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Cheap flights from Knoxville to Las Vegas from $96

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 4/27. 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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Find the cheapest flights from Knoxville to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
11:44 pm - 6:03 pm
LAS
-
TYS
15h 19m
1 stop
$173Allegiant Air
Fri, May 15 - Fri, May 15
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$180Allegiant Air
Fri, May 15 - Mon, May 18
Frontier Logo
4:28 pm - 11:36 pm
TYS
-
LAS
10h 08m
1 stop
Frontier Logo
12:59 am - 3:33 pm
LAS
-
TYS
11h 34m
1 stop
$185Frontier
Thu, Apr 30 - Sat, May 2
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$191Allegiant Air
Mon, May 4 - Mon, May 11
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$209Allegiant Air
Mon, May 4 - Fri, May 8
Allegiant Air Logo
1:43 pm - 3:14 pm
TYS
-
LAS
4h 31mnonstop
Allegiant Air Logo
4:04 pm - 10:51 pm
LAS
-
TYS
3h 47mnonstop
$210Allegiant Air
Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
6:54 pm - 10:45 pm
TYS
-
LAS
6h 51m
1 stop
American Airlines Logo
10:42 pm - 8:32 am
LAS
-
TYS
6h 50m
1 stop
$213American Airlines
Sat, May 9 - Tue, May 12
Frontier Logo
4:28 pm - 7:04 am
TYS
-
LAS
17h 36m
1 stop
Frontier Logo
9:20 pm - 3:33 pm
LAS
-
TYS
15h 13m
1 stop
$216Frontier
Thu, Apr 16 - Sat, Apr 18
Frontier Logo
4:28 pm - 7:04 am
TYS
-
LAS
17h 36m
1 stop
Frontier Logo
6:00 am - 3:33 pm
LAS
-
TYS
6h 33m
1 stop
$225Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:20 pm - 3:35 pm
TYS
-
LAS
26h 15m
1 stop
Frontier Logo
6:00 am - 3:33 pm
LAS
-
TYS
6h 33m
1 stop
$226Frontier
Fri, Apr 10 - Thu, Apr 16

American Airlines flights from Knoxville to Las Vegas

Our best American Airlines deals on Knoxville to Las Vegas flight tickets
American Airlines
May 9
TYS6:54 pmKnoxville McGhee Tyson
6h 51m
1 stop
LAS10:45 pmLas Vegas Harry Reid Intl
May 12
LAS10:42 pmLas Vegas Harry Reid Intl
6h 50m
1 stop
TYS8:32 amKnoxville McGhee Tyson
$213
American Airlines
May 7
TYS4:09 pmKnoxville McGhee Tyson
9h 36m
1 stop
LAS10:45 pmLas Vegas Harry Reid Intl
May 11
LAS10:42 pmLas Vegas Harry Reid Intl
8h 10m
1 stop
TYS9:52 amKnoxville McGhee Tyson
$231
American Airlines
Jun 3
TYS5:33 pmKnoxville McGhee Tyson
8h 07m
1 stop
LAS10:40 pmLas Vegas Harry Reid Intl
Jun 10
LAS12:10 pmLas Vegas Harry Reid Intl
8h 49m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$287

Allegiant Air flights from Knoxville to Las Vegas

Our best Allegiant Air deals on Knoxville to Las Vegas flight tickets
Allegiant Air
May 15
TYS1:43 pmKnoxville McGhee Tyson
4h 31m
LAS3:14 pmLas Vegas Harry Reid Intl
May 15
LAS11:44 pmLas Vegas Harry Reid Intl
15h 19m
1 stop
TYS6:03 pmKnoxville McGhee Tyson
$173
Allegiant Air
May 15
TYS1:43 pmKnoxville McGhee Tyson
4h 31m
LAS3:14 pmLas Vegas Harry Reid Intl
May 18
LAS4:04 pmLas Vegas Harry Reid Intl
3h 47m
TYS10:51 pmKnoxville McGhee Tyson
$180
Allegiant Air
May 4
TYS1:43 pmKnoxville McGhee Tyson
4h 31m
LAS3:14 pmLas Vegas Harry Reid Intl
May 11
LAS4:04 pmLas Vegas Harry Reid Intl
3h 47m
TYS10:51 pmKnoxville McGhee Tyson
$191

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 31, 2026.
Use the filters below to find and compare flights from Knoxville to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Fri 5/15

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Fri 5/15

11:44 pm-6:03 pm

1 stop15h 19m

$173
Quickest round-trip

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Fri 5/15

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Mon 5/18

4:04 pm-10:51 pm

Nonstop3h 47m

$180

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Thu 4/30

4:28 pm-11:36 pm

1 stop10h 08m

Las Vegas Harry Reid Intl

Sat 5/2

12:59 am-3:33 pm

1 stop11h 34m

$185

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 5/4

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Mon 5/11

4:04 pm-10:51 pm

Nonstop3h 47m

$191

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 5/4

1:43 pm-3:14 pm

Nonstop4h 31m

Las Vegas Harry Reid Intl

Fri 5/8

4:04 pm-10:51 pm

Nonstop3h 47m

$209

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 4/17

4:04 pm-10:51 pm

Nonstop3h 47m

$210

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Sat 5/9

6:54 pm-10:45 pm

1 stop6h 51m

Las Vegas Harry Reid Intl

Tue 5/12

10:42 pm-8:32 am

1 stop6h 50m

$213

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-7:04 am

1 stop17h 36m

Las Vegas Harry Reid Intl

Sat 4/18

9:20 pm-3:33 pm

1 stop15h 13m

$216

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-7:04 am

1 stop17h 36m

Las Vegas Harry Reid Intl

Sun 4/19

6:00 am-3:33 pm

1 stop6h 33m

$225

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Fri 4/10

4:20 pm-3:35 pm

1 stop26h 15m

Las Vegas Harry Reid Intl

Thu 4/16

6:00 am-3:33 pm

1 stop6h 33m

$226

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

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

What is the typical price of a round-trip flight between Knoxville and Las Vegas?

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 August is another great option to travel to Las Vegas, with average flight prices from Knoxville averaging around $271.

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

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $200. Flights from Knoxville to Las Vegas on a Thursday will generally be more expensive and average around $325. 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 in the evening, with an average ticket price of $269. Departure times in the evening 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 $330 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.

Can stopping save me money on Knoxville to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Knoxville to Las Vegas.

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

As of March 2026, prices for Knoxville to Las Vegas flights are approximately 8% cheaper 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

$98

Fastest flight time

4h 08m

Direct flights

Tue and Sat

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Knoxville in the past 72 hours is $98. The best round-trip flight deal from Knoxville to Las Vegas found on momondo in the last 72 hours is $290.
The fastest flight from Knoxville to Las Vegas takes 4h 08m
Direct flights go from Knoxville to Las Vegas on Tuesday 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 08m, 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?

  • 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?

  • What is the most popular airline from Knoxville to 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $112Free CancellationRating
5.7
3,009 reviews
Search Frontier flights
Allegiant AirPriceFrom $126Free CancellationRating
7.3
709 reviews
Search Allegiant Air flights
DeltaPriceFrom $157Free CancellationRating
7.9
8,365 reviews
Search Delta flights
United AirlinesPriceFrom $250Free CancellationRating
7.4
9,525 reviews
Search United Airlines flights
American AirlinesPriceFrom $251Free CancellationRating
7.1
11,542 reviews
Search American Airlines flights

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Furnace Creek
Primm
Boulder City
Sunrise Manor
Winchester
Needles

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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