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Find cheap one-way flights from Austin to Knoxville starting at US$85.

Discover our range of affordable one-way and round-trip flights from Austin to Knoxville and kick-start your next adventure today!

  • One way
  • Round-trip
      • AUS16:14
        22h 2m
        1 stop
        TYS15:16
        Wed, Jan 8|Austin - Knoxville|Frontier Airlines
        US$85US$230
        63% OFF
        63% OFF
        US$230US$85

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Wed, Jan 8, arriving at Mcghee Tyson Airport.One-way Prices start from US$85 including taxes and charges.

      • AUS16:14
        22h 5m
        1 stop
        TYS15:19
        Wed, Jan 15|Austin - Knoxville|Frontier Airlines
        US$86US$230
        63% OFF
        63% OFF
        US$230US$86

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Wed, Jan 15, arriving at Mcghee Tyson Airport.One-way Prices start from US$86 including taxes and charges.

      • AUS17:30
        20h 49m
        1 stop
        TYS15:19
        Sat, Jan 25|Austin - Knoxville|Frontier Airlines
        US$87US$230
        62% OFF
        62% OFF
        US$230US$87

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Sat, Jan 25, arriving at Mcghee Tyson Airport.One-way Prices start from US$87 including taxes and charges.

      • AUS17:30
        20h 49m
        1 stop
        TYS15:19
        Sat, Jan 18|Austin - Knoxville|Frontier Airlines
        US$97
        US$97

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Sat, Jan 18, arriving at Mcghee Tyson Airport.One-way Prices start from US$97 including taxes and charges.

      • AUS05:30
        4h 53m
        1 stop
        TYS11:23
        Sat, Jan 25|Austin - Knoxville|Delta Air Lines
        US$101
        US$101

        Choose Delta Air Lines flights from Austin to Knoxville.The one-way connecting flight with Delta Air Lines departs from Austin-Bergstrom International Airport on Sat, Jan 25, arriving at Mcghee Tyson Airport.One-way Prices start from US$101 including taxes and charges.

      • AUS12:12
        26h 13m
        1 stop
        TYS15:25
        Wed, Apr 2|Austin - Knoxville|Frontier Airlines
        US$109
        US$109

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Wed, Apr 2, arriving at Mcghee Tyson Airport.One-way Prices start from US$109 including taxes and charges.

      • AUS06:10
        8h 13m
        1 stop
        TYS15:23
        Thu, Mar 6|Austin - Knoxville|Frontier Airlines
        US$126
        US$126

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Thu, Mar 6, arriving at Mcghee Tyson Airport.One-way Prices start from US$126 including taxes and charges.

      • AUS10:26
        3h 59m
        1 stop
        TYS15:25
        Sat, Jan 25|Austin - Knoxville|American Airlines
        US$130
        US$130

        Choose American Airlines flights from Austin to Knoxville.The one-way connecting flight with American Airlines departs from Austin-Bergstrom International Airport on Sat, Jan 25, arriving at Mcghee Tyson Airport.One-way Prices start from US$130 including taxes and charges.

      • AUS14:20
        4h 43m
        1 stop
        TYS20:03
        Sat, Jan 25|Austin - Knoxville|United Airlines
        US$131
        US$131

        Choose United Airlines flights from Austin to Knoxville.The one-way connecting flight with United Airlines departs from Austin-Bergstrom International Airport on Sat, Jan 25, arriving at Mcghee Tyson Airport.One-way Prices start from US$131 including taxes and charges.

      • AUS06:10
        8h 33m
        1 stop
        TYS15:43
        Sun, Mar 9|Austin - Knoxville|Frontier Airlines
        US$183
        US$183

        Choose Frontier Airlines flights from Austin to Knoxville.The one-way connecting flight with Frontier Airlines departs from Austin-Bergstrom International Airport on Sun, Mar 9, arriving at Mcghee Tyson Airport.One-way Prices start from US$183 including taxes and charges.

      • AUS01:00 pm
        3h 5m
        Nonstop
        TYS02:00 pm
        Wed, Jan 15|Austin - Knoxville|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Austin to Knoxville?

These price trend charts carefully monitor and predict how flight prices from Austin to Knoxville will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Cheapest airlines flights from Austin to Knoxville

Compare prices from various providers below to understand which option best suits your travel needs, before enjoying a comfortable journey with a trusted airline from Austin to Knoxville.

Frontier Airlines
From US$85
Delta Air Lines
From US$101
American Airlines
From US$130
United Airlines
From US$131
Southwest Airlines
From US$426

Find more flights and airlines

Find cheap flights from Austin to Knoxville by different airports

There are various non-direct routes from Austin to Knoxville which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

  • Cheapest
    Frontier Airlines
    AUS
    16:14
    22h 2m
    1 transfer
    TYS
    15:16
    Austin-Bergstrom International Airport - Mcghee Tyson Airport
    Wed, Jan 8Frontier Airlines
    US$85
  • Frontier Airlines
    AUS
    16:14
    22h 2m
    1 transfer
    TYS
    15:16
    Austin-Bergstrom International Airport - Mcghee Tyson Airport
    Wed, Jan 8Frontier Airlines
    US$85
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Austin (AUS) to Knoxville (TYS) the cheapest?

    Airlines adjust prices for flights from Austin to Knoxville based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Austin (AUS) to Knoxville (TYS) cost?

    According to Trip.com's data, the lowest price is around $455.

How to find a cheap flight from Austin to Knoxville

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Austin to Knoxville Flight Information

Cheapest nonstop flight price$84
Cheapest round-trip ticket price$363
Off-season for travelJanuary
Peak season for travelMarch
Flight distance1,421.89 km
Popular airlineAmerican Airlines

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