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

Use this chart to determine the optimal time to book a round-trip flight from Austin to Knoxville. Price data was last updated on January 30, 2026.

The best time to book flights from Austin to Knoxville is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Austin to Knoxville (average of $80). Flying from Austin to Knoxville in January is currently the most expensive (average of $193). 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 AUS to TYS?

Find hourly flight availability from Austin to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.

It’s optimal to fly from Austin to Knoxville in the evening. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated February 3, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Austin to Knoxville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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
8,138 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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
9,236 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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
11,216 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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
709 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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.
Frontier
5.7
Fair
3,051 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

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 Austin to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Knoxville?

    United Airlines, Delta, and Southwest can get you from Austin to Knoxville in just under 7h 39m. Your travel time can differ by up to 06m. Austin and Knoxville 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 Austin to Knoxville round-trip?

    Frontier, at $53, was found to be the cheapest airline from Austin to Knoxville.Alternate airlines to your destination round-trip include Allegiant Air and Delta. You may be able to fly from Austin to Knoxville for 81% less than the average price by searching for these airlines.

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

    $45 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $99 and $99, respectively.

  • What are the cheapest flights from Austin to Knoxville?

    Looking for the cheapest flight from Austin to Knoxville? While on average our users pay $162, our data indicates the cheapest price to be $140. The most popular route (Austin Bergstrom - Knoxville McGhee Tyson), is priced around $151.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Austin to Knoxville 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 Austin to Knoxville?

    Currently, September is the cheapest month in which you can book a flight from Austin to Knoxville (average of $80). Flying from Austin to Knoxville in January is currently the most expensive (average of $193). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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Alternative routes for Austin to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Austin to Knoxville

Discover the top 5 airlines that operate flights from Austin to Knoxville. 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$119FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$81Average$168FlexibilityNo cancel feeOn-time88%
DeltaCheapest$125Average$340FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$194Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$223Average$340FlexibilityNo cancel feeOn-time71%

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