TYS - LAS

$89 Find Cheap Flights from Knoxville to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Las Vegas departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

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

Cheapest round-trip
$153
Typical prices: $483-$267
Allegiant Air
Mon 10/26Thu 10/29
TYS - LAS • Non-stop
Cheapest non-stop
$161
Typical prices: $224-$153
Allegiant Air
Fri 8/7Fri 8/14
TYS - LAS • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 4h 08m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $153 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $404 (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 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
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We hope you love your trip to Las Vegas!
Flight Deals
Booking Insights
Flight Deals

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

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

Recent round-trip flight deals from Knoxville to Las Vegas

Mon, Oct 26 - Thu, Oct 29
Allegiant Air Logo
9:42 pm - 11:00 pm
TYS
-
LAS
4h 18mnonstop
Allegiant Air Logo
1:45 pm - 8:39 pm
LAS
-
TYS
3h 54mnonstop
$153Allegiant Air
Fri, Aug 7 - Fri, Aug 14
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
$161Allegiant Air
Mon, Aug 10 - Fri, Aug 14
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
$170Allegiant Air
Fri, Oct 16 - Thu, Oct 22
Allegiant Air Logo
10:03 pm - 11:21 pm
TYS
-
LAS
4h 18mnonstop
Allegiant Air Logo
1:45 pm - 8:39 pm
LAS
-
TYS
3h 54mnonstop
$175Allegiant Air
Mon, Aug 10 - Fri, Aug 14
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
$179Allegiant Air
Mon, Aug 17 - Fri, Aug 21
Allegiant Air Logo
2:47 pm - 4:06 pm
TYS
-
LAS
4h 19mnonstop
Allegiant Air Logo
2:48 pm - 9:46 pm
LAS
-
TYS
3h 58mnonstop
$184Allegiant Air
Mon, Sep 7 - Fri, Sep 11
Allegiant Air Logo
1:22 pm - 2:36 pm
TYS
-
LAS
4h 14mnonstop
Allegiant Air Logo
11:19 am - 6:13 pm
LAS
-
TYS
3h 54mnonstop
$186Allegiant Air
Mon, Jul 27 - Mon, Aug 3
Allegiant Air Logo
2:47 pm - 3:54 pm
TYS
-
LAS
4h 07mnonstop
Allegiant Air Logo
7:00 am - 1:57 pm
LAS
-
TYS
3h 57mnonstop
$191Allegiant Air
Mon, Jul 27 - Fri, Jul 31
Multiple Airlines Logo
12:53 pm - 11:45 am
TYS
-
LAS
25h 52m
1 stop
Multiple Airlines Logo
11:39 pm - 10:01 pm
LAS
-
TYS
19h 22m
1 stop
$192Multiple Airlines
Mon, Sep 7 - Fri, Sep 18
Allegiant Air Logo
1:22 pm - 2:36 pm
TYS
-
LAS
4h 14mnonstop
Allegiant Air Logo
8:05 am - 2:59 pm
LAS
-
TYS
3h 54mnonstop
$193Allegiant Air
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 October.

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 Monday, 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 Mondays 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 $442 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 $384, 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 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$89
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Knoxville to Las Vegas

When to book flights from Knoxville to Las Vegas

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

FAQs for booking flights from Knoxville to Las Vegas

  • How early should I arrive at TYS Airport?

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

  • Does Knoxville airport have a lounge?

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

  • Does McGhee Tyson Airport have long-term parking?

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

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

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

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

    In the last 5 days, the lowest price for a flight from Knoxville to Las Vegas was $89 for a one-way ticket and $153 for a round-trip.

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

    No

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Knoxville to Las Vegas are Delta and United Airlines. With an average price for the route of $390 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 $457 and an overall rating of 7.4.

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

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

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

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

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

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

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

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

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $211 or less one-way and $222 or less round-trip.
  • If you want cash, ATMs are located at McGhee Tyson Airport (TYS) terminals. If you are traveling to LAS, make sure to verify your bank's charge schedule as well as your daily withdrawal limit. You should also advise your bank of your trip intentions. They can be found at Landside, Airside, and just next to Ruby Tuesday.
  • If you're exhausted following your flight, three sleep chambers within the Harry Reid International Airport (LAS) gym are available to rent by the hour. Each room has a single bed as well as access to a fridge, microwave, baggage storage, baths, lockers, and the fitness center. They may be found at Terminal 1. You will take the elevator to Level 0 from behind Baggage Claim #10.
  • The LAS airport has free Wi-Fi. If you need to check your email but don't have a device to connect to the internet, you can use any of the Embarq pay-email machines situated around the airport.
  • Nursing mothers may locate a Mamava pod after passing through the TYS Security Checkpoint and across from the food concession area. Inside the airport terminal building, the Mamava pod is a discreet and pleasant room dedicated for moms to breastfeed or pump. The self-contained transportable pod has comfy seats, a fold-down table, an electrical socket for plugging in a breast pump, and a lockable door for privacy.
  • Level 1 of the LAS terminal has a pet relief facility outside of baggage claim 1. You can go to the end of the window wall, turn right, and cross over it with your pet.
  • If you need to charge your device, there are power outlets located throughout the terminal at TYS airport as you wait for your flight. Seats with built-in power outlets and Recharge Zone workstations for charging laptops are also available in the gated sections of both terminals.

Prefer to fly direct from Knoxville to Las Vegas?

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

Direct departures

Knoxville McGhee Tyson to Las Vegas Harry Reid Intl

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Las Vegas Harry Reid Intl to Knoxville McGhee Tyson

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

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

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8410 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
7.2Food
Airline reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

6.0 GoodSarah, Jun 2026
LGA - MYR
Read more Delta reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

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

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.

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

Flight was delayed due to connecting passengers. Lack of snack options bad. Sitting in Aisle, last cart run pulled the cart directly into my knee. Rude awakening.

We sat on plane at gate delayed without communication as to why we were just sitting there

Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week

Trash. Sat on the runway for 40 mins…missed connecting flight because of it now I’m stuck. Thanks…a whole fkn lot.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

Awfully rude American worker at door when we started boarding flight. Then, walk into a blazing hot airplane with no air conditioning until twenty minutes into the flight. Free entertainment was non existent! My husband, along with the fellow passenger in our row, and I could not get entertainment to work, no WIFI! Really?? Been flying American a long time. Was very disappointed.

Flight was delayed by 6 hours... the level of incompetence was truly astounding. I won't be flying American Airlines again. I don't care if AA is direct and there is a layover with another airline, I'll take the layover.

Leave on time. We waited on the plane for hour hours and it was hot and smelly

Two hours delay, probably one hour because they didn’t bring catering and they had to bring water in board. There a change of aircraft. But delays galore at CLT so it must be a CLT and/or AA operation issue. The 1 hr additional delays because nobody could bring 2 packs of water sooner is probably the best example of this airline operates

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

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

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Information on your arrival and departure airports