Cheap flights from Austin, TX to Knoxville, TN
Flights starting at $46. Choose between United Airlines, Allegiant Air, or Spirit Airlines to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Knoxville
Search by stops
Search by price
Search by departure date
One-way trips
Updated:
Round trips
Updated:
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The distance between Austin and Knoxville is 1419 km. The most popular airlines for this route are United Airlines, Allegiant Air, Spirit Airlines, Frontier Airlines, and JetBlue Airways. Austin and Knoxville have 106 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from Austin to Knoxville in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 07.04 - Sat 13.04
| Airline | Sun 07.04 | Mon 08.04 | Tue 09.04 | Wed 10.04 | Thu 11.04 | Fri 12.04 | Sat 13.04 |
|---|---|---|---|---|---|---|---|
| --- | 1 | --- | --- | --- | 1 | --- |
Weekly direct flights for Sun 14.04 - Sat 20.04
| Airline | Sun 14.04 | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 |
|---|---|---|---|---|---|---|---|
| --- | 1 | --- | --- | --- | 1 | --- |
Weekly direct flights for Sun 21.04 - Sat 27.04
| Airline | Sun 21.04 | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 |
|---|---|---|---|---|---|---|---|
| --- | 1 | --- | --- | --- | 1 | --- |
Weekly direct flights for Sun 28.04 - Sat 04.05
| Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
|---|---|---|---|---|---|---|---|
| --- | 1 | --- | --- | --- | 1 | --- |
Check-in for a flight from Austin to Knoxville
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| United Airlines | UAL | UA | Yes | No |
| Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
| Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in Knoxville
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 7°C | 0°C |
| February | 10°C | 1°C |
| March | 15°C | 4°C |
| April | 20°C | 8°C |
| May | 25°C | 13°C |
| June | 29°C | 18°C |
| July | 30°C | 20°C |
| August | 30°C | 19°C |
| September | 27°C | 16°C |
| October | 21°C | 10°C |
| November | 14°C | 4°C |
| December | 10°C | 2°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Austin
- Flights from Austin to Las Vegas
- Flights from Austin to Denver
- Flights from Austin to Orlando
- Flights from Austin to Washington, D.C.
- Flights from Austin to San Francisco
- Flights from Austin to San Diego
- Flights from Austin to Chicago
- Flights from Austin to Philadelphia
- Flights from Austin to Seattle
- Flights from Austin to Salt Lake City
- Flights from Austin to Los Angeles
- Flights from Austin to Paris
- Flights from Austin to London
- Flights from Austin to Minneapolis
- Flights from Austin to Atlanta
- Flights from Austin to New Orleans
- Flights from Austin to Cincinnati
- Flights from Austin to New York
- Flights from Austin to Detroit
- Flights from Austin to Santa Ana
Flights to Knoxville
- Flights from New York to Knoxville
- Flights from Denver to Knoxville
- Flights from Las Vegas to Knoxville
- Flights from Los Angeles to Knoxville
- Flights from Orlando to Knoxville
- Flights from Fort Lauderdale to Knoxville
- Flights from Salt Lake City to Knoxville
- Flights from Tampa to Knoxville
- Flights from San Diego to Knoxville
- Flights from Chicago to Knoxville
- Flights from San Francisco to Knoxville
- Flights from San Juan to Knoxville
- Flights from Portland to Knoxville
- Flights from Boston to Knoxville
- Flights from Sacramento to Knoxville
- Flights from Seattle to Knoxville
- Flights from Houston to Knoxville
- Flights from Washington, D.C. to Knoxville
- Flights from Phoenix to Knoxville
- Flights from West Palm Beach to Knoxville
Popular routes
- Flights from London to New York
- Flights from Tenerife to London
- Flights from New York to Tel Aviv
- Flights from Los Angeles to Cartagena
- Flights from San Francisco to Cork
- Flights from Ciudad Juárez to Veracruz
- Flights from Udaipur to Mumbai
- Flights from San Jose to New Orleans
- Flights from Kraków to Dublin
- Flights from Lisbon to Split
- Flights from Brussels to Naples
- Flights from Los Angeles to Las Vegas
- Flights from Minneapolis to Boise
Airports near Austin
- George Bush Intercontinental
- Austin–Bergstrom International
- San Antonio International
- William P. Hobby
- Killeen–Fort Hood Regional
- Easterwood
- Waco Regional
- Victoria Regional