$100 Cheap Flights from Austin (AUS) to Knoxville (TYS)

View $100 flight on Thu, Sep 4, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)

Cheap Flights from Austin to Knoxville (AUS-TYS)

Prices were available within the past 7 days and start at $100 for one-way flights and $194 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 5 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$194 Roundtrip, found 2 days ago
$194
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 5 from Austin to Knoxville, returning Sat, Sep 6, priced at $194 found 2 days ago
American Airlines
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $199 found 4 hours ago
United
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$202 Roundtrip, found 4 hours ago
$202
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $202 found 4 hours ago
United
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $204 found 4 hours ago
Frontier Airlines
Thu, Sep 11 - Wed, Sep 24
AUS
Austin
TYS
Knoxville
$217 Roundtrip, found 6 days ago
$217
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Sep 11 from Austin to Knoxville, returning Wed, Sep 24, priced at $217 found 6 days ago
American Airlines
Wed, Sep 3 - Wed, Sep 10
AUS
Austin
TYS
Knoxville
$228 Roundtrip, found 4 days ago
$228
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 3 from Austin to Knoxville, returning Wed, Sep 10, priced at $228 found 4 days ago
Delta
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$231 Roundtrip, found 4 hours ago
$231
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $231 found 4 hours ago
American Airlines
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$237 Roundtrip, found 4 hours ago
$237
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $237 found 4 hours ago
United
Wed, Sep 3 - Sat, Sep 6
AUS
Austin
TYS
Knoxville
$241 Roundtrip, found 4 hours ago
$241
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 3 from Austin to Knoxville, returning Sat, Sep 6, priced at $241 found 4 hours ago
Southwest Airlines
Wed, Mar 25 - Sat, Mar 28
AUS
Austin
TYS
Knoxville
$274 Roundtrip, just found
$274
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Mar 25 from Austin to Knoxville, returning Sat, Mar 28, priced at $274 just found

Find the cheapest month to fly from Austin (AUS) to Knoxville (TYS)

April is typically the cheapest month to fly

From $189 - $407 per traveler.

Graph displaying average flight prices per month

Alternative airports near Knoxville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McGhee Tyson TYS. Cheapest and Closest option available. Average driving time to city center is 22 minutes. Flights from $254
TYS
McGhee Tyson
CheapestClosest
Average driving time to city center22 min
Flights from $254
Flights from Austin (AUS) to Knoxville (TYS)
Origin airport
Austin-Bergstrom Intl.
Destination airport
McGhee Tyson
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$194
Distance
880 mi

Austin to Knoxville Flights

The cheapest times to fly from Austin to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Knoxville are during the month of September. You can find some of the cheapest flights from Austin to Knoxville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Knoxville

Sunday is one of the best days to book for cheap flights from Austin to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $100 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS) cost?
Grab a cheap one-way flight from $100 or cheap return flight from $194 from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)?
The cheapest month to fly from AUS to TYS is September, when demand is low. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)?
To find the cheapest airline flying from AUS to TYS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)?
You'll need to take a flight with a layover when traveling from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from AUS to TYS?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)?
Select a flight from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS) last-minute?
Waiting until just before your departure to book a flight from AUS to TYS often results in higher prices. While you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of scoring a bargain.
Is it cheaper to book an AUS to TYS flight and hotel package?
Compared with arranging flights and hotels separately, booking an AUS to TYS flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place takes the hassle out of travel planning. Just secure your flights and select from our wide range of hotels, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to McGhee Tyson Airport (TYS)?
You can usually reschedule or cancel your AUS to TYS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.