TYS - AUS

$57 Find Cheap Flights from Knoxville to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Austin departing on 9/22. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Austin, 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 Knoxville to Austin, as well as popular online travel agencies
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Cheap Flights from Knoxville to Austin (TYS-AUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Austin 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 Knoxville to Austin

Fri, Sep 26 - Mon, Sep 29
Allegiant Air Logo
12:45 pm - 2:07 pmTYS-AUS
2h 22mnonstop
Allegiant Air Logo
2:57 pm - 6:10 pmAUS-TYS
2h 13mnonstop
$100Allegiant Air
Find Deal
Fri, Oct 10 - Sun, Oct 12
Allegiant Air Logo
12:45 pm - 2:13 pmTYS-AUS
2h 28mnonstop
Allegiant Air Logo
6:41 pm - 9:50 pmAUS-TYS
2h 09mnonstop
$133Allegiant Air
Find Deal
Sat, Aug 23 - Mon, Aug 25
 Logo
4:41 pm - 12:59 amTYS-AUS
9h 18m1 stop
 Logo
10:22 am - 1:39 pmAUS-TYS
2h 17mnonstop
Thu, Sep 25 - Mon, Sep 29
 Logo
12:08 pm - 11:02 pmTYS-AUS
11h 54m1 stop
 Logo
2:57 pm - 6:10 pmAUS-TYS
2h 13mnonstop
Sat, Aug 30 - Sun, Aug 31
American Airlines Logo
11:15 am - 5:00 pmTYS-AUS
6h 45m1 stop
American Airlines Logo
4:40 pm - 11:53 pmAUS-TYS
6h 13m1 stop
$199American Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
4:37 pm - 9:06 pmTYS-AUS
5h 29m1 stop
American Airlines Logo
4:35 pm - 11:03 pmAUS-TYS
5h 28m1 stop
$249American Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 17
Delta Logo
5:45 am - 10:42 amTYS-AUS
5h 57m1 stop
Delta Logo
5:35 am - 11:03 amAUS-TYS
4h 28m1 stop
$259Delta
Find Deal
Thu, Dec 11 - Sun, Dec 14
Delta Logo
7:30 am - 3:01 pmTYS-AUS
8h 31m1 stop
Delta Logo
5:40 am - 11:05 amAUS-TYS
4h 25m1 stop
$274Delta
Find Deal
Thu, Aug 21 - Mon, Aug 25
United Airlines Logo
7:00 am - 3:23 pmTYS-AUS
9h 23m2 stops
United Airlines Logo
12:10 pm - 7:53 pmAUS-TYS
6h 43m1 stop
$324United Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
United Airlines Logo
5:00 pm - 10:59 pmTYS-AUS
6h 59m1 stop
United Airlines Logo
7:05 am - 1:41 pmAUS-TYS
5h 36m1 stop
$329United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Knoxville to Austin flights

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

Find cheap flights to Austin
Find cheap flights to Austin

Planning a trip from Knoxville to Austin? 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 Knoxville to Austin?

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

Your flight ticket price will generally be cheaper if you fly to Austin on a Wednesday and more expensive on a Sunday. On your return trip to Knoxville, you should consider flying back on a Sunday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Austin, 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 Knoxville to Austin is September, where tickets cost $228 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $383 and $353 respectively.

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

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 $293, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Austin, 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 Knoxville to Austin, you should book around 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$57
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 10% increase in price.
Flight from Knoxville to Austin

When to book flights from Knoxville to Austin

Are your dates flexible? Find out the best times to travel from Knoxville to Austin 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 Knoxville to Austin

  • What seat selection options are available on American Airlines flights from Knoxville to Austin?

    Main Cabin seats are standard economy seats on American Airlines flights from Knoxville to Austin that come with your ticket purchase and include basic amenities like a reclining seat, overhead bin storage, and in-flight entertainment. Main Cabin Extra seats are economy seats with extra legroom and priority boarding. Preferred seats are standard Main Cabin seats that are located in more desirable areas of the plane.

  • How do I go from Austin Bergstrom Airport (AUS) to the city center?

    Capital Metro operates a bus from Austin Airport's Lower Level to Downtown Austin. This is an affordable option and can take around 30 minutes depending on traffic and route. Services like Uber and Lyft are available to transport passengers from the airport to the city center. This may be a more convenient option, but can be more expensive than the bus. Several car rental companies operate at AUS, and travelers can rent a car to drive to the city center at their own pace.

  • What is the luggage allowance on United Airlines flights from Knoxville to Austin?

    The luggage allowance on United Airlines flights from Knoxville to Austin can vary depending on the ticket fare. The maximum exterior dimension of standard checked baggage is 62 inches and the maximum weight can range from 50 lbs to 70 lbs depending on the fare class. Additional checked baggage fees apply for any bags that exceed the size or weight limit, or for any additional bags beyond the allowed number.

  • What services does Delta offer Economy class passengers on flights from Knoxville to Austin?

    Passengers can stream movies, TV shows, and other entertainment options directly to their personal devices using Delta's onboard Wi-Fi network on flights from Knoxville to Austin. Economy passengers can also enjoy complimentary snacks and non-alcoholic beverages during their flight, and the airline offers a pay-per-view entertainment option if you wish to enhance their in-flight entertainment experience.

  • What is the cheapest flight from Knoxville to Austin?

    In the last 3 days, the lowest price for a flight from Knoxville to Austin was $57 for a one-way ticket and $100 for a round-trip.

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

    A passport is not required to fly from Knoxville to Austin.

  • Which airports will I be using when flying from Knoxville to Austin?

    Knoxville airport is called Knoxville McGhee Tyson and the only airport in Austin is Austin Bergstrom.

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

    American Airlines, and Delta offer inflight Wi-Fi service on the Knoxville to Austin flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Knoxville to Austin are Delta and United Airlines. With an average price for the route of $312 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $390 and an overall rating of 7.4.

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

    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 Knoxville to Austin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Knoxville 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 Knoxville to Austin?

    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 Austin with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and AUS 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 Knoxville to Austin?

    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 Austin from Knoxville 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 Knoxville to Austin

  • Looking for a cheap flight? 25% of our users found flights on this route for $48 or less one-way and $110 or less round-trip.
  • Passengers who choose connecting flights from Knoxville (TYS) to Austin (AUS) can expect layovers in various cities depending on the airline. Some common layovers include Dallas (DFW), Atlanta (ATL), Charlotte (CLT), Denver (DEN), and Washington (IAD).
  • Delta provides wheelchair assistance to passengers who require mobility assistance throughout their travels, including for flights from Knoxville to Austin. This service is available at no charge, and passengers can request wheelchair assistance ahead of time or at the airport.
  • United Airlines offers flights from Knoxville to Austin and has pledged to power 100% of their flights with SAF by 2050, which is expected to reduce their greenhouse gas emissions by up to 80% compared to traditional jet fuel.
  • American Airlines guarantees that children will be seated next to their parents or guardians on flights from Knoxville to Austin at no charge. The airline offers several family-oriented services for parents and children, including kid-friendly food and in-flight entertainment for children.
  • McGhee Tyson Airport (TYS) has one passenger terminal building that handles all activities, including departures for flights to Austin. The terminal building is equipped with a number of information desks that may help travelers with any queries or issues they may have, and passengers can make any confirmations related to flights from TYS to Austin.

Prefer to fly direct from Knoxville to Austin?

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

Direct departures

Knoxville McGhee Tyson to Austin Bergstrom

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Austin Bergstrom to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 4 airlines serving from Knoxville to Austin

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Austin. 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 Knoxville to Austin? 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Comfort
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

Delayed and took off even later than the scheduled delay time

8.0 ExcellentAnonymous, Jul 2025DTW - SEA
Read more Delta reviews

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

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

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

Pretty bad gate mgmt upon arrival. No open gates and we had to wait at midnight. Shouldn’t be a surprise that an aircraft is coming in.

Comfortable plane ride however on delays disappointment no real details as to why the delays when other flights are leaving the airport

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

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.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

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

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