Cheap Flights from Knoxville (TYS) to Las Vegas (LAS)

Travellers and cabin class

Compare Knoxville to Las Vegas Harry Reid International flight deals

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

Book the best Las Vegas Harry Reid International fare with no extra fees

Flight deals from Knoxville to Las Vegas Harry Reid International

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

Find the cheapest month to fly from Knoxville to Las Vegas Harry Reid International

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

Direct flights from Knoxville to Las Vegas Harry Reid International

Knoxville to Las Vegas Harry Reid International: Alternative routes

Compare routes from Knoxville to Las Vegas below. You may find an airport to fly into that's cheaper, faster, or easier than Las Vegas Harry Reid International.

Knoxville to Las Vegas: Flight information

The things to know before you go.
Cheapest flight found$217
Cheapest month to flyAugust
Average flight time4 hrs, 17 mins
Most popular airlineAllegiant Air
Average flights per week3

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

The best price we found for a return flight from Knoxville to Las Vegas Harry Reid International is $217. 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 17 minutes is the average flight time from Knoxville to Las Vegas Harry Reid International.
Allegiant Air flies direct from Knoxville to Las Vegas Harry Reid International.
As of May 2025, there are 3 flights per week flying from Knoxville to Las Vegas Harry Reid International.
The cheapest month to fly from Knoxville to Las Vegas Harry Reid International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Las Vegas Harry Reid International Airport on Monday, 4 August 2025.
Yes – the average flight time is 4 hours and 17 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 Harry Reid International 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.
Currently, Allegiant Air offers the cheapest flight tickets to Las Vegas Harry Reid International.

Flying from McGhee Tyson Airport (TYS) to Harry Reid Airport (formerly McCarran Airport) (LAS): what you need to know

  • The average duration of a direct flight from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport) is 4 hours 20 minutes.

  • Las Vegas is three hours behind Knoxville and observes the UTC-7 timezone.

  • Arrive at the airport on time so you don't miss your TYS to LAS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • During popular months such as July, you'll want to get to the airport earlier than usual. Arrive two hours before domestic departures and four hours ahead of international flights when you fly during peak periods in general.

  • Getting to Las Vegas (and then seeing more of United States!) is a breeze with Allegiant Air. This popular carrier offers direct flights from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport).

  • Allegiant Air is the airline most travellers choose to fly with on this route.

  • Allegiant Air is the most punctual carrier that offers TYS to LAS flights, with 76.47% of its services arriving as scheduled.

How to find the cheapest flights from McGhee Tyson Airport (TYS) to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • $101 is the lowest price for a one-way McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport) flight. Return flights start at $217. These prices can change based on availability.

  • Book eight months before your departure date. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from TYS to LAS.

  • Schedule your trip for July. That's the cheapest month for flights from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport). If you're flexible with your dates, use the 'Whole month' tool to see the cheapest price across each month.

  • Never miss a deal on cheap flights from TYS to LAS by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Lock in the perfect flight for you by using the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport), use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about McGhee Tyson Airport (TYS)

  • The address for TYS is 2055 Alcoa Highway.

  • 78.98% of flights departing from McGhee Tyson Airport arrive at their destination on schedule.

  • McGhee Tyson Airport is around 23 kilometres from central Knoxville. If you're catching a cab, ride-sharing or driving from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.

  • Need a handy hotel near TYS? If you've booked an early flight from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport), these accommodation options will have you sleeping moments from your check-in counter:

Arriving at Harry Reid Airport (formerly McCarran Airport) (LAS)

Getting from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas

  • The address for LAS is 5757 Wayne Newton Boulevard.

  • Harry Reid Airport (formerly McCarran Airport) is roughly 19 kilometres from the centre of Las Vegas. The drive time takes around 15 minutes.

  • Getting there on public transport will take you roughly 1 hour.

When to fly to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • October is the most popular month for flights from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport). For smaller crowds, travel to Las Vegas in May.

  • Lock in your flight from McGhee Tyson Airport to Harry Reid Airport (formerly McCarran Airport) for July if you'd like to explore Las Vegas during its warmest month. You can expect temperatures of between 23ºC (73ºF) and 42ºC (108ºF).

  • January sees average temperatures of between -1ºC (30ºF) and 13ºC (55ºF). Look for cheap tickets from TYS to LAS sometime then if you want to travel when it's cooler.

Explore more of United States

  • Las Vegas has its own special appeal, but there are so many other corners of United States waiting to be discovered. Around 370 kilometres south-west of Las Vegas, a visit to Los Angeles will keep you on the move. Check out popular attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 418 kilometres south-east of Las Vegas, Phoenix is another favourite 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.