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$48+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — AUS
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Austin Bergstrom are usually found in April or September, booked 67 days in advance, depart on a Thursday or Monday 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$86
(Gotogate)

One-way from

$48
(Cheapflightsfares)

Popular in

November

Cheapest in

April

Average price

$306

Good round-trip deal

$90 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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Highest demand for flights based on searches. 10% potential increase in price ($33 potential increase over avg. RT price).
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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 March 2025
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Price to beat on a round-trip 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 March 26, 2025.

This Gotogate deal was found by Cheapflights users on 3/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/216:00 amTYS - AUS
Nonstop2h 37mAllegiant Air
Fri 4/251:20 pmAUS - TYS
Nonstop2h 05mAllegiant Air
Deal found 3/25$86
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Mon 5/55:15 pmTYS - AUS
1 stop25h 24mMultiple Airlines
Mon 5/121:20 pmAUS - TYS
Nonstop2h 05mMultiple Airlines
Deal found 3/25$164
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:59 amTYS - AUS
1 stop5h 52mAmerican Airlines
Tue 4/293:48 pmAUS - TYS
1 stop7h 07mAmerican Airlines
Deal found 3/25$199
This Delta deal was found by Cheapflights users on 3/24. 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.
Wed 4/1612:55 pmTYS - AUS
1 stop6h 15mDelta
Tue 4/2212:52 pmAUS - TYS
1 stop7h 38mDelta
Deal found 3/24$217
This Frontier deal was found by Cheapflights users on 3/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/174:31 pmTYS - AUS
1 stop8h 02mFrontier
Sun 4/206:10 amAUS - TYS
1 stop8h 36mFrontier
Deal found 3/25$238
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/289:35 amTYS - AUS
1 stop4h 24mUnited Airlines
Sun 6/17:00 amAUS - TYS
1 stop5h 23mUnited Airlines
Deal found 3/25$243

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 March 26, 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

Mon 4/21

6:00 am-7:37 am

Nonstop2h 37m

Austin Bergstrom

Fri 4/25

1:20 pm-4:25 pm

Nonstop2h 05m

$86

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 5/5

5:15 pm-5:39 pm

1 stop25h 24m

Austin Bergstrom

Mon 5/12

1:20 pm-4:25 pm

Nonstop2h 05m

$164

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Tue 4/22

6:18 pm-10:59 pm

1 stop5h 41m

Austin Bergstrom

Sat 4/26

6:15 am-12:29 pm

1 stop5h 14m

$199

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 4/16

12:55 pm-6:10 pm

1 stop6h 15m

Austin Bergstrom

Tue 4/22

12:52 pm-9:30 pm

1 stop7h 38m

$217

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 4/17

4:31 pm-11:33 pm

1 stop8h 02m

Austin Bergstrom

Sun 4/20

6:10 am-3:46 pm

1 stop8h 36m

$238

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Wed 5/28

9:35 am-12:59 pm

1 stop4h 24m

Austin Bergstrom

Sun 6/1

7:00 am-1:23 pm

1 stop5h 23m

$243

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 4/21

6:00 am-7:37 am

Nonstop2h 37m

$48

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sun 4/20

12:14 pm-3:49 pm

1 stop4h 35m

$100

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sat 5/10

10:50 am-5:46 pm

2 stops7h 56m

$105

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 4/21

4:12 pm-5:39 pm

1 stop26h 27m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 12 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust 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 March 21, 2025.

Booking 67 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, January is the cheapest month in which you can book a flight from Knoxville to Austin (average of $286). Flying from Knoxville to Austin in March is currently the most expensive (average of $362). 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 March 26, 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 morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 52% 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 March 23, 2025.

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

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 March 26, 2025.
See what other customers who have flown with Delta, United Airlines and Allegiant Air from Knoxville to Austin have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
731 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,272 reviews
Delta
8.0
Very good
7,891 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $86. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $199 and $217, respectively. Allegiant Air is 70% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $48. Users have also found prices from $100 and $105 on American Airlines and United Airlines, respectively.

  • What are the cheapest flights from Knoxville to Austin?

    The cheapest flight price from Knoxville to Austin is $50. On average you can expect to pay $130. The most popular route, (Knoxville McGhee Tyson - Austin Bergstrom), can usually be booked for $86.

  • 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, January is the cheapest month in which you can book a flight from Knoxville to Austin (average of $286). Flying from Knoxville to Austin in March is currently the most expensive (average of $362). 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
San Marcos
Georgetown
Seguin
Fredericksburg
Round Rock
Dripping Springs
Cedar Park
Pflugerville
Bastrop
Canyon Lake
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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$159FlexibilityNo cancel feeOn-time88%
DeltaCheapest$228Average$346FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$328FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$406FlexibilityNo cancel feeOn-time69%
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