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Cheap flights from Las Vegas to Knoxville from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Knoxville departing on 1/8. 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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0 bags

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Find the cheapest flights from Las Vegas to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:00 am - 4:50 pm
LAS
-
TYS
3h 50mnonstop
Allegiant Air Logo
7:35 am - 9:10 am
TYS
-
LAS
4h 35mnonstop
$144Allegiant Air
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
12:59 am - 7:23 pm
LAS
-
TYS
15h 24m1 stop
Frontier Logo
8:18 pm - 11:39 pm
TYS
-
LAS
6h 21m1 stop
$217Frontier
Wed, Jan 14 - Sun, Jan 18
Multiple Airlines Logo
10:00 am - 4:50 pm
LAS
-
TYS
3h 50mnonstop
Multiple Airlines Logo
8:30 am - 11:44 pm
TYS
-
LAS
18h 14m1 stop
$223Multiple Airlines
Fri, Jan 9 - Mon, Jan 12
Allegiant Air Logo
7:15 am - 10:28 pm
LAS
-
TYS
12h 13m2 stops
Allegiant Air Logo
7:35 am - 9:10 am
TYS
-
LAS
4h 35mnonstop
$229Allegiant Air
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
10:00 am - 4:50 pm
LAS
-
TYS
3h 50mnonstop
Multiple Airlines Logo
12:55 pm - 6:47 pm
TYS
-
LAS
32h 52m3 stops
$230Multiple Airlines
Fri, Jan 9 - Mon, Jan 12
Allegiant Air Logo
10:00 am - 4:50 pm
LAS
-
TYS
3h 50mnonstop
Allegiant Air Logo
7:35 am - 9:10 am
TYS
-
LAS
4h 35mnonstop
$239Allegiant Air
Mon, Jan 12 - Fri, Jan 16
Allegiant Air Logo
10:19 am - 5:02 pm
LAS
-
TYS
3h 43mnonstop
Allegiant Air Logo
7:35 am - 9:10 am
TYS
-
LAS
4h 35mnonstop
$243Allegiant Air
Mon, Jan 5 - Mon, Jan 12
Multiple Airlines Logo
6:00 am - 6:39 pm
LAS
-
TYS
9h 39m1 stop
Multiple Airlines Logo
10:00 am - 2:48 pm
TYS
-
LAS
7h 48m1 stop
$244Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Allegiant Air Logo
10:19 am - 5:02 pm
LAS
-
TYS
3h 43mnonstop
Allegiant Air Logo
8:00 am - 9:29 am
TYS
-
LAS
4h 29mnonstop
$271Allegiant Air
Fri, Jan 2 - Mon, Jan 5
Frontier Logo
12:59 am - 3:51 pm
LAS
-
TYS
11h 52m1 stop
Frontier Logo
4:46 pm - 11:42 pm
TYS
-
LAS
9h 56m1 stop
$274Frontier
Sun, Dec 28 - Mon, Jan 5

Frontier flights from Las Vegas to Knoxville

Our best Frontier deals on Las Vegas to Knoxville flight tickets
Frontier
Jan 14
LAS12:59 amLas Vegas Harry Reid Intl
15h 24m
1 stop
TYS7:23 pmKnoxville McGhee Tyson
Jan 18
TYS8:18 pmKnoxville McGhee Tyson
6h 21m
1 stop
LAS11:39 pmLas Vegas Harry Reid Intl
$217
Find similar
Frontier
Dec 28
LAS12:59 amLas Vegas Harry Reid Intl
11h 52m
1 stop
TYS3:51 pmKnoxville McGhee Tyson
Jan 5
TYS4:46 pmKnoxville McGhee Tyson
9h 56m
1 stop
LAS11:42 pmLas Vegas Harry Reid Intl
$274
Find similar
Frontier
Dec 17
LAS12:59 amLas Vegas Harry Reid Intl
11h 32m
1 stop
TYS3:31 pmKnoxville McGhee Tyson
Dec 25
TYS4:26 pmKnoxville McGhee Tyson
17h 41m
2 stops
LAS7:07 amLas Vegas Harry Reid Intl
$365
Find similar

American Airlines flights from Las Vegas to Knoxville

Our best American Airlines deals on Las Vegas to Knoxville flight tickets
American Airlines
Feb 4
LAS7:00 amLas Vegas Harry Reid Intl
5h 46m
1 stop
TYS3:46 pmKnoxville McGhee Tyson
Feb 9
TYS12:15 pmKnoxville McGhee Tyson
8h 28m
1 stop
LAS5:43 pmLas Vegas Harry Reid Intl
$315
Find similar
American Airlines
Feb 4
LAS12:32 pmLas Vegas Harry Reid Intl
7h 15m
2 stops
TYS10:47 pmKnoxville McGhee Tyson
Feb 9
TYS5:24 pmKnoxville McGhee Tyson
8h 59m
1 stop
LAS11:23 pmLas Vegas Harry Reid Intl
$320
Find similar
American Airlines
Dec 20
LAS11:55 amLas Vegas Harry Reid Intl
7h 03m
1 stop
TYS9:58 pmKnoxville McGhee Tyson
Jan 3
TYS5:40 pmKnoxville McGhee Tyson
8h 45m
1 stop
LAS11:25 pmLas Vegas Harry Reid Intl
$411
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to Knoxville 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 December 11, 2025.
Use the filters below to find and compare flights from Las Vegas to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 1/9

10:00 am-4:50 pm

Nonstop3h 50m

Knoxville McGhee Tyson

Mon 1/12

7:35 am-9:10 am

Nonstop4h 35m

$144

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Wed 1/14

12:59 am-7:23 pm

1 stop15h 24m

Knoxville McGhee Tyson

Sun 1/18

8:18 pm-11:39 pm

1 stop6h 21m

$217

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 1/9

10:00 am-4:50 pm

Nonstop3h 50m

Knoxville McGhee Tyson

Mon 1/12

8:30 am-11:44 pm

1 stop18h 14m

$223

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 1/9

7:15 am-10:28 pm

2 stops12h 13m

Knoxville McGhee Tyson

Mon 1/12

7:35 am-9:10 am

Nonstop4h 35m

$229

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 1/9

10:00 am-4:50 pm

Nonstop3h 50m

Knoxville McGhee Tyson

Mon 1/12

12:55 pm-6:47 pm

3 stops32h 52m

$230

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Mon 1/12

10:00 am-4:50 pm

Nonstop3h 50m

Knoxville McGhee Tyson

Fri 1/16

7:35 am-9:10 am

Nonstop4h 35m

$239

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Mon 1/5

10:19 am-5:02 pm

Nonstop3h 43m

Knoxville McGhee Tyson

Mon 1/12

7:35 am-9:10 am

Nonstop4h 35m

$243

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Sun 1/25

6:00 am-6:39 pm

1 stop9h 39m

Knoxville McGhee Tyson

Sun 2/1

10:00 am-2:48 pm

1 stop7h 48m

$244

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 1/2

10:19 am-5:02 pm

Nonstop3h 43m

Knoxville McGhee Tyson

Mon 1/5

8:00 am-9:29 am

Nonstop4h 29m

$271

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Sun 12/28

12:59 am-3:51 pm

1 stop11h 52m

Knoxville McGhee Tyson

Mon 1/5

4:46 pm-11:42 pm

1 stop9h 56m

$274

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 Knoxville from

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

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 cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Las Vegas, with most prices found around $263. If you aren’t able to travel during the month of September, then book flights to Knoxville from Las Vegas during April instead. Flights to Knoxville in April, while not as cheap as those in September, still average around $286.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Las Vegas to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $208. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Las Vegas to Knoxville for around $320.

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

At noon is the cheapest time of day to fly from Las Vegas to Knoxville when you can find flight prices for as low as $144. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the evening when prices are around $313.

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

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

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $330 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Las Vegas for as low as $189 on momondo.

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

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl to Knoxville McGhee Tyson 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 Las Vegas to Knoxville flights?

You could potentially save up to 34% on your flight if you consider stops on a Las Vegas to Knoxville flight.

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

As of December 2025, prices for Las Vegas to Knoxville flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Las Vegas to Knoxville

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

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

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

Fastest flight time

3h 43m

Direct flights

Tue and Sat

Airports in Knoxville

1 airport
The fastest flight from Las Vegas to Knoxville takes 3h 43m
Direct flights go from Las Vegas to Knoxville on Tuesday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Knoxville. From Las Vegas there are direct flights to Knoxville McGhee Tyson (TYS).
Search flight deals

  • How far is Las Vegas Harry Reid Intl to Knoxville McGhee Tyson by plane?

    Las Vegas Harry Reid Intl and Knoxville McGhee Tyson are 1734.7 mi apart from one another. A reasonable flight in good conditions will take 3h 43m.

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

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

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

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

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The necessary travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Las Vegas to Knoxville?

  • What is the most popular airline from Las Vegas to Knoxville?

Best airlines flying from Las Vegas to Knoxville

Compare and see reviews for airlines that fly from Las Vegas to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $137Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
DeltaPriceFrom $240Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Jefferson City
Clinton
Rockford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Las Vegas to Knoxville for you.

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

All flight searches from Las Vegas to Knoxville on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Las Vegas to Knoxville 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 Las Vegas to Knoxville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from Las Vegas and alert you when they change.

An easier way to manage your Knoxville trip

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