AUS - TYS

$98 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 3/7. 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

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Everything you should know

Cheapest round-trip
$137
Overall average: $273
Allegiant Air
Fri 5/29Mon 6/1
AUS - TYS • Non-stop
Cheapest one-way
$102
Typical prices: $77-$375
Multiple Airlines
Sat 3/7
AUS - TYS • 1 stop
Video guide: How to find cheap flights to Knoxville
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Top airlines
Allegiant Air
Cheapest • from $137 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 21% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, May 29 - 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
$137Allegiant Air
Thu, Apr 2 - Tue, Apr 7
Multiple Airlines Logo
4:59 pm - 8:10 am
AUS
-
TYS
14h 11m
1 stop
Multiple Airlines Logo
2:56 pm - 12:24 am
TYS
-
AUS
10h 28m
1 stop
$197Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
4:59 pm - 11:39 pm
AUS
-
TYS
29h 40m
1 stop
Multiple Airlines Logo
4:25 pm - 12:24 am
TYS
-
AUS
8h 59m
1 stop
$215Multiple Airlines
Fri, May 29 - Mon, Jun 1
Allegiant Air Logo
8:26 am - 11:37 am
AUS
-
TYS
2h 11mnonstop
Allegiant Air Logo
12:55 pm - 7:09 pm
TYS
-
AUS
7h 14m
1 stop
$234Allegiant Air
Sat, Mar 7 - Thu, Mar 12
Multiple Airlines Logo
11:34 am - 8:13 pm
AUS
-
TYS
7h 39m
1 stop
Multiple Airlines Logo
11:55 am - 3:16 pm
TYS
-
AUS
28h 21m
2 stops
$235Multiple Airlines
Sun, Feb 22 - Wed, Mar 25
Multiple Airlines Logo
10:46 am - 10:34 am
AUS
-
TYS
22h 48m
1 stop
Multiple Airlines Logo
8:30 am - 5:19 pm
TYS
-
AUS
9h 49m
1 stop
$236Multiple Airlines
Sat, Mar 7 - Fri, Mar 13
Multiple Airlines Logo
11:34 am - 8:13 pm
AUS
-
TYS
7h 39m
1 stop
Multiple Airlines Logo
6:21 pm - 3:32 pm
TYS
-
AUS
22h 11m
2 stops
$238Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
7:15 am - 6:32 pm
AUS
-
TYS
34h 17m
2 stops
Multiple Airlines Logo
2:06 pm - 4:04 pm
TYS
-
AUS
26h 58m
1 stop
$248Multiple Airlines
Fri, Feb 20 - Tue, Feb 24
Multiple Airlines Logo
3:30 pm - 1:04 pm
AUS
-
TYS
20h 34m
2 stops
Multiple Airlines Logo
5:14 pm - 4:04 pm
TYS
-
AUS
23h 50m
1 stop
$250Multiple Airlines
Sun, Feb 22 - Wed, Mar 25
Multiple Airlines Logo
10:46 am - 10:34 am
AUS
-
TYS
22h 48m
1 stop
Multiple Airlines Logo
8:30 am - 11:59 pm
TYS
-
AUS
16h 29m
2 stops
$251Multiple Airlines
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 Wednesday is the most expensive. Flying from Knoxville back to Austin, the best deals are generally found on Tuesday, with Thursday 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 $225 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $323 and $310 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 $308, 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 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$102
Best time to beat the crowds but there is an average 4% 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 $102 for a one-way ticket and $137 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 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.

  • What is the most popular layover when flying to Knoxville from Austin?

    Dallas is the most popular layover city among KAYAK users traveling from Austin to Knoxville.

  • 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 $347 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 $393 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 $140 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.

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
DeltaOverall score based on 8132 reviews
7.2Food
8.1Boarding
8.5Crew
7.8Entertainment
7.9Comfort
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

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.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

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

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

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!

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Information on your arrival and departure airports