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$48+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — TYS
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 October, booked 79 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 July 28, 2025.

Round-trip from

$100
(Cheapflightsfares)

One-way from

$48
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$293

Good round-trip deal

$104 or less

Good one-way deal

$82 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 ($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 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/89:05 amAUS - TYS
Nonstop2h 17mAllegiant Air
Mon 8/116:55 amTYS - AUS
Nonstop2h 20mAllegiant Air
Deal found 7/27$100
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:45 amAUS - TYS
1 stop8h 56mMultiple Airlines
Fri 9/1912:45 pmTYS - AUS
Nonstop2h 22mMultiple Airlines
Deal found 7/25$147
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:00 amAUS - TYS
1 stop4h 08mDelta
Sat 8/306:14 pmTYS - AUS
1 stop7h 04mDelta
Deal found 7/26$217
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:00 pmAUS - TYS
1 stop4h 54mAmerican Airlines
Sat 8/3012:20 pmTYS - AUS
1 stop4h 28mAmerican Airlines
Deal found 7/27$225
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amAUS - TYS
1 stop9h 14mFrontier
Sun 11/165:14 pmTYS - AUS
1 stop7h 20mFrontier
Deal found 7/26$238

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 28, 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 8/8

9:05 am-12:22 pm

Nonstop2h 17m

Knoxville McGhee Tyson

Mon 8/11

6:55 am-8:15 am

Nonstop2h 20m

$100

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 9/17

5:45 am-3:41 pm

1 stop8h 56m

Knoxville McGhee Tyson

Fri 9/19

12:45 pm-2:07 pm

Nonstop2h 22m

$147

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 8/30

8:00 am-1:08 pm

1 stop4h 08m

Knoxville McGhee Tyson

Sat 8/30

6:14 pm-12:18 am

1 stop7h 04m

$217

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 8/26

1:00 pm-6:54 pm

1 stop4h 54m

Knoxville McGhee Tyson

Sat 8/30

12:20 pm-3:48 pm

1 stop4h 28m

$225

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 9/4

6:30 am-7:50 pm

1 stop12h 20m

Knoxville McGhee Tyson

Sun 9/7

5:08 pm-11:32 pm

1 stop7h 24m

$238

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Mon 8/25

10:22 am-1:39 pm

Nonstop2h 17m

$48

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 8/23

7:15 am-3:51 pm

1 stop7h 36m

$105

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 8/21

6:00 am-7:41 pm

1 stop12h 41m

$114

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sat 8/23

5:30 am-5:00 pm

2 stops10h 30m

$131

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 8/29

3:36 pm-11:50 pm

1 stop7h 14m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 12 results
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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 25, 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 $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 July 28, 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.

How much does it cost to fly round-trip from Austin to Knoxville?

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 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,971 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,886 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Allegiant Air
7.2
Good
702 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 $100, was found to be the cheapest airline from Austin to Knoxville.Alternate airlines to your destination round-trip include Delta and American Airlines. You may be able to fly from Austin to Knoxville for 65% less than the average price by searching for these airlines.

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

    $48 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 Frontier and United Airlines, with prices starting from $114 and $131, 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 $132, our data indicates the cheapest price to be $51. The most popular route (Austin Bergstrom - Knoxville McGhee Tyson), is priced around $76.

  • 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
Corbin
Cherokee
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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$86Average$185FlexibilityNo cancel feeOn-time88%
DeltaCheapest$219Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$230Average$342FlexibilityNo cancel feeOn-time71%

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