AUS - TYS

$81 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 11/20. 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Knoxville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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, Dec 29 - Mon, Jan 5
Allegiant Air Logo
1:46 pm - 4:55 pmAUS-TYS
2h 09mnonstop
Allegiant Air Logo
11:22 am - 12:56 pmTYS-AUS
2h 34mnonstop
$153Allegiant Air
Find Deal
Fri, Dec 5 - Mon, Dec 8
Allegiant Air Logo
4:05 pm - 7:14 pmAUS-TYS
2h 09mnonstop
Allegiant Air Logo
1:41 pm - 3:15 pmTYS-AUS
2h 34mnonstop
$155Allegiant Air
Find Deal
Fri, Dec 12 - Sun, Dec 14
Multiple Airlines Logo
4:05 pm - 7:14 pmAUS-TYS
2h 09mnonstop
Multiple Airlines Logo
4:52 pm - 12:14 amTYS-AUS
8h 22m1 stop
$157Multiple Airlines
Find Deal
Wed, Dec 24 - Mon, Jan 5
Allegiant Air Logo
8:24 am - 11:33 amAUS-TYS
2h 09mnonstop
Allegiant Air Logo
11:22 am - 12:56 pmTYS-AUS
2h 34mnonstop
$158Allegiant Air
Find Deal
Mon, Dec 1 - Mon, Dec 8
Allegiant Air Logo
7:44 pm - 10:52 pmAUS-TYS
2h 08mnonstop
Allegiant Air Logo
1:41 pm - 3:15 pmTYS-AUS
2h 34mnonstop
$163Allegiant Air
Find Deal
Wed, Dec 3 - Mon, Dec 8
Multiple Airlines Logo
6:45 am - 1:11 pmAUS-TYS
29h 26m1 stop
Multiple Airlines Logo
1:41 pm - 3:15 pmTYS-AUS
2h 34mnonstop
$176Multiple Airlines
Find Deal
Mon, Dec 1 - Fri, Dec 5
Allegiant Air Logo
7:44 pm - 10:52 pmAUS-TYS
2h 08mnonstop
Allegiant Air Logo
1:41 pm - 3:15 pmTYS-AUS
2h 34mnonstop
$184Allegiant Air
Find Deal
Sat, Nov 29 - Thu, Dec 11
Frontier Logo
6:45 am - 7:10 pmAUS-TYS
11h 25m1 stop
Frontier Logo
4:52 pm - 12:14 amTYS-AUS
8h 22m1 stop
$210Frontier
Find Deal
Fri, Nov 28 - Thu, Dec 11
Frontier Logo
6:45 am - 3:53 pmAUS-TYS
8h 08m1 stop
Frontier Logo
4:52 pm - 12:14 amTYS-AUS
8h 22m1 stop
$230Frontier
Find Deal
Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
7:00 am - 1:17 pmAUS-TYS
5h 17m1 stop
United Airlines Logo
7:05 am - 12:59 pmTYS-AUS
6h 54m1 stop
$259United Airlines
Find Deal

Everything you should know

Top airlines
Allegiant Air
Cheapest • from $153 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to Knoxville
Watch video
Watch video
Watch video
Watch video
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 12% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
4 days a week
There are direct flights from Austin to Knoxville 4 days a week: Mon, Wed, Fri, Sat.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest round-trip
$153
Overall average: $340
Allegiant Air
Mon 12/29Mon 1/5
AUS - TYS • Non-stop
Cheapest one-way
$81
Typical prices: $88-$199
Frontier
Thu 11/20
AUS - TYS • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
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.

Find cheap flights to Knoxville
Find cheap flights to Knoxville

Planning a trip from Austin to Knoxville? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 Saturday is the most expensive. Flying from Knoxville back to Austin, the best deals are generally found on Tuesday, with Monday 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 October, where tickets cost $256 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $340 and $323 respectively.

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 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$81
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 12% 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.

  • 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 $81 for a one-way ticket and $153 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?

    American Airlines, and Delta offer 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, Wednesday, Friday, and Sunday.

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

    The two airlines most popular with KAYAK users for flights from Austin to Knoxville are Delta and United Airlines. With an average price for the route of $343 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $374 and an overall rating of 7.4.

  • 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 $102 or less one-way and $222 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

Wednesday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Saturday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Austin Bergstrom

Monday

Allegiant Air

Allegiant Air

Wednesday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Saturday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 4 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
DeltaOverall score based on 8001 reviews
7.9Entertainment
7.3Food
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Overall it was good. I missed my connection but I was put on another flight.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

We didn't take off until an hour after we boarded.

The flight was fine. This survey is not. There is no option for N/A so items which don’t apply to my experience still must be rated. In those instances I give a “3” rating which ultimately skews the results.

The actual trip was fine, however, the changes made to our flights and the layovers were had to endure were awful.

Flight from Dallas to OKC was good, but my trip was interrupted due to a delayed flight from Austin to DFW, which happens all the time. I frequently miss my connection from DFW and American can never seem to make this work!

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.