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Knoxville

$40+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — TYS
Jul 19 — Jul 261
Sun 7/19
Sun 7/26
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Austin Bergstrom to Knoxville McGhee Tyson are usually found in December or June, booked 85 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 June 19, 2026.

This CheapOair deal was found by Cheapflights users on 6/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:56 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Fri 8/218:30 am
TYS
-
AUS
Nonstop2h 20m
Allegiant Air
Deal found 6/18$73
This Kissandfly.com deal was found by Cheapflights users on 6/16. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:56 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Mon 8/106:30 am
TYS
-
AUS
Nonstop2h 36m
Allegiant Air
Deal found 6/16$83
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:42 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Mon 7/206:30 am
TYS
-
AUS
Nonstop2h 22m
Allegiant Air
Deal found 6/14$95
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:42 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Fri 7/176:30 am
TYS
-
AUS
Nonstop2h 22m
Allegiant Air
Deal found 6/16$99
This Mytrip deal was found by Cheapflights users on 6/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:42 am
AUS
-
TYS
Nonstop2h 21m
Allegiant Air
Fri 8/76:30 am
TYS
-
AUS
Nonstop2h 36m
Allegiant Air
Deal found 6/18$117

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 June 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$73
(CheapOair)

One-way from

$40
(Kiwi.com)

Popular in

April

Cheapest in

December

Average price

$233

Good round-trip deal

$151 or less

Good one-way deal

$83 or less
Provider with most accurate pricing for Austin Bergstrom-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Knoxville McGhee Tyson flights.
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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. 17% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Austin Bergstrom to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way 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 June 19, 2026.
Use the filters below to find and compare flights from Austin to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Mon 10/19

7:40 am-4:45 pm

1 stop8h 05m

Knoxville McGhee Tyson

Wed 10/21

7:00 am-12:25 pm

2 stops6h 25m

$303

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 8/4

9:50 am-6:55 pm

2 stops8h 05m

Knoxville McGhee Tyson

Thu 8/6

2:05 pm-9:50 pm

2 stops8h 45m

$330

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 8/7

8:40 am-6:35 pm

2 stops8h 55m

Knoxville McGhee Tyson

Mon 8/10

12:40 pm-7:15 pm

1 stop7h 35m

$342

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Mon 8/17

6:20 am-1:25 pm

2 stops6h 05m

Knoxville McGhee Tyson

Fri 8/21

7:10 am-1:55 pm

2 stops7h 45m

$347

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Sun 8/2

12:10 pm-9:20 pm

2 stops8h 10m

Knoxville McGhee Tyson

Tue 8/4

8:05 am-4:20 pm

2 stops9h 15m

$359

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 7/8

12:00 pm-9:20 pm

2 stops8h 20m

Knoxville McGhee Tyson

Thu 7/9

6:40 am-3:35 pm

2 stops9h 55m

$359

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Mon 7/13

11:30 am-9:15 pm

2 stops8h 45m

Knoxville McGhee Tyson

Wed 7/15

7:10 am-3:10 pm

2 stops9h 00m

$359

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 7/10

11:30 am-9:15 pm

2 stops8h 45m

Knoxville McGhee Tyson

Wed 7/15

7:10 am-1:40 pm

2 stops7h 30m

$369

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 10/30

5:55 am-3:20 pm

2 stops8h 25m

Knoxville McGhee Tyson

Sun 11/1

3:40 pm-11:25 pm

2 stops8h 45m

$369
Quickest round-trip

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 11/19

6:15 pm-11:46 pm

1 stop4h 31m

Knoxville McGhee Tyson

Sun 11/22

5:57 pm-10:19 pm

1 stop5h 22m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust 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?

The best time to book flights from Austin to Knoxville is 84 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, December is the cheapest month in which you can book a flight from Austin to Knoxville (average of $211). Flying from Austin to Knoxville in April is currently the most expensive (average of $392). 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 June 19, 2026.

It’s optimal to fly from Austin to Knoxville in the evening. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the afternoon.

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 June 19, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
7.9
Good
4,239 reviews
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Delta
7.8
Good
8,413 reviews
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
United Airlines
7.4
Good
9,861 reviews
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Allegiant Air
7.3
Good
693 reviews
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.1
Good
11,695 reviews
Southwest
7.9
Good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Overall

7.9

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

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 popular is this Austin to Knoxville flight route?

    Within the past month, 1 users have taken a look at flights from Austin Bergstrom to Knoxville McGhee Tyson.

  • How long is the flight from Austin to Knoxville?

    Southwest can get you from Austin to Knoxville in just under 8h 05m. 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?

    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 $137, our data indicates the cheapest price to be $58. The most popular route (Austin Bergstrom - Knoxville McGhee Tyson), is priced around $79.

  • 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, December is the cheapest month in which you can book a flight from Austin to Knoxville (average of $211). Flying from Austin to Knoxville in April is currently the most expensive (average of $392). 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
Morristown
Bryson City
Murphy
Alcoa
Oak Ridge

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Top 6 airlines flying from Austin to Knoxville

Discover the top 6 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 June 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$154FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$83Average$183FlexibilityNo cancel feeOn-time88%
DeltaCheapest$125Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$194Average$343FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$347FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$292Average$377FlexibilityNo cancel feeOn-time63%

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