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Cheap flights from Austin to Knoxville from $57

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Knoxville departing on 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Austin to Knoxville (AUS-TYS)

Cheap round-trip flights

Allegiant Air Logo
6:41 pm - 9:50 pmAUS-TYS
2h 09mnonstop
Allegiant Air Logo
4:23 pm - 5:51 pmTYS-AUS
2h 28mnonstop
$124Allegiant Air
Find Deal
Thu, Oct 2 - Sun, Oct 5
Allegiant Air Logo
3:03 pm - 6:12 pmAUS-TYS
2h 09mnonstop
Allegiant Air Logo
12:45 pm - 2:13 pmTYS-AUS
2h 28mnonstop
$134Allegiant Air
Find Deal
Fri, Oct 3 - Mon, Oct 6
Frontier Logo
6:30 am - 7:50 pmAUS-TYS
12h 20m1 stop
Frontier Logo
8:35 pm - 8:58 pmTYS-AUS
25h 23m1 stop
$179Frontier
Find Deal
Thu, Sep 4 - Mon, Sep 8
Logo
8:00 am - 1:33 pmAUS-TYS
28h 33m1 stop
Logo
4:23 pm - 5:51 pmTYS-AUS
2h 28mnonstop
$202
Find Deal
Wed, Oct 1 - Thu, Oct 9
Logo
6:41 pm - 9:50 pmAUS-TYS
2h 09mnonstop
Logo
5:44 pm - 5:25 pmTYS-AUS
24h 41m2 stops
$207
Find Deal
Thu, Oct 2 - Sun, Oct 5
Frontier Logo
6:00 am - 6:22 pmAUS-TYS
11h 22m1 stop
Frontier Logo
7:17 pm - 12:32 amTYS-AUS
6h 15m1 stop
$212Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Delta Logo
5:35 am - 1:07 pmAUS-TYS
6h 32m1 stop
Delta Logo
5:44 am - 11:05 amTYS-AUS
6h 21m1 stop
$249Delta
Find Deal
Fri, Oct 3 - Tue, Oct 7
American Airlines Logo
5:00 am - 11:45 amAUS-TYS
5h 45m1 stop
American Airlines Logo
7:43 pm - 11:27 pmTYS-AUS
4h 44m1 stop
$251American Airlines
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Wed, Oct 22 - Wed, Oct 22
American Airlines Logo
6:06 pm - 12:21 amAUS-TYS
5h 15m1 stop
American Airlines Logo
4:37 pm - 9:06 pmTYS-AUS
5h 29m1 stop
$254American Airlines
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Fri, Sep 5 - Tue, Sep 9
Delta Logo
8:00 am - 1:08 pmAUS-TYS
4h 08m1 stop
Delta Logo
5:45 am - 9:40 amTYS-AUS
4h 55m1 stop
$259Delta
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Tue, Sep 2 - Sat, Sep 6

Allegiant Air flights from Austin to Knoxville

Our best Allegiant Air deals on Austin to Knoxville flight tickets
Allegiant Air
Oct 2
AUS6:41 pmAustin Bergstrom
2h 09m
TYS9:50 pmKnoxville McGhee Tyson
Oct 5
TYS4:23 pmKnoxville McGhee Tyson
2h 28m
AUS5:51 pmAustin Bergstrom
$124
Find similar
Allegiant Air
Oct 3
AUS3:03 pmAustin Bergstrom
2h 09m
TYS6:12 pmKnoxville McGhee Tyson
Oct 6
TYS12:45 pmKnoxville McGhee Tyson
2h 28m
AUS2:13 pmAustin Bergstrom
$134
Find similar
Allegiant Air
Sep 1
AUS10:22 amAustin Bergstrom
2h 17m
TYS1:39 pmKnoxville McGhee Tyson
Sep 19
TYS12:45 pmKnoxville McGhee Tyson
2h 22m
AUS2:07 pmAustin Bergstrom
$144
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Delta flights from Austin to Knoxville

Our best Delta deals on Austin to Knoxville flight tickets
Delta
Oct 3
AUS5:35 amAustin Bergstrom
6h 32m
1 stop
TYS1:07 pmKnoxville McGhee Tyson
Oct 7
TYS5:44 amKnoxville McGhee Tyson
6h 21m
1 stop
AUS11:05 amAustin Bergstrom
$249
Find similar
Delta
Sep 2
AUS8:00 amAustin Bergstrom
4h 08m
1 stop
TYS1:08 pmKnoxville McGhee Tyson
Sep 6
TYS5:45 amKnoxville McGhee Tyson
4h 55m
1 stop
AUS9:40 amAustin Bergstrom
$259
Find similar
Delta
Sep 11
AUS5:35 amAustin Bergstrom
6h 32m
1 stop
TYS1:07 pmKnoxville McGhee Tyson
Sep 13
TYS5:45 amKnoxville McGhee Tyson
6h 09m
1 stop
AUS10:54 amAustin Bergstrom
$304
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 20, 2025.
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

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 10/2

6:41 pm-9:50 pm

Nonstop2h 09m

Knoxville McGhee Tyson

Sun 10/5

4:23 pm-5:51 pm

Nonstop2h 28m

$124

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 10/3

3:03 pm-6:12 pm

Nonstop2h 09m

Knoxville McGhee Tyson

Mon 10/6

12:45 pm-2:13 pm

Nonstop2h 28m

$134

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 9/4

6:30 am-7:50 pm

1 stop12h 20m

Knoxville McGhee Tyson

Mon 9/8

8:35 pm-8:58 pm

1 stop25h 23m

$179

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 10/1

8:00 am-1:33 pm

1 stop28h 33m

Knoxville McGhee Tyson

Thu 10/9

4:23 pm-5:51 pm

Nonstop2h 28m

$202

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 10/2

6:41 pm-9:50 pm

Nonstop2h 09m

Knoxville McGhee Tyson

Sun 10/5

5:44 pm-5:25 pm

2 stops24h 41m

$207

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Thu 11/13

6:00 am-6:22 pm

1 stop11h 22m

Knoxville McGhee Tyson

Sun 11/16

7:17 pm-12:32 am

1 stop6h 15m

$212

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 10/3

5:35 am-1:07 pm

1 stop6h 32m

Knoxville McGhee Tyson

Tue 10/7

5:44 am-11:05 am

1 stop6h 21m

$249

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Wed 10/22

5:00 am-11:45 am

1 stop5h 45m

Knoxville McGhee Tyson

Wed 10/22

7:43 pm-11:27 pm

1 stop4h 44m

$251

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Fri 9/5

6:06 pm-12:21 am

1 stop5h 15m

Knoxville McGhee Tyson

Tue 9/9

4:37 pm-9:06 pm

1 stop5h 29m

$254

AustinKnoxville

AUS - TYS

AUSTYS

Austin Bergstrom

Tue 9/2

8:00 am-1:08 pm

1 stop4h 08m

Knoxville McGhee Tyson

Sat 9/6

5:45 am-9:40 am

1 stop4h 55m

$259

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Knoxville from

How to get the cheapest flight ticket from Austin to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Knoxville?

The month of August is, on average, the cheapest month to fly to Knoxville from Austin, with most prices found around $238. If you aren’t able to travel during the month of August, then book flights to Knoxville from Austin during October instead. Flights to Knoxville in October, while not as cheap as those in August, still average around $259.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Austin to Knoxville is on a Sunday. Travelers who choose to depart for Knoxville on a Sunday will often find tickets for as low as $155. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Austin to Knoxville for around $340.

What is the cheapest time of day to depart on your flight to Knoxville?

In the evening is the cheapest time of day to fly from Austin to Knoxville when you can find flight prices for as low as $104. Flying to Knoxville in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $214.

What is the cheapest Austin Bergstrom to Knoxville McGhee Tyson flight route?

Fly from Austin Bergstrom to Knoxville McGhee Tyson for the best Austin Bergstrom - Knoxville McGhee Tyson flight prices

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

You are more likely to see cheaper flights to Knoxville from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $286 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Austin for as low as $193 on momondo.

What cabin class options are available on Austin Bergstrom to Knoxville McGhee Tyson flights?

There are 1 cabin classes available to choose from on Austin Bergstrom to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Austin to Knoxville flight prices changed over time?

As of August 2025, prices for Austin to Knoxville flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Austin to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Knoxville (AUS to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Knoxville

Best Price Found

$57

Fastest flight time

2h 04m

Direct flights

Mon, Tue, Fri and Sat

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Austin in the past 72 hours is $57. The best round-trip flight deal from Austin to Knoxville found on momondo in the last 72 hours is $124.
The fastest flight from Austin to Knoxville takes 2h 04m
Direct flights go from Austin to Knoxville on Monday, Tuesday, Friday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)
Search flight deals

  • How far is Austin Bergstrom to Knoxville McGhee Tyson by plane?

    The straight-line distance from Austin Bergstrom to Knoxville McGhee Tyson is 889.3 mi. 2h 04m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport refresh daily.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Austin to Knoxville?

  • What is the most popular airline from Austin to Knoxville?

Best airlines flying from Austin to Knoxville

Compare and see reviews for airlines that fly from Austin to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $85Free CancellationRating
7.2
701 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $174Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
DeltaPriceFrom $208Free CancellationRating
7.9
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Crossville
Maryville
Murphy
Newport
Lenoir City
Alcoa
Oak Ridge
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Knoxville?

Finding the right flight to Knoxville from Austin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knoxville quick and easy, saving you time and money.

Can I find flights from Austin to Knoxville with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Austin to Knoxville flights to just show those with flexible booking policies.

How can momondo help me find flights from Austin to Knoxville?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Knoxville from Austin.

I’m not ready to book a flight from Austin to Knoxville right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Austin to Knoxville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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