LAS - TYS

$80 Find Cheap Flights from Las Vegas to Knoxville

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 4/17. 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 Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Knoxville, 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 Las Vegas to Knoxville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$168
Typical prices: $378-$227
Allegiant Air
Fri 5/1Fri 5/15
LAS - TYS • 1 stop
Cheapest non-stop
$175
Typical prices: $248-$165
Allegiant Air
Mon 5/11Fri 5/15
LAS - TYS • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 3h 47m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $168 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $355 (round-trip)
Shortest trip • 6h 15m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Knoxville!
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

Fri, May 1 - Fri, May 15
Allegiant Air Logo
11:44 pm - 6:03 pm
LAS
-
TYS
15h 19m
1 stop
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
$168Allegiant Air
Mon, May 11 - Fri, May 15
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
$175Allegiant Air
Mon, May 11 - Fri, May 15
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
$184Allegiant Air
Tue, Apr 21 - Wed, Apr 29
American Airlines Logo
12:59 am - 10:26 am
LAS
-
TYS
6h 27m
1 stop
American Airlines Logo
4:09 pm - 9:00 pm
TYS
-
LAS
7h 51m
1 stop
$195American Airlines
Thu, Sep 24 - Mon, Sep 28
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
$209Allegiant Air
Fri, Sep 4 - Mon, Sep 7
Allegiant Air Logo
2:00 pm - 8:54 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
1:17 pm - 2:31 pm
TYS
-
LAS
4h 14mnonstop
$218Allegiant Air
Mon, May 11 - Fri, May 15
Multiple Airlines Logo
8:00 am - 10:24 pm
LAS
-
TYS
11h 24m
1 stop
Multiple Airlines Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
$223Multiple Airlines
Fri, May 8 - Sat, May 9
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
Allegiant Air Logo
1:59 pm - 11:44 pm
TYS
-
LAS
12h 45m
1 stop
$240Allegiant Air
Fri, May 1 - Fri, May 15
Multiple Airlines Logo
11:44 pm - 6:03 pm
LAS
-
TYS
15h 19m
1 stop
Multiple Airlines Logo
8:32 pm - 11:35 am
TYS
-
LAS
18h 03m
1 stop
$245Multiple Airlines
Sun, May 10 - Fri, May 15
Multiple Airlines Logo
12:29 am - 9:48 pm
LAS
-
TYS
18h 19m
2 stops
Multiple Airlines Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
$248Multiple Airlines
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 May.

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 Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Knoxville, Monday is the cheapest day to fly and Thursday 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 November, where the average cost of round-trip tickets is $494 and $353 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 $476, 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 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$80
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 4% 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.

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

    In the last 3 days, the lowest price for a flight from Las Vegas to Knoxville was $80 for a one-way ticket and $168 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 $355 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 $414 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 $195 or less one-way and $285 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

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Las Vegas Harry Reid Intl

Monday

Allegiant Air

Allegiant Air

Friday

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.
7.9
DeltaOverall score based on 8358 reviews
8.1Boarding
8.5Crew
7.9Comfort
7.2Food
7.8Entertainment
Airline reviews

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

8.0 ExcellentLorna, Mar 2026
LAX - LIH
Read more Delta reviews

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

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

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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.

Flight was on-time, boarding was flawless and the crew was friendly.

The staff are very, very professional. It's what flying should feel like.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

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

Information on your arrival and departure airports