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$107+ Cheap flights from Austin to Knoxville (AUS - TYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — TYS
Jul 19 — Jul 261
Sat 7/19
Sat 7/26
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 79 days in advance, depart on a Monday or Saturday 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 July 14, 2025.

Round-trip from

$107
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$293

Good round-trip deal

$110 or less

Good one-way deal

$56 or less
From Austin Bergstrom to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/13. 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 10/126:41 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Thu 10/164:23 pmTYS - AUS
Nonstop2h 28mAllegiant Air
Deal found 7/13$107
This Mytrip deal was found by Cheapflights users on 7/13. 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.
Sat 8/307:15 amAUS - TYS
1 stop7h 36mMultiple Airlines
Mon 9/18:00 amTYS - AUS
Nonstop2h 32mMultiple Airlines
Deal found 7/13$149
This Priceline deal was found by Cheapflights users on 7/13. 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.
Sun 8/106:00 amAUS - TYS
1 stop9h 29mFrontier
Sun 8/175:25 pmTYS - AUS
1 stop7h 19mFrontier
Deal found 7/13$204
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:40 pmAUS - TYS
1 stop6h 39mAmerican Airlines
Mon 9/15:30 amTYS - AUS
1 stop4h 59mAmerican Airlines
Deal found 7/13$224
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:25 amAUS - TYS
1 stop5h 16mDelta
Tue 9/167:05 amTYS - AUS
1 stop4h 49mDelta
Deal found 7/13$249

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 July 14, 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

Sun 10/12

6:41 pm-9:50 pm

Nonstop2h 09m

Knoxville McGhee Tyson

Thu 10/16

4:23 pm-5:51 pm

Nonstop2h 28m

$107

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 8/30

7:15 am-3:51 pm

1 stop7h 36m

Knoxville McGhee Tyson

Mon 9/1

8:00 am-9:32 am

Nonstop2h 32m

$149

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sun 8/10

6:00 am-4:29 pm

1 stop9h 29m

Knoxville McGhee Tyson

Sun 8/17

5:25 pm-11:44 pm

1 stop7h 19m

$204

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 8/30

4:40 pm-12:19 am

1 stop6h 39m

Knoxville McGhee Tyson

Mon 9/1

5:30 am-9:29 am

1 stop4h 59m

$224

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 9/11

5:25 am-11:41 am

1 stop5h 16m

Knoxville McGhee Tyson

Tue 9/16

7:05 am-10:54 am

1 stop4h 49m

$249

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 7/18

9:05 am-12:22 pm

Nonstop2h 17m

$166

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 7/22

6:32 pm-11:50 am

1 stop16h 18m

$214

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 7/17

6:00 am-4:29 pm

1 stop9h 29m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

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 July 11, 2025.

The best time to book flights from Austin to Knoxville is 79 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 $294). 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 July 14, 2025.

It’s optimal to fly from Austin to Knoxville in the evening. By choosing this option you can save up to 52% 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 July 14, 2025.
Get a feel of what it's like to fly with Delta, American Airlines, and Allegiant Air 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
7,956 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
7,956 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

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
705 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

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!
Frontier
5.9
Fair
3,261 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

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.

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

    Allegiant Air, at $107, was found to be the cheapest airline from Austin to Knoxville.Alternate airlines to your destination round-trip include Frontier and American Airlines. You may be able to fly from Austin to Knoxville for 62% 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 $113, our data indicates the cheapest price to be $52. The most popular route (Austin Bergstrom - Knoxville McGhee Tyson), is priced around $90.

  • 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 $294). 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
Corbin
Cherokee
Alcoa
Oak Ridge
Murphy

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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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$86Average$185FlexibilityNo cancel feeOn-time88%
DeltaCheapest$219Average$349FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$341FlexibilityNo cancel feeOn-time71%

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