TYS - LAS

$72 Find Cheap Flights from Knoxville to Las Vegas - Compare and Save

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 11/2. 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.
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Everything you should know

Cheapest round-trip
$186
Typical prices: $288-$482
Allegiant Air
Sun 11/8Fri 11/13
TYS - LAS • Non-stop
Cheapest one-way
$72
Typical prices: $171-$383
Allegiant Air
Mon 11/2
TYS - LAS • Non-stop
Nonstop flights
Mon, Thu, Fri, Sun
You can fly direct with Allegiant Air. Average duration is 4h 09m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $371 (round-trip)
Shortest trip • 6h 52m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
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Good to know
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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

Sun, Nov 8 - Fri, Nov 13
Allegiant Air Logo
8:43 pm - 9:58 pm-
4h 15mnonstop
Allegiant Air Logo
3:37 pm - 10:35 pm-
3h 58mnonstop
$186Allegiant Air
Mon, Oct 26 - Mon, Nov 2
Allegiant Air Logo
9:42 pm - 11:00 pm-
4h 18mnonstop
Allegiant Air Logo
2:00 pm - 8:52 pm-
3h 52mnonstop
$191Allegiant Air
Mon, Nov 2 - Sat, Nov 7
Multiple Airlines Logo
9:42 pm - 11:00 pm-
4h 18mnonstop
Multiple Airlines Logo
9:15 pm - 1:19 pm-
13h 04m
$200Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
Multiple Airlines Logo
9:29 pm - 10:44 pm-
4h 15mnonstop
Multiple Airlines Logo
9:15 pm - 1:19 pm-
13h 04m
$205Multiple Airlines
Sat, Sep 19 - Sat, Sep 26
Delta Logo
5:45 pm - 9:08 pm-
6h 23m
Delta Logo
10:01 pm - 9:29 am-
8h 28m
$319Delta
Mon, Aug 24 - Thu, Aug 27
Delta Logo
4:38 pm - 7:46 pm-
6h 08m
Delta Logo
8:16 am - 5:19 pm-
6h 03m
$319Delta
Wed, Aug 26 - Sat, Aug 29
United Airlines Logo
1:53 pm - 6:39 pm-
7h 46m
United Airlines Logo
5:20 am - 3:46 pm-
7h 26m
$319United Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
6:02 pm - 10:52 pm-
7h 50m
United Airlines Logo
7:15 am - 4:58 pm-
6h 43m
$319United Airlines
Mon, Nov 2 - Mon, Nov 9
Southwest Logo
7:25 pm - 12:30 am-
8h 05m
Southwest Logo
5:05 am - 3:00 pm-
6h 55m
$319Southwest
Sat, Dec 12 - Mon, Dec 14
Southwest Logo
2:50 pm - 8:05 pm-
8h 15m
Southwest Logo
1:15 am - 12:15 pm-
8h 00m
$324Southwest
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.

How much is a round-trip flight from Knoxville to Las Vegas?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Las Vegas departing in November.

Flight prices are below average for this route right now.

Flights to Las Vegas from Knoxville usually cost between $200 and $375 in November.
The lowest price found in the past 5 days was $186 on Allegiant Air (Nov 8-Nov 13).

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, Saturday is the most expensive day to fly from Knoxville to Las Vegas. For your return ticket, we recommend flying on a Thursday 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 May, where the average cost of round-trip tickets is $467 and $432 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.

No, with an average price for the route of $397, prices are generally cheapest when you fly direct.

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 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

June

Cheapest flight

$72
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly with an average 2% 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.

  • How many flights are there between Knoxville and Las Vegas per day?

    There is a maximum of 1 nonstop flight a day that takes off from Knoxville and lands in Las Vegas, with an average flight time of 4h 09m. The most common departure time is 12:00 pm and most flights take off in the afternoon. Each week, there are 2 flights.

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

    In the last 5 days, the lowest price for a flight from Knoxville to Las Vegas was $72 for a one-way ticket and $191 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 A319 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Knoxville to Las Vegas are Southwest and Delta. With an average price for the route of $553 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $399 and an overall rating of 7.8.

  • 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 $180 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

Thursday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Las Vegas Harry Reid Intl to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Thursday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

Sunday

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.
7.8
DeltaOverall score based on 8481 reviews
7.8Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

First The flight got delayed because one of the crew members was late and we couldn’t board until she arrived. Then we all boarded and got held in the tarmac for another 30 min.

4.0 OkayJose, Jul 2026
Read more Delta reviews

First The flight got delayed because one of the crew members was late and we couldn’t board until she arrived. Then we all boarded and got held in the tarmac for another 30 min.

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

The CRJ-900 was clean but the overhead air vents were broken in our First Class row, making the cabin very hot until about 30 mins into the flight. The flight attendants were both extremely apologetic and accommodating though so that is why I rated the flight as very good. They checked on us many times and truly showed they cared. The snacks for an hour and a half flight could be better. Would be nice if there was a small plated meal over convenient store snacks. WiFi also was not working. And it would be nice if Delta had adjustable headrests on these planes.

My service light was on 15 minutes before I had to get up and find a glass of ice. And I was in business class. The meals were not for either my wife and I. She did not eat the entire 10 hour flight and I managed a bowl of soup. I was expecting much more from business with what we paid.

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

It was delayed but other than that it was great.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The head rest is too big and cannot be placed differently/removed. Causes one head to tilt forward and increase back pain

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

It was perfect! I've never flown with United before, but I definitely will in the future

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

The departure was delayed by 1 hour. The seat was comfortable and selection of entertainment is very good.

Overall all good with the flight. Appreciated the extra spacious upper storage for (vertically standing) carry on. Efficient crew, on time departure... What could it be better is the in seat power. No one was working in our row. We were counting on the in seat power to recharge our battery depleted phones. With the dependency we have in our mobile devices nowadays, the availability of in seat power is a must....

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

Seats were very uncomfortable and being charged for snacks and water.........

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

Crew was great. No entertainment and food and beverage was for purchase only, even water

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

I did not go on my trip. I requested a refund and still have not received it.

I went to lower my tray table and it was very nasty. Looks like some one had left some food on it and then just closed it up.

Mostly great. Only issue was with the WiFi. Halfway through the flight it was spotty and I was unable to work as I planned. This impacted my work products as I am traveling for business and it was an unexpected hindrance which was inconvenient. Flight here was amazing. For a 5 hour flight something more than a Biscoff would be nice but I’m just swinging at windmills I guess…

Better service. No food options, but we did get drinks and a cookie.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

I was a little disappointed of not having an android charger. Only one it was for an iPhone. I've flown American in the past and had access to one.

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

First class flight attendant was rude and lacked any customer service skills.

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

The seats are tiny and they don’t recline. The planes are dirty and very small. You have to pay for carry on and even the personal item that you’re allowed is smaller than with other airlines. Flights are usually delayed and there’s no screens or any amenities or entertainment.

The staff at the check in counter was so rude. Made you feel Incompetent

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.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The reps working at the airport counter were dumber than a second coat of paint.

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

Information on your arrival and departure airports