Cheap flights from Las Vegas to Knoxville from $86

The month of January is, on average, the cheapest month to fly to Knoxville from Las Vegas, with most prices found around $239. If you aren’t able to travel during the month of January, then book flights to Knoxville from Las Vegas during September instead. Flights to Knoxville in September, while not as cheap as those in January, still average around $288.

The cheapest day to depart from Las Vegas to Knoxville is on a Thursday. Travelers who choose to depart for Knoxville on a Thursday will often find tickets for as low as $230. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Las Vegas to Knoxville for around $425.

At noon is the cheapest time of day to fly from Las Vegas to Knoxville when you can find flight prices for as low as $218. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $285.

Fly from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson for the best Las Vegas Harry Reid Intl - Knoxville McGhee Tyson flight prices

You are more likely to see cheaper flights to Knoxville from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $361 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Las Vegas for as low as $218 on momondo.

There is only 1 cabin class available to choose from on Las Vegas to Knoxville flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Las Vegas to Knoxville.

As of August 2026, prices for Las Vegas to Knoxville flights are approximately 13% cheaper when compared to flights at the same time last year.

Southwest, United Airlines, and Delta are the most popular carriers operating from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson

Allegiant Air, American Airlines and Delta are the top three most popular airlines that fly to Knoxville from Las Vegas according to our data. Allegiant Air is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 5 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $300.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 7h 41m.

Dallas (DFW) has the shortest average layover time for this route: 2h 01m.