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$56+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — TYS
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to Knoxville McGhee Tyson are usually found in August or January, booked 70 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap 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 September 19, 2025.

Round-trip from

$120
(Cheapflightsfares)

One-way from

$56
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$293

Good round-trip deal

$156 or less

Good one-way deal

$120 or less
From Austin Bergstrom to Knoxville McGhee Tyson
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One-way flight from Austin Bergstrom to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Austin Bergstrom to Knoxville McGhee Tyson.
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Price to beat on a one-way flight from Austin Bergstrom to Knoxville McGhee Tyson.
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Find 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 September 19, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:41 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Fri 10/1012:45 pmTYS - AUS
Nonstop2h 28mAllegiant Air
Deal found 9/17$120
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/33:03 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Fri 11/712:50 pmTYS - AUS
Nonstop2h 39mAllegiant Air
Deal found 9/16$133
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/33:03 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Mon 11/1012:50 pmTYS - AUS
Nonstop2h 39mAllegiant Air
Deal found 9/16$155
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/33:03 pmAUS - TYS
Nonstop2h 09mMultiple Airlines
Mon 11/106:11 pmTYS - AUS
1 stop30h 01mMultiple Airlines
Deal found 9/16$163
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/33:03 pmAUS - TYS
Nonstop2h 09mMultiple Airlines
Fri 11/79:09 pmTYS - AUS
1 stop27h 03mMultiple Airlines
Deal found 9/16$171
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:03 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Fri 10/2412:45 pmTYS - AUS
Nonstop2h 28mAllegiant Air
Deal found 9/18$176
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/33:03 pmAUS - TYS
Nonstop2h 09mMultiple Airlines
Wed 11/54:32 pmTYS - AUS
1 stop7h 40mMultiple Airlines
Deal found 9/16$179
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:19 pmAUS - TYS
Nonstop2h 04mAllegiant Air
Mon 11/1012:50 pmTYS - AUS
Nonstop2h 39mAllegiant Air
Deal found 9/17$182
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/196:41 pmAUS - TYS
Nonstop2h 09mMultiple Airlines
Wed 10/224:26 pmTYS - AUS
1 stop23h 58mMultiple Airlines
Deal found 9/18$183
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:32 pmAUS - TYS
Nonstop2h 08mAllegiant Air
Mon 11/2412:33 pmTYS - AUS
Nonstop2h 35mAllegiant Air
Deal found 9/16$187

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 September 19, 2025.
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

Fri 11/7

3:19 pm-6:23 pm

Nonstop2h 04m

Knoxville McGhee Tyson

Fri 11/7

9:20 pm-9:30 am

1 stop13h 10m

$217

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 10/17

3:03 pm-6:12 pm

Nonstop2h 09m

Knoxville McGhee Tyson

Fri 10/24

7:44 pm-12:49 pm

1 stop18h 05m

$236

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 11/4

6:27 pm-11:22 pm

1 stop3h 55m

Knoxville McGhee Tyson

Sat 11/8

7:45 am-2:50 pm

1 stop8h 05m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 10/14

2:15 pm-7:52 pm

1 stop4h 37m

Knoxville McGhee Tyson

Sat 10/18

7:15 am-11:04 am

1 stop4h 49m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 11/4

5:00 pm-11:22 pm

1 stop5h 22m

Knoxville McGhee Tyson

Tue 11/11

5:25 am-10:54 am

1 stop6h 29m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 11/11

5:40 am-10:45 am

1 stop4h 05m

Knoxville McGhee Tyson

Tue 11/11

2:50 pm-7:04 pm

1 stop5h 14m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 11/5

6:27 pm-11:22 pm

1 stop3h 55m

Knoxville McGhee Tyson

Tue 11/11

6:29 am-12:56 pm

1 stop7h 27m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 11/8

2:40 pm-9:13 pm

1 stop5h 33m

Knoxville McGhee Tyson

Tue 11/11

5:25 am-10:54 am

1 stop6h 29m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 11/8

5:40 am-10:28 am

1 stop3h 48m

Knoxville McGhee Tyson

Sat 11/8

2:41 pm-6:30 pm

1 stop4h 49m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 10/22

5:40 am-10:45 am

1 stop4h 05m

Knoxville McGhee Tyson

Wed 10/29

5:44 am-9:38 am

1 stop4h 54m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
1
2
3

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 September 12, 2025.

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, January is the cheapest month in which you can book a flight from Austin to Knoxville (average of $295). Flying from Austin to Knoxville in March is currently the most expensive (average of $376). 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 September 19, 2025.

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 morning.

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 September 19, 2025.
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
8.0
Very good
7,964 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
699 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    Delta can get you from Austin to Knoxville in just under 3h 55m. Your travel time can differ by up to . Austin and Knoxville are separated by a distance of 881 mi.

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

    Allegiant Air, at $85, was found to be the cheapest airline from Austin to Knoxville.Alternate airlines to your destination round-trip include United Airlines and Delta. You may be able to fly from Austin to Knoxville for 70% less than the average price by searching for these airlines.

  • What are the cheapest flights from Austin to Knoxville?

    Looking for the cheapest flight from Austin to Knoxville? While on average our users pay $193, our data indicates the cheapest price to be $52. The most popular route (Austin Bergstrom - Knoxville McGhee Tyson), is priced around $83.

  • 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, January is the cheapest month in which you can book a flight from Austin to Knoxville (average of $295). Flying from Austin to Knoxville in March is currently the most expensive (average of $376). 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
Morristown
Cherokee
Corbin
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 4 airlines flying from Austin to Knoxville

Discover the top 4 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 September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$85Average$178FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$174Average$367FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$352FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$230Average$347FlexibilityNo cancel feeOn-time71%

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