Cheap Flights from Knoxville to Las Vegas

Compare Knoxville to Las Vegas flight deals

Find the cheapest month or even day of the year to fly to Las Vegas

Book the best Las Vegas fare with no extra fees

Flight deals from Knoxville to Las Vegas

Looking for a cheap last-minute deal or the best return flight from Knoxville to Las Vegas? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Knoxville to Las Vegas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Knoxville to Las Vegas flights are currently cheapest in February.

Direct flights from Knoxville to Las Vegas

Alternative Knoxville to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Knoxville to Las Vegas? You could fly into the following airports instead.

Knoxville to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundRs18,177
Cheapest month to flyFebruary
Average flight time4 hrs, 29 mins
Most popular airlineAllegiant Air
Average flights per week3

Finding cheap flights from Knoxville to Las Vegas: Frequently asked questions

There are 4 airports in Las Vegas: North Las Vegas, Harry Reid International, Henderson Executive, and Boulder City Municipal.
The best price we found for a return flight from Knoxville to Las Vegas is Rs36,386. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 29 minutes is the average flight time from Knoxville to Las Vegas.
Allegiant Air flies direct from Knoxville to Las Vegas.
As of December 2025, there are 3 flights per week flying from Knoxville to Las Vegas.
The cheapest month to fly from Knoxville to Las Vegas is usually February.
If you're flying from Knoxville Airport, the cheapest airport near Las Vegas is Harry Reid International – which is 4.3 km away from the centre of Las Vegas. We've found flights into this airport from Rs36,386.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Las Vegas on Monday, 23 February 2026.
Yes – the average flight time is 4 hours and 29 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
In December, the average temperature is usually around 6°C. July is typically the warmest month in Las Vegas, when it usually averages around 37°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging -0°C. The rainiest month is February.
Currently, Allegiant Air offers the cheapest flight tickets to Las Vegas.

Travelling from McGhee Tyson Airport (TYS) to Las Vegas: what you need to know

  • Hop on a direct flight from McGhee Tyson Airport to Las Vegas and you'll be travelling for an average of 3 hours 55 minutes.

  • McGhee Tyson Airport is located in Knoxville. Following the UTC-7 timezone, Las Vegas is three hours behind Knoxville.

  • The most popular route is from McGhee Tyson Airport (TYS) to Harry Reid Airport (formerly McCarran Airport) (LAS). There are two weekly services between these two airports. If you want to get on your way as soon as you can, the earliest flight from TYS to LAS is the 06:30 Allegiant Air service. If you'd rather travel later, the last departure is at 16:50 with Allegiant Air.

  • Leave enough time to get on your TYS to Las Vegas flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • Longer lines at check-in and security are more likely if you're jetting off during high season, so allow some extra breathing space. A good rule for peak times? Arrive up to four hours early for international flights and at least two hours for domestic departures.

  • You can book a direct McGhee Tyson Airport to Las Vegas ticket. Start your trip at TYS and end it at Harry Reid Airport (formerly McCarran Airport) (LAS).

  • Book your seat with Allegiant Air. This airline operates direct flights from McGhee Tyson Airport to Las Vegas.

  • To reach TYS from central Knoxville, it'll take around 20 minutes if you're planning to drive. It's roughly 18 kilometres from the airport to the city centre.

  • Want an easy start to your trip? Stay near TYS. Whether you're taking an early flight from McGhee Tyson Airport to Las Vegas or just don't like being rushed, these hotels put convenience first:

  • 78.98% of flights that take off from McGhee Tyson Airport land at their destination on time.

  • TYS is located at 2055 Alcoa Highway.

How to find the cheapest flights from McGhee Tyson Airport (TYS) to Las Vegas

  • Rs18,130 is the cheapest price we've found for a one-way McGhee Tyson Airport to Las Vegas flight. A return flight ticket right now is Rs36,294. Depending on when you want to go and the availability, these fares can change.

  • Lock in cheap flights from TYS to Las Vegas by booking three months ahead. Based on our research, that's the sweet spot for landing a bargain.

  • The best month for scoring cheap McGhee Tyson Airport to Las Vegas tickets is July. Use the 'Whole month' tool to compare flight prices, then choose the dates with the lowest fares.

  • Picking up a cheap flight from TYS to Las Vegas is easy with Price Alerts. Simply create one of these automatic notifications and we'll notify you when a new discount appears.

  • Tailor your flights with filters. Pick your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from McGhee Tyson Airport to Las Vegas.

Airports in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

  • Harry Reid Airport (formerly McCarran Airport) (LAS) is around 19 kilometres from central Las Vegas. If you're opting for a ride-share or a cab, the drive takes roughly 15 minutes.

  • If you're travelling on public transport, expect a journey time of around 1 hour.

  • Look into staying at a hotel near LAS if you have a late flight from McGhee Tyson Airport to Las Vegas. Settle into one of these accommodation options and make your arrival easier:

  • Go where the road takes you with a Harry Reid Airport (formerly McCarran Airport) rental car. Book your wheels from Dollar, Thrifty or Alamo and venture far and wide through Las Vegas and beyond.

  • Lock in the best rate by booking your vehicle from Harry Reid Airport (formerly McCarran Airport) about one week ahead of your flight from TYS to Las Vegas.

  • You'll find LAS at 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • Visit Las Vegas during the high season if you like a busy atmosphere, but remember that hotel prices tend to be higher. Alternatively, book flights from McGhee Tyson Airport to Las Vegas in the off-season when prices are cheaper and it's less crowded.

  • The warmest month in Las Vegas is July, with temperatures ranging between 23ºC and 42ºC. Lock in your McGhee Tyson Airport to Las Vegas flight ticket then if you enjoy this type of weather.

  • January sees average temperatures of between -1ºC and 13ºC. Look for a cheap ticket from TYS to Las Vegas around that time if you like cooler conditions.

More about Las Vegas

  • Once you've booked your flight from McGhee Tyson Airport to Las Vegas, choose a hotel that puts you where you want to be. Make one of these accommodation options your base for exploring Las Vegas:

  • There are so many things to explore in this city it can be hard to know where to start. Fountains of Bellagio, Las Vegas Strip and Fremont Street Experience are leading attractions which should be on any well-planned Las Vegas itinerary.

Explore more of United States

  • Las Vegas has loads to offer, but there are so many other corners of United States waiting to be discovered. About 370 kilometres south-west of Las Vegas, a visit to Los Angeles will keep you on the go. Don't miss top attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 418 kilometres south-east of Las Vegas, Phoenix is another essential stop in United States. Get a taste of what this destination has to offer at Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.