LAS - TYS

$97 Find Cheap Flights from Las Vegas to Knoxville - 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 Las Vegas to Knoxville departing on 8/7. 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
$196
Typical prices: $224-$389
Allegiant Air
Thu 10/1Thu 10/8
LAS - TYS • Non-stop
Cheapest one-way
$97
Typical prices: $127-$264
Allegiant Air
Fri 8/7
LAS - TYS • Non-stop
Nonstop flights
Mon, Thu, Fri, Sun
You can fly direct with Allegiant Air. Average duration is 3h 57m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $196 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Airline reviews
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Top layover airports
Cheapest • Avg $375 (round-trip)
Shortest trip • 6h 18m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 32% price drop
Most popular
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Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Knoxville 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 Las Vegas to Knoxville

Thu, Oct 1 - Thu, Oct 8
Allegiant Air Logo
4:09 pm - 11:01 pm
LAS
-
TYS
3h 52mnonstop
Allegiant Air Logo
2:01 pm - 3:19 pm
TYS
-
LAS
4h 18mnonstop
$196Allegiant Air
Fri, Aug 14 - Mon, Aug 17
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
$197Allegiant Air
Fri, Aug 7 - Mon, Aug 24
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
Allegiant Air Logo
12:54 pm - 1:58 pm
TYS
-
LAS
4h 04mnonstop
$203Allegiant Air
Thu, Sep 17 - Mon, Sep 21
Allegiant Air Logo
10:24 am - 5:18 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
6:30 am - 7:44 am
TYS
-
LAS
4h 14mnonstop
$211Allegiant Air
Fri, Aug 7 - Mon, Aug 10
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
$218Allegiant Air
Mon, Aug 24 - Fri, Aug 28
Allegiant Air Logo
2:48 pm - 9:46 pm
LAS
-
TYS
3h 58mnonstop
Allegiant Air Logo
12:54 pm - 1:58 pm
TYS
-
LAS
4h 04mnonstop
$219Allegiant Air
Mon, Aug 24 - Fri, Aug 28
Allegiant Air Logo
2:48 pm - 9:46 pm
LAS
-
TYS
3h 58mnonstop
Allegiant Air Logo
12:54 pm - 1:58 pm
TYS
-
LAS
4h 04mnonstop
$226Allegiant Air
Fri, Sep 25 - Sun, Sep 27
Allegiant Air Logo
9:04 am - 3:58 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
8:20 am - 9:34 am
TYS
-
LAS
4h 14mnonstop
$228Allegiant Air
Mon, Aug 24 - Fri, Aug 28
Allegiant Air Logo
2:48 pm - 9:46 pm
LAS
-
TYS
3h 58mnonstop
Allegiant Air Logo
12:54 pm - 1:58 pm
TYS
-
LAS
4h 04mnonstop
$233Allegiant Air
Fri, Oct 23 - Fri, Oct 30
Allegiant Air Logo
2:57 pm - 9:49 pm
LAS
-
TYS
3h 52mnonstop
Allegiant Air Logo
12:49 pm - 2:07 pm
TYS
-
LAS
4h 18mnonstop
$240Allegiant Air
Booking Insights

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

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

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

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

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

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

If you are looking for a flight deal from Las Vegas to Knoxville, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Knoxville, Wednesday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Las Vegas to Knoxville, 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 Las Vegas to Knoxville is January, where tickets cost $239 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $499 and $436 respectively.

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

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 $300, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Las Vegas to Knoxville, 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 Las Vegas to Knoxville, you should book around 4 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$97
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Las Vegas to Knoxville

When to book flights from Las Vegas to Knoxville

Are your dates flexible? Find out the best times to travel from Las Vegas to Knoxville 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 Las Vegas to Knoxville

  • What lounges are available at Las Vegas Airport (LAS)?

    For quality rest before your flight, you have access to several lounges in Terminals 1 and 3, including Centurion Lounge, United Lounge, and The Club at LAS. They are open to everyone, including Economy Class travelers. Active US Military members and their families can access the USO Lounge.

  • What family services are available at Las Vegas Airport (LAS)?

    Parents traveling with infants can access baby care facilities at Terminals 1 and 3. Private nursing rooms with a changing area, bench, and outlets with USB ports are available. LAS also has a Children’s Play Area in Terminal 1. You can nurse your baby or let your children have fun before boarding your flight.

  • Can I get wheelchair assistance from my flight at McGhee Tyson Airport (TYS)?

    Wheelchair assistance is available at McGhee Tyson Airport (TYS) for passengers with reduced mobility. We advise you to contact your airline earlier for arrangements. The facility also has ramps and elevators to guarantee smooth movement from one point to another.

  • Does Las Vegas Airport (LAS) have free Wi-Fi?

    Complimentary Wi-Fi is available in all parts of the airport for up to 4h. You can access it by connecting to the "LAS free Wi-Fi" network. If you’re disconnected, you can simply log in again to continue enjoying the free internet connection.

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

    There is a maximum of 1 nonstop flight a day that takes off from Las Vegas and lands in Knoxville, with an average flight time of 3h 57m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 2 flights.

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

    In the last 5 days, the lowest price for a flight from Las Vegas to Knoxville was $97 for a one-way ticket and $196 for a round-trip.

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

    No

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Las Vegas to Knoxville are Delta and United Airlines. With an average price for the route of $361 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $440 and an overall rating of 7.4.

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

    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 Las Vegas to Knoxville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Las Vegas 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 Las Vegas to Knoxville?

    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 Knoxville with an airline and back to Las Vegas with another airline. Booking your flights between Las Vegas and TYS 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 Las Vegas to Knoxville?

    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 Knoxville from Las Vegas 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 Las Vegas to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $211 or less one-way and $168 or less round-trip.
  • Harry Reid International Airport (LAS), formerly McCarran International Airport, has multiple dining options if you want to enjoy a meal or drink before boarding your flight. Located in Terminals 1 and 3, you will find cafes and restaurants operating with varying schedules, some open 24/7. Nathan's Famous and Jersey Mike's Subs are open 24h. The airport also has multiple vending machines.
  • You have access to five long-term parking options at Harry Reid International Airport (LAS), including Valet Parking, the Daily Parking Garage, and the Economy Parking Lots located at Terminals 1 and 3. Off-site long-term parking is also available at LAS with a shuttle for convenience. If you wish to leave your car at the airport during the period of your travel, you should try the Economy Parking Lots, which are more affordable.
  • If you’re tired of sleeping or sitting around LAS airport, you can warm up at the ZEROlevel Fitness gym. The airport fitness facility includes a group fitness studio, free weights, a large cardio floor, sauna, showers, and more. Located at Terminal 1, Landside, the facility provides a great space to burn off some energy before boarding your flight.
  • Getting to downtown Knoxville from McGhee Tyson Airport (TYS) is not that complicated because you can access multiple ground transportation options. There are multiple taxi and bus services you can access at the airport. Most local hotels also offer special shuttle services. Car rentals and ridesharing services are other available options.
  • McGhee Tyson Airport (TYS) has pet relief stations outside the Terminal on the Lower Level close to Baggage Claim 1 section. The pet relief station is grassy and perfectly equipped to create the right environment for your furry friend to relieve itself. Contact your airline for specific pet travel policies to observe at the airport.

Prefer to fly direct from Las Vegas to Knoxville?

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

Direct departures

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

Direct returns

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

Reviews of the top 4 airlines serving from Las Vegas to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Las Vegas to Knoxville. 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 Las Vegas to Knoxville? 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 8453 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.2Food
7.8Entertainment
Airline reviews

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

4.0 OkayKelli, Jun 2026
ATL - TYS
Read more Delta reviews

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

Should never have had to go to Detroit from Orlando back to Tennessee!

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Smallest leg room I've ever had on a plane.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

Long line to check bags. Curbside check-in was closed. Seat back monitor was not working.

Left on time. Arrived on time. That’s all i ask.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

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

We had to wait almost an hour for the wheelchair porter to be ready to pick up my mother. And when she arrived in Newark airport the porter was not there and she started walking with her cane and her poor mobility. When the Newark porter found her they didn't want to transfer her bags to the wheelchair for her.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

The plane was so gross and dirty. Literally saw dust layering and flowing out the grey vents. Dust was all over the air vent knobs to the point where I took my sani wipe and cleaned them down so at least it wasn't blowing my my face. Also, I upgraded and paid for Wifi and it's always so spotty. I get we are in the air, but don't charge for it if it's not going to work. I expect so much more from United. They really are giving up.

Too many canceled flights and kept my wife and I separated on alternate flights. We did not fly out of Denver. We paid a lot of money for the seats we wanted and now that money is gone and we did not sit together. That being said, the many agents were very friendly and did everything possible to help us.

It was soooo hot I was sweating even at altitude. I know you want people to sleep, but keeping it that hot is stupid!

Your app is impossible to use. I couldn't load it. Then i couldn't open it. When i finally got both those things done -with much help -then i couldn't open the app to install a credit card. The upshot was 4 flights without access to food or drink. When i first tried to download united app some company called starlier opened instead and i would up signing up for some 49 dollar a month music service which i still have not been able to cancel.

For some strange reason I was put in zone 5 for boarding even though I had paid premium price for a premium seat right behind business class. This must have been a flaw because everyone else around me in the same zone (row) had been placed in zone 3.

I contacted both carriers months beforehand to change the cabin (booked in April) but to no avail (united asked to contact Swiss since it was their equipment, Swiss told me to reach out to united). So yeah… My seat was pretty worn down, legroom on 27K was more than enough, but still economy seating so, getting to know your neighbours was easy. According to ground staff, the flight was massively overbooked- and this showed. I ordered a gluten free meal beforehand (which was honoured) but for breakfast got a bread roll and croissant 🤷🏼‍♂️ The connection itself is great. Leaving SFO late PM to arrive at ZRH in the afternoon makes it easier to get re adjusted again. However, and since I’ve flown this connection a couple of times in the past, I will rather deal with one carrier only and include a layover on the east coast.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

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.

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 liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

The flight was delayed 6 hours and we were only offered an $8 food credit. My husband stood in line to get the credit for 45 minutes and when he got close to the end of the line the computers went down.

A foot rest for short legged people and a complimentary water would be nice.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

It's very confusing because Kayak has it as American Airlines, but it was Hawaiian Airlines, but operated by Alaska Airlines. I had to go to the airport for my boarding pass because American said I didn't have any trips.

Plane was delayed for 6 hours, at first by weather, which is understandable, but was further delayed with NO given reason for 2 1/2 hours more. We had no clue when we were going to depart actually until they opened the ramp. VERY POOR to ZERO COMMUNICATION!!!

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

At least it was a short flight. Greyhound with wings.

Customer service in first class does not exist on American Airlines

Our flight got changed and/or delayed 8 times before we boarded.

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

Information on your arrival and departure airports