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.

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 $83. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $245 and $259, respectively. Allegiant Air is 71% 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 $45. Users have also found prices from $130 and $239 on Frontier and Delta, respectively.

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.

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).

What are the cheapest flights from Knoxville to Austin?

The cheapest flight price from Knoxville to Austin is $52. On average you can expect to pay $101. The most popular route, (Knoxville McGhee Tyson - Austin Bergstrom), can usually be booked for $83.

What are the most popular airlines that fly from Knoxville to Austin?

The most popular airlines flying from Knoxville to Austin are American Airlines, Delta and Allegiant Air. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Knoxville to Austin?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 341% on the overall cost on flights from Knoxville to Austin.

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

Travelers have found it’s best to book a flight 44 days in advance to save up to 254% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Knoxville to Austin 1-2 weeks in advance for as low as $173, or $338 for flights within the next 24 hours.

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

September is one of the best times of the year to fly to Austin from Knoxville. Prices for September average $291 per person but you can even find prices for as low as $88. The most expensive prices can be found in the month of November. Opting for a September flight can save you 31% on your journey compared to booking in November

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.

$45+ Flights from Knoxville to Austin

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Austin Bergstrom are usually found in September or March, booked 67 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Knoxville to Austin

Round-trip from	$83 (Booking.com)
One-way from	$45 (Booking.com)
Popular in	November
Cheapest in	September
Average price	$273
Good round-trip deal	$113 or less
Good one-way deal	$56 or less

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 ($32 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($9 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 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 July 1, 2025.

Fri 8/86:55 amTYS - AUS

Nonstop2h 20mAllegiant Air

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mAllegiant Air

Deal found 6/30

$83

Mon 8/46:00 amTYS - AUS

1 stop14h 27mMultiple Airlines

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mMultiple Airlines

Deal found 6/30

$167

Tue 8/55:30 amTYS - AUS

1 stop6h 29mDelta

Mon 8/1111:47 amAUS - TYS

1 stop7h 19mDelta

Deal found 6/30

$245

Fri 7/185:58 pmTYS - AUS

1 stop7h 20mAmerican Airlines

Sun 7/204:12 pmAUS - TYS

1 stop6h 40mAmerican Airlines

Deal found 6/30

$259

Thu 9/188:26 pmTYS - AUS

2 stops16h 18mFrontier

Mon 9/226:30 amAUS - TYS

1 stop12h 11mFrontier

Deal found 6/30

$286

Best flights from Knoxville to Austin
Discover carefully curated flight deals from Knoxville to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Fri 8/86:55 amTYS - AUS

Nonstop2h 20mAllegiant Air

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mAllegiant Air

Deal found 6/30

$83

Mon 8/46:00 amTYS - AUS

1 stop14h 27mMultiple Airlines

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mMultiple Airlines

Deal found 6/30

$167

Tue 8/55:30 amTYS - AUS

1 stop6h 29mDelta

Mon 8/1111:47 amAUS - TYS

1 stop7h 19mDelta

Deal found 6/30

$245

Fri 7/185:58 pmTYS - AUS

1 stop7h 20mAmerican Airlines

Sun 7/204:12 pmAUS - TYS

1 stop6h 40mAmerican Airlines

Deal found 6/30

$259

Thu 9/188:26 pmTYS - AUS

2 stops16h 18mFrontier

Mon 9/226:30 amAUS - TYS

1 stop12h 11mFrontier

Deal found 6/30

$286

Last-minute flights from Knoxville to Austin
Discover last-minute flight deals from Knoxville to Austin. Data last updated July 1, 2025 and is based on user searches.

Mon 7/76:55 amTYS - AUS

Nonstop2h 20mAllegiant Air

Fri 7/119:05 amAUS - TYS

Nonstop2h 17mAllegiant Air

Deal found 7/1

$237

Mon 7/75:58 pmTYS - AUS

1 stop7h 20mAmerican Airlines

Sat 7/124:49 pmAUS - TYS

1 stop6h 03mAmerican Airlines

Deal found 7/1

$324

Tue 7/87:50 amTYS - AUS

1 stop8h 00mDelta

Tue 7/158:00 amAUS - TYS

1 stop6h 07mDelta

Deal found 7/1

$284

Tue 7/87:00 amTYS - AUS

2 stops9h 22mUnited Airlines

Tue 7/154:20 pmAUS - TYS

1 stop6h 07mUnited Airlines

Deal found 7/1

$475

Thu 7/105:25 pmTYS - AUS

1 stop7h 19mMultiple Airlines

Mon 7/149:05 amAUS - TYS

Nonstop2h 17mMultiple Airlines

Deal found 6/30

$264

Fri 7/185:58 pmTYS - AUS

1 stop7h 20mAmerican Airlines

Sun 7/204:12 pmAUS - TYS

1 stop6h 40mAmerican Airlines

Deal found 6/30

$259

Mon 8/46:00 amTYS - AUS

1 stop14h 27mMultiple Airlines

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mMultiple Airlines

Deal found 6/30

$167

Tue 8/55:30 amTYS - AUS

1 stop6h 29mDelta

Mon 8/1111:47 amAUS - TYS

1 stop7h 19mDelta

Deal found 6/30

$245

Fri 8/86:55 amTYS - AUS

Nonstop2h 20mAllegiant Air

Mon 8/119:05 amAUS - TYS

Nonstop2h 17mAllegiant Air

Deal found 6/30

$83

One-way flights from Knoxville to Austin
Search for one-way flight options from Knoxville to Austin. Find affordable one-way fares based on user searches. Data last updated July 1, 2025.

Fri 8/86:55 amTYS - AUS

Nonstop2h 20mAllegiant Air

Deal found 6/30

$45

Fri 8/88:52 amTYS - AUS

1 stop14h 26mMultiple Airlines

Deal found 6/30

$109

Sun 8/35:25 pmTYS - AUS

1 stop7h 19mFrontier

Deal found 6/30

$130

Fri 8/82:36 pmTYS - AUS

1 stop5h 06mDelta

Deal found 7/1

$239

Fri 8/87:00 amTYS - AUS

2 stops9h 22mUnited Airlines

Deal found 7/1

$304

Mon 7/76:00 amTYS - AUS

1 stop4h 35mAmerican Airlines

Deal found 6/30

$375

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 8/8

6:55 am-8:15 am

Nonstop2h 20m

Austin Bergstrom

Mon 8/11

9:05 am-12:22 pm

Nonstop2h 17m

$83

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Mon 8/4

6:00 am-7:27 pm

1 stop14h 27m

Austin Bergstrom

Mon 8/11

9:05 am-12:22 pm

Nonstop2h 17m

$167

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Tue 8/5

5:30 am-10:59 am

1 stop6h 29m

Austin Bergstrom

Mon 8/11

11:47 am-8:06 pm

1 stop7h 19m

$245

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 7/18

5:58 pm-12:18 am

1 stop7h 20m

Austin Bergstrom

Sun 7/20

4:12 pm-11:52 pm

1 stop6h 40m

$259

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Thu 9/18

8:26 pm-11:44 am

2 stops16h 18m

Austin Bergstrom

Mon 9/22

6:30 am-7:41 pm

1 stop12h 11m

$286

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 8/8

6:55 am-8:15 am

Nonstop2h 20m

$45

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 8/8

8:52 am-10:18 pm

1 stop14h 26m

$109

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Sun 8/3

5:25 pm-11:44 pm

1 stop7h 19m

$130

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 8/8

2:36 pm-6:42 pm

1 stop5h 06m

$239

KnoxvilleAustin

TYS - AUS

TYSAUS

Knoxville McGhee Tyson

Fri 8/8

7:00 am-3:22 pm

2 stops9h 22m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 11 results

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?

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?

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 at noon could potentially save you up to 50% on airfare.

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

Travelers seeking maximum savings on their Knoxville to Austin flight should consider departing on Friday at noon 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.

Reviews of airlines servicing Austin

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

7,973 reviews

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

7,973 reviews

Delta

8.0

Very good

7,973 reviews

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!

United Airlines

7.4

Good

8,858 reviews

Delta

8.0

Very good

7,973 reviews

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

7,973 reviews

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

710 reviews

Delta

8.0

Very good

7,973 reviews

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

3,291 reviews

Delta

8.0

Very good

7,973 reviews

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

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.
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 $83. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $245 and $259, respectively. Allegiant Air is 71% 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 $45. Users have also found prices from $130 and $239 on Frontier and Delta, respectively.
What are the cheapest flights from Knoxville to Austin?
The cheapest flight price from Knoxville to Austin is $52. On average you can expect to pay $101. The most popular route, (Knoxville McGhee Tyson - Austin Bergstrom), can usually be booked for $83.
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.

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Top 4 airlines flying from Knoxville to Austin

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$88	Average$159	FlexibilityNo cancel fee	On-time88%
Delta	Cheapest$216	Average$326	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$228	Average$349	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$248	Average$393	FlexibilityNo cancel fee	On-time69%

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$45+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Austin with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Austin Bergstrom are usually found in September or March, booked 67 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Knoxville to Austin

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Knoxville to Austin

Cheapest flights from Knoxville to AustinExplore 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 July 1, 2025.

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 July 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Knoxville to Austin that are best for you.

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.

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 June 27, 2025.

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

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 July 1, 2025.

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 June 29, 2025.

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 July 1, 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.

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?

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

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

What are the cheapest flights from Knoxville to Austin?

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

How can I find direct flights from Knoxville to Austin?

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

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

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Top 4 airlines flying from Knoxville to Austin

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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 July 1, 2025.