AUS - TYS

$43 Find Cheap Flights from Austin to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Knoxville departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Knoxville.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Knoxville.
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Everything you should know

Cheapest round-trip
$101
Typical prices: $406-$214
Allegiant Air
Mon 9/7Fri 9/11
AUS - TYS • Non-stop
Cheapest one-way
$43
Typical prices: $80-$297
Allegiant Air
Fri 7/24
AUS - TYS • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 2h 14m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $218 (round-trip)
Shortest trip • 4h 44m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Austin to Knoxville (AUS-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Knoxville

Mon, Sep 7 - Fri, Sep 11
Allegiant Air Logo
9:13 am - 12:27 pm
AUS
-
TYS
2h 14mnonstop
Allegiant Air Logo
8:00 am - 9:23 am
TYS
-
AUS
2h 23mnonstop
$101Allegiant Air
Mon, Jul 13 - Mon, Jul 27
Allegiant Air Logo
8:42 am - 12:03 pm
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 7:52 am
TYS
-
AUS
2h 22mnonstop
$107Allegiant Air
Fri, Jul 17 - Mon, Jul 20
Allegiant Air Logo
8:42 am - 12:03 pm
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 7:52 am
TYS
-
AUS
2h 22mnonstop
$109Allegiant Air
Fri, Jun 12 - Mon, Jun 29
Allegiant Air Logo
8:38 am - 11:59 am
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 7:48 am
TYS
-
AUS
2h 18mnonstop
$110Allegiant Air
Fri, Jun 19 - Mon, Jun 29
Allegiant Air Logo
8:38 am - 11:59 am
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 7:48 am
TYS
-
AUS
2h 18mnonstop
$115Allegiant Air
Mon, May 25 - Fri, Jun 5
Allegiant Air Logo
8:26 am - 11:37 am
AUS
-
TYS
2h 11mnonstop
Allegiant Air Logo
7:25 am - 8:43 am
TYS
-
AUS
2h 18mnonstop
$117Allegiant Air
Mon, Jul 13 - Mon, Jul 27
Allegiant Air Logo
8:42 am - 12:03 pm
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 7:52 am
TYS
-
AUS
2h 22mnonstop
$118Allegiant Air
Mon, May 25 - Mon, Jun 1
Allegiant Air Logo
8:26 am - 11:37 am
AUS
-
TYS
2h 11mnonstop
Allegiant Air Logo
6:00 am - 7:36 am
TYS
-
AUS
2h 36mnonstop
$121Allegiant Air
Mon, May 25 - Mon, Jun 1
Allegiant Air Logo
8:26 am - 11:37 am
AUS
-
TYS
2h 11mnonstop
Allegiant Air Logo
6:00 am - 7:36 am
TYS
-
AUS
2h 36mnonstop
$122Allegiant Air
Mon, Jul 27 - Mon, Aug 10
Allegiant Air Logo
8:42 am - 12:03 pm
AUS
-
TYS
2h 21mnonstop
Allegiant Air Logo
6:30 am - 8:06 am
TYS
-
AUS
2h 36mnonstop
$123Allegiant Air
Booking Insights

KAYAK's insights & trends for Austin to Knoxville flights

Get data-powered insights and trends into flights from Austin to Knoxville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Austin to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Austin to Knoxville departing in September.

What’s the cheapest day of the week to fly from Austin to Knoxville?

The average price of all round-trip flights from Austin to Knoxville clicked on KAYAK for each day over the last 12 months.

For Austin to Knoxville, Sunday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Knoxville back to Austin, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Austin to Knoxville is December, where tickets cost $211 (return) on average. On the other hand, the most expensive months are April and February, where the average cost of round-trip tickets is $368 and $360 respectively.

Can I save money by flying with a layover from Austin to Knoxville?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $338, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Austin to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Austin to Knoxville, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$43
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Austin to Knoxville

When to book flights from Austin to Knoxville

Are your dates flexible? Find out the best times to travel from Austin to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Austin to Knoxville

  • Where can I get car rentals after landing at McGhee Tyson Airport in Knoxville?

    Car rentals offer the most convenient form of transport for travelers arriving at McGhee Tyson Airport in Knoxville who would like to connect to various destinations in the city. Enterprise car rental has an onsite office in the airport, which is located in the main terminal near the baggage claim.

  • Which kid-friendly amenities are available on flights from Austin to Knoxville?

    The kid-friendly entertainment offered by American Airlines is one of the reasons you should consider using the airline for your flight from Austin to Knoxville when traveling with your family and children. If you use Allegiant Airlines to fly from Austin to Knoxville, your kids are guaranteed to enjoy the company of their parents because the airline does not allow unaccompanied minors to travel on their own.

  • Which other cities does McGhee Tyson Airport serve apart from Knoxville?

    Located in Alcoa, 12 miles from Knoxville, McGhee Tyson Airport serves other cities such as Oak Ridge and Maryville. Travelers from Austin to Knoxville can, therefore, visit any of these cities after landing at McGhee Tyson Airport.

  • How can one move to Knoxville city center from McGhee Tyson Airport?

    Airport shuttles are the most convenient means of transport from McGhee Tyson Airport to Knoxville city center. Additionally, travelers can use rental cars from Enterprise and Budget to connect from the airport to the city center.

  • How many flights are there between Austin and Knoxville per day?

    Each day, there are 2 nonstop flights that take off from Austin and land in Knoxville, with an average flight time of 2h 14m. The most common departure time is 8:00 am and most flights take off in the morning. Each week, there are 4 flights and there are the same amount of flights each day (2).

  • What is the cheapest flight from Austin to Knoxville?

    In the last 3 days, the lowest price for a flight from Austin to Knoxville was $43 for a one-way ticket and $101 for a round-trip.

  • Do I need a passport to fly between Austin and Knoxville?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Austin to Knoxville?

    Only American Airlines offers inflight Wi-Fi service on the Austin to Knoxville flight route.

  • Which aircraft models fly most regularly from Austin to Knoxville?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Austin to Knoxville flight route.

  • Which airline alliances offer flights from Austin to Knoxville?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Austin and Knoxville, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Austin to Knoxville?

    You can catch a nonstop flight from Austin to Knoxville on on Monday, and Friday.

  • Which is the best airline for flights from Austin to Knoxville, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Austin to Knoxville are Delta and Southwest. With an average price for the route of $361 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $377 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Austin to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Austin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Austin with another airline. Booking your flights between Austin and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Austin to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $117 or less round-trip.
  • You can catch up conveniently with the earliest flight from Austin to Knoxville, if you spend the night at one of the hotels near the airport. Hampton Inn & Suites Austin-Airport, located 1.9 miles from the airport, is an ideal facility to keep you near the airport for convenient traveling.
  • The availability of various means of transport to AUS makes it the departure airport of choice among travelers leaving Austin to Knoxville despite other airports like The South Terminal at Austin- Bergstrom offering similar flights. You can use a taxi, rental car, bus, or airport shuttle to connect from the city center or downtown to connect to their airport before catching up with your flight to Knoxville.
  • Pet lovers have nothing to worry about when planning for their flights from Austin to Knoxville. The pet-friendly policy at AUS enables them to remain in the company of their favorite pet while traveling to Knoxville. According to this policy, ticketed passengers can have their registered pets with them. However, the passengers must ensure they remain in their carriers at all times.
  • Having the largest number of flights per day compared to the other airlines, American Airlines offers the most reliable flight services for travelers from AUS to McGhee Tyson Airport (TYS) in Knoxville. However, travelers can enjoy greater discounts and other exciting deals if they use Allegiant Airlines when flying from Austin to Knoxville.
  • Travelers with reduced mobility will enjoy curb-to-aircraft wheelchair services at AUS when seeking to board their flight to Knoxville. All airlines serving flights from Austin to Knoxville, including American Airlines, Allegiant Airlines, Frontier, and United Airlines, all have their staff available to offer assistance through the airport for those with mobility or visual impairment.

Prefer to fly direct from Austin to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Austin Bergstrom to Knoxville McGhee Tyson.
Find which airlines fly direct from Austin Bergstrom Airport to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Austin Bergstrom to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Austin Bergstrom

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 5 airlines serving from Austin to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Austin to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4305 reviews
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
Airline reviews

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

10.0 Excellentdebra, Apr 2026
LBB - LAS
Read more Southwest reviews

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Plane was late. Zero service for 2+ hour flight and it was not that bumpy.

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

I elected to pay for the upgrades and found very little difference

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Overall we had a good experience during our flight from San Francisco to Houston.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

Cancelled BOYH legs of our flight home 30 min before initial boarding

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Everything you need to know for your flight from Austin to Knoxville

Information on your arrival and departure airports