Cheap flights from San Antonio to Knoxville

Flights overview

Useful information for finding cheap flights from San Antonio to Knoxville and booking your next trip
Cheapest round-trip flights $205
Frontier 1 stop 23 hr Sun, May 31 — Mon, Jun 8
The cheapest round-trip flight from San Antonio to Knoxville is currently $205
Cheapest one-way flight $101
Frontier 1 stop 23 hr Tue, Jul 14
The cheapest one-way flight from San Antonio to Knoxville is currently $101
Last-minute weekend getaway $332
United 1 stop 6 hr Sat, May 9 — Mon, May 11
The cheapest last-minute weekend getaway from San Antonio to Knoxville is currently $332
Cheapest business class flights $488
Frontier 1 stop 23 hr Thu, Jul 23 — Wed, Jul 29
The cheapest business class round-trip flight from San Antonio to Knoxville is currently $488
Fastest flight 3 hr 55 min The fastest flight with stops from San Antonio to Knoxville takes 3 hr 55 min
Nonstop flights None There are no direct flights on this route.

When is the cheapest time to fly?

The cheapest month to fly from San Antonio to Knoxville is typically January. The most expensive month to fly is typically October.
January
Cheapest
Typical prices: $225–335
October
Most expensive
Typical prices: $255–450

Popular airlines from San Antonio to Knoxville

  • American
    from $257
    Typical price: $245–490
    539 weekly connecting flights
    SAT - TYS Every day
  • Delta
    from $304
    Typical price: $265–630
    291 weekly connecting flights
    SAT - TYS Every day
  • United
    from $257
    Typical price: $270–620
    196 weekly connecting flights
    SAT - TYS Every day
  • Southwest
    from $298
    Typical price: $305–475
    159 weekly connecting flights
    SAT - TYS Every day
  • Frontier
    from $205
    Typical price: $230–670
    1 weekly connecting flight
    SAT - TYS Every Thu

Popular airports near San Antonio

  • San Antonio International Airport (SAT)
    San Antonio United States 19 min 7 mi
  • Austin-Bergstrom International Airport (AUS)
    Austin United States 1 hr 21 min 72 mi
  • George Bush Intercontinental Airport (IAH)
    Houston United States 3 hr 9 min 193 mi
  • William P. Hobby Airport (HOU)
    Houston United States 3 hr 14 min 193 mi

Popular airports near Knoxville

  • McGhee Tyson Airport (TYS)
    Knoxville United States 21 min 11 mi
  • Nashville International Airport (BNA)
    Nashville United States 2 hr 38 min 154 mi
  • Hartsfield-Jackson Atlanta International Airport (ATL)
    Atlanta United States 3 hr 23 min 163 mi
  • Chattanooga Metropolitan Airport (CHA)
    Chattanooga United States 1 hr 39 min 96 mi

Frequently asked questions about flying from San Antonio to Knoxville

The cheapest flights from San Antonio to Knoxville are usually in January. Typical ticket prices in January range from $225 to $335.
The cheapest round-trip flight from San Antonio to Knoxville recently found on Google Flights was with Frontier from $205. The cheapest one-way flight was with Frontier from $101.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest American flight from San Antonio to Knoxville is $257, flying from May 24 to Jun 2.
  • The cheapest Delta flight from San Antonio to Knoxville is $304, flying from Jul 23 to Jul 29.
  • The cheapest United flight from San Antonio to Knoxville is $257, flying from May 28 to Jun 3.
  • The cheapest Southwest flight from San Antonio to Knoxville is $298, flying from Jul 13 to Jul 21.
  • The cheapest Frontier flight from San Antonio to Knoxville is $205, flying from Jun 7 to Jun 15.
The cheapest round-trip flight from San Antonio to Knoxville starts at $205 from Sun, May 31 to Mon, Jun 8. The cheapest one-way flight starts at $101 and departs on Tue, Jul 14.
3 hr 55 min is the shortest flight time from San Antonio to Knoxville.
A common time to visit Knoxville is May–Oct, when the weather is warm and relatively dry. Summers (Jun–Aug) are warm to hot, and winters (Dec–Feb) are cool. Rain is possible year-round. The annual Big Ears Music Festival (Mar) features music, film and visual art. The Rhythm N' Blooms Music Festival sees performances in the city's historic district. The Dogwood Arts Festival (Apr) brings arts and crafts booths, live music and food stalls to Market Square.
It's easy to use Google Flights to find the cheapest days to fly from San Antonio to Knoxville.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from San Antonio to Knoxville really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Antonio to Knoxville.

In terms of flights, American is the most popular. American offers 539 connecting flights per week. American flies from San Antonio International Airport (SAT) to McGhee Tyson Airport (TYS) .

Other popular airlines flying from San Antonio to Knoxville are:
  • Delta offers 291 connecting flights per week. Delta flies from San Antonio International Airport (SAT) to McGhee Tyson Airport (TYS) .
  • United offers 196 connecting flights per week. United flies from San Antonio International Airport (SAT) to McGhee Tyson Airport (TYS) .
  • Southwest offers 159 connecting flights per week. Southwest flies from San Antonio International Airport (SAT) to McGhee Tyson Airport (TYS) .
  • Frontier offers 1 connecting flights per week. Frontier flies from San Antonio International Airport (SAT) to McGhee Tyson Airport (TYS) .
The number of connecting flights refers to distinct flights with at least one stop between San Antonio and Knoxville.
The cheapest round-trip flight from San Antonio to Knoxville recently found on Google Flights was with Frontier from $205. The cheapest one-way flight was with Frontier from $101.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest American flight from San Antonio to Knoxville is $257, flying from May 24 to Jun 2.
  • The cheapest Delta flight from San Antonio to Knoxville is $304, flying from Jul 23 to Jul 29.
  • The cheapest United flight from San Antonio to Knoxville is $257, flying from May 28 to Jun 3.
  • The cheapest Southwest flight from San Antonio to Knoxville is $298, flying from Jul 13 to Jul 21.
  • The cheapest Frontier flight from San Antonio to Knoxville is $205, flying from Jun 7 to Jun 15.
No airline flies direct from San Antonio to Knoxville.
  • There are 539 American connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 291 Delta connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 196 United connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 159 Southwest connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 1 Frontier connecting flights from San Antonio to Knoxville per week. Flights are available on Thursday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between San Antonio and Knoxville at price $332 is offered by United from Sat, May 9 to Mon, May 11.
No airline flies direct from San Antonio to Knoxville.
  • There are 539 American connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 291 Delta connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 196 United connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 159 Southwest connecting flights from San Antonio to Knoxville per week. Flights are available every day.
  • There are 1 Frontier connecting flights from San Antonio to Knoxville per week. Flights are available on Thursday.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are no direct flights from San Antonio to Knoxville.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Antonio to Knoxville, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between San Antonio and Knoxville start at $488 from Thu, Jul 23 to Wed, Jul 29 with Frontier.
The cheapest economy class round-trip flights between San Antonio and Knoxville start at $205 from Sun, May 31 to Mon, Jun 8.
To book business class trips from San Antonio to Knoxville, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between San Antonio and Knoxville starts at $332 from Sat, May 9 to Mon, May 11 with United.
The cheapest last-minute deal between San Antonio and Knoxville at price $332 is offered by United from Sat, May 9 to Mon, May 11.
To find last-minute flight deals from San Antonio to Knoxville, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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