LAS - TYS

$78 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 7/31. 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
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Everything you should know

Cheapest round-trip
$159
Typical prices: $337-$163
Allegiant Air
Fri 9/25Mon 9/28
LAS - TYS • Non-stop
Cheapest one-way
$78
Typical prices: $157-$367
Allegiant Air
Fri 7/31
LAS - TYS • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 3h 52m
Direct flights
Direct flights
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Direct flights
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Top airlines
Cheapest • from $159 (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 $366 (round-trip)
Shortest trip • 6h 17m (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 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
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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, Sep 25 - Mon, Sep 28
Allegiant Air Logo
9:04 am - 3:58 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
6:30 am - 7:44 am
TYS
-
LAS
4h 14mnonstop
$159Allegiant Air
Fri, Sep 11 - Mon, Sep 14
Allegiant Air Logo
11:19 am - 6:13 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
6:30 am - 7:44 am
TYS
-
LAS
4h 14mnonstop
$161Allegiant Air
Thu, Oct 15 - Mon, Oct 19
Allegiant Air Logo
4:09 pm - 11:01 pm
LAS
-
TYS
3h 52mnonstop
Allegiant Air Logo
9:59 pm - 11:17 pm
TYS
-
LAS
4h 18mnonstop
$203Allegiant Air
Thu, Nov 5 - Mon, Nov 9
Allegiant Air Logo
1:49 pm - 8:43 pm
LAS
-
TYS
3h 54mnonstop
Allegiant Air Logo
10:09 pm - 11:27 pm
TYS
-
LAS
4h 18mnonstop
$213Allegiant Air
Fri, Sep 11 - Sun, Sep 13
Multiple Airlines Logo
11:19 am - 6:13 pm
LAS
-
TYS
3h 54mnonstop
Multiple Airlines Logo
7:00 am - 11:36 am
TYS
-
LAS
7h 36m
1 stop
$225Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
11:19 am - 6:13 pm
LAS
-
TYS
3h 54mnonstop
Multiple Airlines Logo
8:00 am - 1:38 pm
TYS
-
LAS
8h 38m
1 stop
$228Multiple Airlines
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
6:15 am - 7:37 pm
LAS
-
TYS
10h 22m
1 stop
Frontier Logo
8:32 pm - 7:10 am
TYS
-
LAS
13h 38m
1 stop
$230Frontier
Thu, Jul 30 - Mon, Aug 3
Multiple Airlines Logo
9:24 pm - 7:36 pm
LAS
-
TYS
19h 12m
1 stop
Multiple Airlines Logo
2:47 pm - 3:54 pm
TYS
-
LAS
4h 07mnonstop
$233Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Frontier Logo
9:24 pm - 7:37 pm
LAS
-
TYS
19h 13m
1 stop
Frontier Logo
8:32 pm - 8:29 pm
TYS
-
LAS
26h 57m
1 stop
$238Frontier
Tue, Jun 9 - Wed, Jun 17
Frontier Logo
6:34 pm - 7:37 pm
LAS
-
TYS
22h 03m
1 stop
Frontier Logo
8:32 pm - 7:10 am
TYS
-
LAS
13h 38m
1 stop
$240Frontier
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 September.

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, Monday 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 April, where the average cost of round-trip tickets is $499 and $375 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.

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 $330 on average.

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 37% 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$78
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 18% 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 $78 for a one-way ticket and $159 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 $350 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 $152 or less one-way and $283 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 8445 reviews
7.2Food
7.8Entertainment
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

6.0 Goodrghinftl, May 2026
FWA - ATL
Read more Delta reviews

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

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.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

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

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

The small flights with Valet Luggage has a poor service

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

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

Information on your arrival and departure airports