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

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Flight deals from Knoxville to Las Vegas

Looking for a cheap last-minute deal or the best return flight from Knoxville Airport to Las Vegas? If you want to travel next month, return fares start from ر.ق.‏ 898. 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 October.

Direct flights from Knoxville to Las Vegas

Knoxville to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 237
Cheapest month to flyOctober
Average flight time4 hrs, 20 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 ر.ق.‏ 503. 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 20 minutes is the average flight time from Knoxville to Las Vegas.
Allegiant Air flies direct from Knoxville to Las Vegas.
As of May 2026, there are 3 flights per week flying from Knoxville to Las Vegas.
The cheapest month to fly from Knoxville to Las Vegas is usually August.
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 ر.ق.‏ 503.
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, 24 August 2026.
Yes – the average flight time is 4 hours and 20 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 May, the average temperature is usually around 21°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.

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

  • Hop on a direct flight from Knoxville McGhee Tyson Airport to Las Vegas and you'll be in the air for an average of 3 hours 50 minutes.

  • Las Vegas is three hours behind Knoxville, where Knoxville McGhee Tyson Airport is located. Las Vegas observes the UTC-8 timezone.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This leaves you with plenty of time to board your TYS to Las Vegas flight.

  • During popular months such as June, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're travelling during a peak period in general.

  • Direct Knoxville McGhee Tyson Airport to Las Vegas tickets are available for booking. Las Vegas Harry Reid International Airport (LAS) is where you'll be landing.

  • Get on board with Allegiant Air. This well-known carrier operates direct flights from Knoxville McGhee Tyson Airport to Las Vegas.

  • Located around 18 kilometres from central Knoxville, TYS can be reached in about 25 minutes by car, depending on traffic. The journey on public transport will take roughly 50 minutes.

  • Want a leisurely start to your trip? Stay near TYS. Whether you've booked an early flight from Knoxville McGhee Tyson Airport to Las Vegas or don't want departure day to feel hectic, these hotels are worth a look:

  • When it comes to the on-time performance of Knoxville McGhee Tyson Airport, 76% of flights arrive within the expected time frame.

  • You'll find TYS at 2055 Alcoa Highway.

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

  • ر.ق.‏ 237 is the lowest price we've found for a one-way Knoxville McGhee Tyson Airport to Las Vegas flight. A round-trip ticket right now is ر.ق.‏ 503. Depending on when you book and the availability, these fares may change.

  • Get cheap flights from TYS to Las Vegas by booking two months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • Organise your trip for July. That's the best month for landing the biggest deals on Knoxville McGhee Tyson Airport to Las Vegas tickets. If you're flexible with your travel dates, use the 'Whole month' tool to access the cheapest price across every month.

  • You don't need to keep looking every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as there's an even better deal on cheap flights from TYS to Las Vegas.

  • Pick your preferred departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Knoxville McGhee Tyson Airport to Las Vegas by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Las Vegas

Las Vegas Harry Reid International Airport (LAS)

  • The distance from Las Vegas Harry Reid International Airport (LAS) to central Las Vegas is roughly 8 kilometres. It takes around 10 minutes to reach the centre driving.

  • When travelling on public transport, expect a journey time of about 25 minutes.

  • Think about booking a hotel close to LAS if you have a late flight from Knoxville McGhee Tyson Airport to Las Vegas. Settle into one of these options and avoid the hassle of a long transfer:

  • To get the lowest price, book your ride from Las Vegas Harry Reid International Airport about one week ahead of your flight from TYS to Las Vegas.

  • The address for LAS is 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • December is the quietest month for flights from Knoxville McGhee Tyson Airport to Las Vegas, while March is the busiest. Work out the ideal time to go to Las Vegas based on whether you like a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Las Vegas is July, with temperatures ranging between 23ºC and 43ºC. Book your Knoxville McGhee Tyson Airport to Las Vegas plane ticket then if this is the type of weather you enjoy.

  • If you like cooler conditions, look for a cheap ticket from TYS to Las Vegas in January when temperatures average between 0ºC and 16ºC.

More about Las Vegas

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Las Vegas right here. Check out these hotels once you've booked your flight from Knoxville McGhee Tyson Airport to Las Vegas:

  • There are so many things to see and do in this city it can be tricky to know where to start. Las Vegas Strip, Ciudad del Pecado o Las Vegas and Fountains of Bellagio are popular attractions which should feature on any good Las Vegas itinerary.

Explore more of the United States

  • Los Angeles is just one of the many cities in the United States waiting to be explored once you've seen Las Vegas. Around 370 kilometres away to the southwest, check out popular attractions including Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Around 418 kilometres southeast of Las Vegas, Phoenix is another essential stop in the United States. Experience major highlights starting with Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

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