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$52+ Cheap flights from Knoxville to Austin (TYS - AUS)

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.
TYS — AUS
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Austin Bergstrom are usually found in October or December, booked 58 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Knoxville to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Austin (AUS). 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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$92
(Cheapflightsfares)

One-way from

$52
(Cheapflightsfares)

Popular in

November

Cheapest in

October

Average price

$206

Good round-trip deal

$140 or less

Good one-way deal

$103 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Austin Bergstrom flights.
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From Knoxville McGhee Tyson to Austin Bergstrom
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One-way flight from Knoxville McGhee Tyson to Austin Bergstrom
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Austin Bergstrom.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Austin Bergstrom.
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Find flight deals from Knoxville to Austin

Cheapest flights from Knoxville to Austin
Explore the most affordable flight options available from Knoxville to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 12/51:41 pmTYS - AUS
Nonstop2h 34mAllegiant Air
Mon 12/84:05 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Deal found 10/12$92
This Booking.com deal was found by Cheapflights users on 10/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:50 pmTYS - AUS
Nonstop2h 39mAllegiant Air
Mon 11/103:19 pmAUS - TYS
Nonstop2h 04mAllegiant Air
Deal found 10/12$123
This eDestinos deal was found by Cheapflights users on 10/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:30 amTYS - AUS
Nonstop2h 34mAllegiant Air
Mon 12/226:47 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Deal found 10/12$129
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 10/1712:45 pmTYS - AUS
Nonstop2h 28mAllegiant Air
Sun 10/196:41 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Deal found 10/12$140
This Booking.com deal was found by Cheapflights users on 10/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:14 pmTYS - AUS
Nonstop2h 34mAllegiant Air
Mon 12/226:47 pmAUS - TYS
Nonstop2h 09mAllegiant Air
Deal found 10/12$155
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Fri 12/51:41 pmTYS - AUS
Nonstop2h 34mMultiple Airlines
Sun 12/76:45 amAUS - TYS
1 stop8h 07mMultiple Airlines
Deal found 10/13$170
This Mytrip deal was found by Cheapflights users on 10/12. 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 12/59:23 amTYS - AUS
1 stop15h 28mMultiple Airlines
Mon 12/84:05 pmAUS - TYS
Nonstop2h 09mMultiple Airlines
Deal found 10/12$174

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Austin 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 October 14, 2025.
Use the filters below to find and compare flights from Knoxville to Austin that are best for you.

Fly from

Knoxville

Fly to

Austin

Route

Depart

Return

Price

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 12/20

8:30 am-10:04 am

Nonstop2h 34m

Austin Bergstrom

Mon 12/22

6:47 pm-9:56 pm

Nonstop2h 09m

$129

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 11/7

12:50 pm-2:29 pm

Nonstop2h 39m

Austin Bergstrom

Sun 11/9

2:23 pm-1:57 pm

1 stop22h 34m

$210

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sun 11/9

7:00 am-9:42 am

1 stop27h 42m

Austin Bergstrom

Sun 11/16

9:45 am-6:22 pm

1 stop7h 37m

$228

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 12/5

9:23 am-11:51 pm

1 stop15h 28m

Austin Bergstrom

Sun 12/7

1:13 pm-8:33 am

2 stops18h 20m

$244

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Tue 11/4

5:44 am-9:38 am

1 stop4h 54m

Austin Bergstrom

Tue 11/11

6:40 am-2:48 pm

1 stop7h 08m

$251

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 11/13

9:54 am-10:49 pm

1 stop13h 55m

Austin Bergstrom

Mon 11/17

5:56 pm-12:57 pm

2 stops42h 01m

$255

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 12/5

5:34 pm-11:51 pm

3 stops31h 17m

Austin Bergstrom

Mon 12/8

4:05 pm-7:14 pm

Nonstop2h 09m

$255

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 12/5

5:25 am-9:50 am

1 stop5h 25m

Austin Bergstrom

Sun 12/7

8:00 am-2:51 pm

1 stop5h 51m

$269

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 12/5

3:56 pm-9:48 pm

1 stop6h 52m

Austin Bergstrom

Mon 12/8

5:30 am-11:47 am

1 stop5h 17m

$269

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 12/12

1:41 pm-3:15 pm

Nonstop2h 34m

$52

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 20 results
1
2

Compare providers for flights from Knoxville to Austin

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 Knoxville to Austin in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Knoxville-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Austin 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 Knoxville-Austin 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 Knoxville to Austin

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Austin. Price data was last updated on October 10, 2025.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Knoxville to Austin (average of $86). Flying from Knoxville to Austin in November is currently the most expensive (average of $125). 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 TYS to AUS?

Find hourly flight availability from Knoxville to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

One of the essential ways to save on airfare from Knoxville to Austin is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 56% on airfare.

What is the cheapest day to fly from Knoxville to Austin?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Austin. Price data was last updated on October 5, 2025.

Travelers seeking maximum savings on their Knoxville to Austin flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated October 14, 2025.
Read through reviews of airlines operating flights from Knoxville to Austin, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,976 reviews
Delta
8.0
Very good
7,975 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,042 reviews
Delta
8.0
Very good
7,975 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Allegiant Air
7.2
Good
693 reviews
Delta
8.0
Very good
7,975 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Austin. 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 Knoxville to Austin flight route?

    This flight path from Knoxville McGhee Tyson to Austin Bergstrom was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Knoxville to Austin?

    Departing from Knoxville to Austin will take you 2h 34m. Knoxville and Austin are separated by a distance of 881 mi. Generally, flights for this route are nonstop.

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

    Flying on Allegiant Air is currently your cheapest option to Austin, with prices starting at $88. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $216 and $229, respectively. Allegiant Air is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Knoxville to Austin?

    The cheapest flight price from Knoxville to Austin is $68. On average you can expect to pay $179. The most popular route, (Knoxville McGhee Tyson - Austin Bergstrom), can usually be booked for $123.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Knoxville to Austin (average of $86). Flying from Knoxville to Austin in November is currently the most expensive (average of $125). 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 Austin?

Book flights to Austin if you plan to visit one of these locations
Round Rock
San Marcos
Fredericksburg
Cedar Park
Pflugerville
Dripping Springs
Georgetown
Canyon Lake
Seguin
Horseshoe Bay

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Top 4 airlines flying from Knoxville to Austin

Discover the top 4 airlines that operate flights from Knoxville to Austin. 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$150FlexibilityNo cancel feeOn-time88%
DeltaCheapest$216Average$319FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$229Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$233Average$343FlexibilityNo cancel feeOn-time69%

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