TYS - LAS

$82 Find Cheap Flights from Knoxville to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Las Vegas departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Las Vegas

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Las Vegas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Las Vegas, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$201
Overall average: $346
Allegiant Air
Mon 4/13Fri 4/17
TYS - LAS • Non-stop
Cheapest one-way
$82
Typical prices: $97-$455
Allegiant Air
Mon 4/20
TYS - LAS • Non-stop
Nonstop flights
2 days a week
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 4h 30m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $201 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $373 (round-trip)
Shortest trip • 6h 47m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Las Vegas!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Las Vegas

Mon, Apr 13 - Fri, Apr 17
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$201Allegiant Air
Mon, Apr 20 - Fri, Apr 24
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$203Allegiant Air
Mon, Aug 17 - Mon, Aug 24
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
Allegiant Air Logo
2:43 pm - 9:41 pm
LAS
-
TYS
3h 58mnonstop
$205Allegiant Air
Fri, Apr 3 - Fri, Apr 17
Allegiant Air Logo
2:19 pm - 3:50 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$210Allegiant Air
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
4:20 pm - 3:35 pm
TYS
-
LAS
26h 15m
1 stop
Multiple Airlines Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$214Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
4:20 pm - 3:35 pm
TYS
-
LAS
26h 15m
1 stop
Multiple Airlines Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$222Multiple Airlines
Mon, Jun 29 - Fri, Jul 3
Allegiant Air Logo
2:46 pm - 3:54 pm
TYS
-
LAS
4h 08mnonstop
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
$228Allegiant Air
Fri, Apr 3 - Fri, Apr 17
Allegiant Air Logo
2:19 pm - 3:50 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$230Allegiant Air
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
8:00 am - 7:58 am
TYS
-
LAS
26h 58m
1 stop
Multiple Airlines Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$232Multiple Airlines
Fri, Apr 3 - Fri, Apr 17
Multiple Airlines Logo
4:20 pm - 9:02 pm
TYS
-
LAS
31h 42m
2 stops
Multiple Airlines Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$239Multiple Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Las Vegas flights

Get data-powered insights and trends into flights from Knoxville to Las Vegas to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to Las Vegas?

The average price of all round-trip flights from Knoxville to Las Vegas clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Las Vegas on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Knoxville to Las Vegas. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Knoxville to Las Vegas?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Las Vegas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Las Vegas is January, where tickets cost $250 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $384 and $383 respectively.

Can I save money by flying with a layover from Knoxville to Las Vegas?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $368 on average.

How far in advance should I book a flight from Knoxville to Las Vegas?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Las Vegas, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Knoxville to Las Vegas, you should book around 5 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$82
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Knoxville to Las Vegas

When to book flights from Knoxville to Las Vegas

Are your dates flexible? Find out the best times to travel from Knoxville to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Las Vegas

  • How early should I arrive at TYS Airport?

    Passengers are advised to be at the airport at least 2h before their planned departure time for domestic flights and two and a half hours before their scheduled departure time for international flights. Many airline ticket desks close 30 - 45min before departure to allow employees to assist passengers.

  • Does Knoxville airport have a lounge?

    Knoxville Airport (TYS) is a small but charming two-level terminal with various restaurants and stores. If you want to remain overnight, keep in mind that all restaurants and businesses are closed between 7 pm and 4:30 am.

  • Does McGhee Tyson Airport have long-term parking?

    If you want to leave your car at the TYS Airport, there is a long-term parking area a ten-minute walk from the terminal building. This property has covered garage parking. There are two separate economy lots located behind the Airport Hilton.

  • Is there a free shuttle from Las Vegas McCarran Airport (LAS) to nearby hotels?

    In most cases, complimentary shuttle services are only offered to registered hotel guests. The hotel, ideally located on Paradise Road near the Las Vegas Airport, provides a complimentary airport shuttle for registered guests.

  • What is the cheapest flight from Knoxville to Las Vegas?

    In the last 3 days, the lowest price for a flight from Knoxville to Las Vegas was $82 for a one-way ticket and $201 for a round-trip.

  • Do I need a passport to fly between Knoxville and Las Vegas?

    No

  • Which airlines offer Wi-Fi service onboard planes from Knoxville to Las Vegas?

    Only American Airlines offers inflight Wi-Fi service on the Knoxville to Las Vegas flight route.

  • Which aircraft models fly most regularly from Knoxville to Las Vegas?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Knoxville to Las Vegas flight route.

  • Which airline alliances offer flights from Knoxville to Las Vegas?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Knoxville and Las Vegas, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Knoxville to Las Vegas?

    You can catch a nonstop flight from Knoxville to Las Vegas on on Monday, and Friday.

  • Which is the best airline for flights from Knoxville to Las Vegas, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Las Vegas are Delta and United Airlines. With an average price for the route of $335 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $410 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and LAS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Knoxville to Las Vegas

  • Looking for a cheap flight? 25% of our users found flights on this route for $106 or less one-way and $267 or less round-trip.
  • If you want cash, ATMs are located at McGhee Tyson Airport (TYS) terminals. If you are traveling to LAS, make sure to verify your bank's charge schedule as well as your daily withdrawal limit. You should also advise your bank of your trip intentions. They can be found at Landside, Airside, and just next to Ruby Tuesday.
  • If you're exhausted following your flight, three sleep chambers within the Harry Reid International Airport (LAS) gym are available to rent by the hour. Each room has a single bed as well as access to a fridge, microwave, baggage storage, baths, lockers, and the fitness center. They may be found at Terminal 1. You will take the elevator to Level 0 from behind Baggage Claim #10.
  • The LAS airport has free Wi-Fi. If you need to check your email but don't have a device to connect to the internet, you can use any of the Embarq pay-email machines situated around the airport.
  • Nursing mothers may locate a Mamava pod after passing through the TYS Security Checkpoint and across from the food concession area. Inside the airport terminal building, the Mamava pod is a discreet and pleasant room dedicated for moms to breastfeed or pump. The self-contained transportable pod has comfy seats, a fold-down table, an electrical socket for plugging in a breast pump, and a lockable door for privacy.
  • Level 1 of the LAS terminal has a pet relief facility outside of baggage claim 1. You can go to the end of the window wall, turn right, and cross over it with your pet.
  • If you need to charge your device, there are power outlets located throughout the terminal at TYS airport as you wait for your flight. Seats with built-in power outlets and Recharge Zone workstations for charging laptops are also available in the gated sections of both terminals.

Prefer to fly direct from Knoxville to Las Vegas?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl.
Find which airlines fly direct from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport, which days they fly and book direct flights.

Direct departures

Knoxville McGhee Tyson to Las Vegas Harry Reid Intl

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Las Vegas Harry Reid Intl to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 5 airlines serving from Knoxville to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8293 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

10.0 ExcellentAnonymous, Mar 2026
ATL - DTW
Read more Delta reviews

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Everything you need to know for your flight from Knoxville to Las Vegas

Information on your arrival and departure airports