What is the cheapest airline that flies from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl?

Allegiant Air and Frontier are the most popular carriers operating from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl

What airlines fly to Las Vegas?

Allegiant Air, American Airlines and Delta are the top three most popular airlines that fly to Las Vegas from Knoxville according to our data. Allegiant Air is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 5 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Knoxville and Las Vegas?

Dallas (DFW) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Knoxville to Las Vegas?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 6h 43m.

Which layover airport has the shortest connection time from Knoxville to Las Vegas?

Dallas (DFW) has the shortest average layover time for this route: 1h 08m.

Which layover airport offers the lowest fares from Knoxville to Las Vegas?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $348.

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?

Prices for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport are updated daily.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?

As of February 2026, there are 5 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport.

What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$86 Cheap Flights from Knoxville to Las Vegas in 2026

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1:40 pm - 3:28 pm

TYS

LAS

4h 48mnonstop

4:11 pm - 10:54 pm

LAS

TYS

3h 43mnonstop

$176Allegiant Air

Mon, Feb 23 - Fri, Feb 27

1:40 pm - 3:28 pm

TYS

LAS

4h 48mnonstop

4:11 pm - 10:54 pm

LAS

TYS

3h 43mnonstop

$184Allegiant Air

Mon, Feb 23 - Fri, Feb 27

1:36 pm - 3:04 pm

TYS

LAS

4h 28mnonstop

12:18 pm - 7:03 pm

LAS

TYS

3h 45mnonstop

$185Allegiant Air

Mon, Mar 9 - Wed, Mar 11

1:43 pm - 3:14 pm

TYS

LAS

4h 31mnonstop

4:04 pm - 10:51 pm

LAS

TYS

3h 47mnonstop

$188Allegiant Air

Mon, Apr 13 - Mon, Apr 20

8:13 pm - 11:44 pm

TYS

LAS

6h 31m

1 stop

8:14 am - 6:06 pm

LAS

TYS

6h 52m

1 stop

$190Frontier

Mon, Feb 23 - Fri, Feb 27

1:43 pm - 3:14 pm

TYS

LAS

4h 31mnonstop

4:04 pm - 10:51 pm

LAS

TYS

3h 47mnonstop

$203Allegiant Air

Mon, Apr 13 - Fri, Apr 24

8:13 pm - 11:44 pm

TYS

LAS

6h 31m

1 stop

8:14 am - 6:06 pm

LAS

TYS

6h 52m

1 stop

$211Frontier

Mon, Feb 23 - Fri, Feb 27

1:40 pm - 3:28 pm

TYS

LAS

4h 48mnonstop

4:18 pm - 11:01 pm

LAS

TYS

3h 43mnonstop

$212Allegiant Air

Mon, Feb 16 - Fri, Feb 20

1:43 pm - 3:14 pm

TYS

LAS

4h 31mnonstop

4:04 pm - 10:51 pm

LAS

TYS

3h 47mnonstop

$222Allegiant Air

Fri, May 8 - Mon, May 11

4:28 pm - 11:36 pm

TYS

LAS

10h 08m

1 stop

12:59 am - 3:33 pm

LAS

TYS

11h 34m

1 stop

$232Frontier

Thu, Apr 16 - Sat, Apr 18

Frontier flights from Knoxville to Las Vegas

Our best Frontier deals on Knoxville to Las Vegas flight tickets

Frontier

Feb 23

TYS8:13 pmKnoxville McGhee Tyson

6h 31m

1 stop

LAS11:44 pmLas Vegas Harry Reid Intl

Feb 27

LAS8:14 amLas Vegas Harry Reid Intl

6h 52m

1 stop

TYS6:06 pmKnoxville McGhee Tyson

$190

Frontier

Feb 23

TYS8:13 pmKnoxville McGhee Tyson

6h 31m

1 stop

LAS11:44 pmLas Vegas Harry Reid Intl

Feb 27

LAS8:14 amLas Vegas Harry Reid Intl

6h 52m

1 stop

TYS6:06 pmKnoxville McGhee Tyson

$211

Frontier

Apr 16

TYS4:28 pmKnoxville McGhee Tyson

10h 08m

1 stop

LAS11:36 pmLas Vegas Harry Reid Intl

Apr 18

LAS12:59 amLas Vegas Harry Reid Intl

11h 34m

1 stop

TYS3:33 pmKnoxville McGhee Tyson

$232

Allegiant Air flights from Knoxville to Las Vegas

Our best Allegiant Air deals on Knoxville to Las Vegas flight tickets

Allegiant Air

Feb 23

TYS1:40 pmKnoxville McGhee Tyson

4h 48m

LAS3:28 pmLas Vegas Harry Reid Intl

Feb 27

LAS4:11 pmLas Vegas Harry Reid Intl

3h 43m

TYS10:54 pmKnoxville McGhee Tyson

$169

Allegiant Air

Feb 23

TYS1:40 pmKnoxville McGhee Tyson

4h 48m

LAS3:28 pmLas Vegas Harry Reid Intl

Feb 27

LAS4:11 pmLas Vegas Harry Reid Intl

3h 43m

TYS10:54 pmKnoxville McGhee Tyson

$176

Allegiant Air

Feb 23

TYS1:40 pmKnoxville McGhee Tyson

4h 48m

LAS3:28 pmLas Vegas Harry Reid Intl

Feb 27

LAS4:11 pmLas Vegas Harry Reid Intl

3h 43m

TYS10:54 pmKnoxville McGhee Tyson

$184

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 2/23

1:40 pm-3:28 pm

Nonstop4h 48m

Las Vegas Harry Reid Intl

Fri 2/27

4:11 pm-10:54 pm

Nonstop3h 43m

$176

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 2/23

1:40 pm-3:28 pm

Nonstop4h 48m

Las Vegas Harry Reid Intl

Fri 2/27

4:11 pm-10:54 pm

Nonstop3h 43m

$184

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 3/9

1:36 pm-3:04 pm

Nonstop4h 28m

Las Vegas Harry Reid Intl

Wed 3/11

12:18 pm-7:03 pm

Nonstop3h 45m

$185

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 4/13

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Mon 4/20

4:04 pm-10:51 pm

Nonstop3h 47m

$188

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 2/23

8:13 pm-11:44 pm

1 stop6h 31m

Las Vegas Harry Reid Intl

Fri 2/27

8:14 am-6:06 pm

1 stop6h 52m

$190

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 4/13

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Fri 4/24

4:04 pm-10:51 pm

Nonstop3h 47m

$203

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 2/23

8:13 pm-11:44 pm

1 stop6h 31m

Las Vegas Harry Reid Intl

Fri 2/27

8:14 am-6:06 pm

1 stop6h 52m

$211

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 2/16

1:40 pm-3:28 pm

Nonstop4h 48m

Las Vegas Harry Reid Intl

Fri 2/20

4:18 pm-11:01 pm

Nonstop3h 43m

$212

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Fri 5/8

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Mon 5/11

4:04 pm-10:51 pm

Nonstop3h 47m

$222

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-11:36 pm

1 stop10h 08m

Las Vegas Harry Reid Intl

Sat 4/18

12:59 am-3:33 pm

1 stop11h 34m

$232

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How to get the cheapest flight ticket from Knoxville to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Las Vegas?

The month of January is, on average, the cheapest month to fly to Las Vegas from Knoxville, with most prices found around $250. The month of September is another great option to travel to Las Vegas, with average flight prices from Knoxville averaging around $269.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Wednesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $168. Flights from Knoxville to Las Vegas on a Thursday will generally be more expensive and average around $327. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the afternoon when flights can be purchased for as low as $220. Flights to Las Vegas are more costly at noon, with an average ticket price of $249. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Knoxville McGhee Tyson to Las Vegas Harry Reid Intl flight route?

Fly from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl for the best Knoxville McGhee Tyson - Las Vegas Harry Reid Intl flight prices

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

You are more likely to see cheaper flights to Las Vegas from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Knoxville for as low as $203 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Las Vegas Harry Reid Intl flights?

There is only 1 cabin class available to choose from on Knoxville McGhee Tyson to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Las Vegas flight prices changed over time?

As of February 2026, prices for Knoxville to Las Vegas flights are approximately 39% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Knoxville to Las Vegas (TYS to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Las Vegas

Best Price Found	$195
Fastest flight time	4h 07m
Direct flights	Tue, Thu and Sat
Airports in Las Vegas	1 airport

The best one-way flight to Las Vegas from Knoxville in the past 72 hours is $195. The best round-trip flight deal from Knoxville to Las Vegas found on momondo in the last 72 hours is $184.

The fastest flight from Knoxville to Las Vegas takes 4h 07m

Direct flights go from Knoxville to Las Vegas on Tuesday, Thursday and Saturday. The only airline offering direct flights is Allegiant Air.

There is 1 airport in Las Vegas. From Knoxville there are direct flights to Las Vegas Harry Reid Intl (LAS).

Search flight deals

How far is Knoxville McGhee Tyson to Las Vegas Harry Reid Intl by plane?
The distance between Knoxville McGhee Tyson and Las Vegas Harry Reid Intl is about 1734.7 mi. Flights usually cover this in 4h 07m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?
As of February 2026, there are 5 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Las Vegas Harry Reid Intl Airport.
What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?
The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Knoxville to Las Vegas?
Based on momondo bookings for flights between Knoxville and Las Vegas, the leading plane model is Airbus A320-100/200, making up 90.91% of the total bookings. Other popular models include Airbus A319 with 4.04%, Boeing 737 MAX 8 with 2.02%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 1.01%.
What is the most popular airline from Knoxville to Las Vegas?
Based on momondo bookings for flights between Knoxville and Las Vegas, the leading airline is Allegiant Air, making up 41% of the total bookings. Other popular airlines include American Airlines with 31%, Delta with 16%, and United Airlines with 10%.

Best airlines flying from Knoxville to Las Vegas

Compare and see reviews for airlines that fly from Knoxville to Las Vegas with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $112	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
Allegiant Air	PriceFrom $129	Free Cancellation	Rating 7.2 711 reviews	Search Allegiant Air flights
Delta	PriceFrom $189	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 9,273 reviews	Search United Airlines flights
American Airlines	PriceFrom $251	Free Cancellation	Rating 7.2 11,265 reviews	Search American Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Las Vegas?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Las Vegas from Knoxville.

Can I find flights from Knoxville to Las Vegas with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Las Vegas from Knoxville with this policy.

How can momondo help me find flights from Knoxville to Las Vegas?

Once all potential Knoxville to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Knoxville to Las Vegas right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Knoxville to Las Vegas now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Las Vegas and let you know when they change.

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Cheap flights from Knoxville to Las Vegas from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Las Vegas departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Knoxville to Las Vegas

What is the cheapest month to fly to Las Vegas?

What is the cheapest day to depart on your flight to Las Vegas?

What is the cheapest time of day to depart on your flight to Las Vegas?

What is the cheapest Knoxville McGhee Tyson to Las Vegas Harry Reid Intl flight route?

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

What cabin class options are available on Knoxville McGhee Tyson to Las Vegas Harry Reid Intl flights?

How have Knoxville to Las Vegas flight prices changed over time?

What is the cheapest airline that flies from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl?

What airlines fly to Las Vegas?

Which airport is the most popular layover for flights between Knoxville and Las Vegas?

Which layover airport offers the lowest fares from Knoxville to Las Vegas?

Which layover airport has the shortest travel time from Knoxville to Las Vegas?

Which layover airport has the shortest connection time from Knoxville to Las Vegas?

When to book flights from Knoxville to Las Vegas

Cheap Knoxville to Las Vegas (TYS to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Las Vegas

Best Price Found

Fastest flight time

Direct flights

Airports in Las Vegas

Best airlines flying from Knoxville to Las Vegas

Compare and see reviews for airlines that fly from Knoxville to Las Vegas with momondo

Traveling to a place near Las Vegas?

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Las Vegas?

Can I find flights from Knoxville to Las Vegas with flexible booking policies on momondo?

How can momondo help me find flights from Knoxville to Las Vegas?

I’m not ready to book a flight from Knoxville to Las Vegas right now. Can momondo alert me if prices change?

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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