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$82+ Cheap flights from Knoxville to Las Vegas (TYS - LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LAS
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl are usually found in January or August, booked 58 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap flight deals from Knoxville to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$151
(Cheapflightsfares)

One-way from

$82
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$338

Good round-trip deal

$159 or less

Good one-way deal

$80 or less
From Knoxville McGhee Tyson to Las Vegas Harry Reid Intl
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One-way flight from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl.
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Find flight deals from Knoxville to Las Vegas

Cheapest flights from Knoxville to Las Vegas
Explore the most affordable flight options available from Knoxville to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:28 pmTYS - LAS
Nonstop4h 07mAllegiant Air
Fri 8/156:40 amLAS - TYS
Nonstop3h 59mAllegiant Air
Deal found 7/27$151
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:00 amTYS - LAS
2 stops20h 39mMultiple Airlines
Fri 8/227:05 amLAS - TYS
Nonstop3h 59mMultiple Airlines
Deal found 7/27$226
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/262:16 pmTYS - LAS
1 stop9h 00mAmerican Airlines
Tue 9/211:45 pmLAS - TYS
1 stop9h 05mAmerican Airlines
Deal found 7/27$251
This FlightHub deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:25 pmTYS - LAS
1 stop9h 09mFrontier
Sat 8/164:07 pmLAS - TYS
1 stop21h 22mFrontier
Deal found 7/27$255
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:15 pmTYS - LAS
1 stop6h 27mDelta
Mon 11/1712:35 amLAS - TYS
1 stop7h 30mDelta
Deal found 7/28$270

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Knoxville to Las Vegas that are best for you.

Fly from

Knoxville

Fly to

Las Vegas

Route

Depart

Return

Price

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 8/11

2:28 pm-3:35 pm

Nonstop4h 07m

Las Vegas Harry Reid Intl

Fri 8/15

6:40 am-1:39 pm

Nonstop3h 59m

$151

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 8/18

6:00 am-11:39 pm

2 stops20h 39m

Las Vegas Harry Reid Intl

Fri 8/22

7:05 am-2:04 pm

Nonstop3h 59m

$226

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Tue 8/26

2:16 pm-8:16 pm

1 stop9h 00m

Las Vegas Harry Reid Intl

Tue 9/2

11:45 pm-11:50 am

1 stop9h 05m

$251

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Sun 8/10

5:25 pm-11:34 pm

1 stop9h 09m

Las Vegas Harry Reid Intl

Sat 8/16

4:07 pm-4:29 pm

1 stop21h 22m

$255

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Sat 8/23

6:14 pm-10:21 pm

1 stop7h 07m

Las Vegas Harry Reid Intl

Mon 8/25

12:33 am-10:42 am

1 stop7h 09m

$270

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 8/11

2:28 pm-3:35 pm

Nonstop4h 07m

$82

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Mon 8/11

6:55 am-5:43 pm

1 stop13h 48m

$91

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Sun 10/12

8:22 pm-11:32 pm

1 stop6h 10m

$128

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Wed 8/6

4:02 pm-10:11 pm

1 stop9h 09m

$158

KnoxvilleLas Vegas

TYS - LAS

TYSLAS

Knoxville McGhee Tyson

Tue 8/12

7:00 am-10:55 am

1 stop6h 55m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 12 results
1
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Best time to book a flight from Knoxville to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Knoxville to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Las Vegas. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to Las Vegas, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Las Vegas (average of $198). Flying from Knoxville to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to LAS?

Find hourly flight availability from Knoxville to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

It’s optimal to fly from Knoxville to Las Vegas in the afternoon. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Knoxville to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Las Vegas. Price data was last updated on July 20, 2025.

Travelers seeking maximum savings on their Knoxville to Las Vegas flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Knoxville to Las Vegas?

Share of 1-stop round-trip flights from Knoxville to Las Vegas chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Knoxville to Las Vegas on Cheapflights.

What’s the cheapest layover airport for flights from Knoxville to Las Vegas?

Average round-trip fare for 1-stop flights from Knoxville to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of $359.

What’s the fastest layover option from Knoxville to Las Vegas?

Shortest average travel time for 1-stop one-way flights from Knoxville to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 4h 55m.

Which airport typically offers the quickest layover for flights from Knoxville to Las Vegas?

Average layover duration for 1-stop one-way flights from Knoxville to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 37m.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated July 28, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Knoxville to Las Vegas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,238 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Knoxville to Las Vegas flight route?

    Within the past month, 5 users have taken a look at flights from Knoxville McGhee Tyson to Las Vegas Harry Reid Intl.

  • What are the cheapest airlines flying from Knoxville to Las Vegas round-trip?

    According to our current data, Allegiant Air ($151), American Airlines ($251), and Frontier ($255) offers the cheapest pricing from Knoxville to Las Vegas. These flights start at 53% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Knoxville to Las Vegas one-way?

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $82. Frontier flights start at $128 while deals on Delta start at $158 one-way.

  • What are the cheapest flights from Knoxville to Las Vegas?

    Looking at all options, your cheapest flight can be booked for $73. While the most popular route (Knoxville McGhee Tyson - Las Vegas Harry Reid Intl) can be booked for $137 on average our data indicates $160 when flying from Knoxville to Las Vegas.

  • Where are the most common layover locations when flying from Knoxville to Las Vegas?

    Of the flights from Knoxville to Las Vegas that have layovers, most of them stop in Dallas. Charlotte sees the next most layovers on Knoxville to Las Vegas flights.

  • What are some popular things to do or see while on a layover in Dallas?

    The majority of Dallas visitors spend their time at American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion. American Airlines Center, Dallas World Aquarium and Dos Equis Pavilion are located about 15.0 mi, 15.5 mi, and 18.3 mi, respectively from Dallas/Fort Worth if you are interested in checking them out. Travelers in need of a car in Dallas can rent one for about $51 per day.

  • What are some popular points of interest to see during a layover in Charlotte?

    Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are currently the most popular points of interest in Charlotte at the moment. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame can be accessed by traveling approximately 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas. Those landing in Charlotte looking to spend some time exploring during their layover can rent a car for about $49 per day.

  • Where are the least popular layover locations for Knoxville to Las Vegas flights?

    Knoxville to Las Vegas flights that have layovers will least frequently stop in Atlanta.

  • Can I find deals for flights from Knoxville to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Knoxville to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Las Vegas.

  • Can I find deals for business class flights from Knoxville to Las Vegas?

    Yes. Cheapflights offers flight deals from Knoxville to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Las Vegas (average of $198). Flying from Knoxville to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

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

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Top 5 airlines flying from Knoxville to Las Vegas

Discover the top 5 airlines that operate flights from Knoxville to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$241FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$130Average$256FlexibilityNo cancel feeOn-time88%
DeltaCheapest$237Average$364FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$431FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$388FlexibilityNo cancel feeOn-time71%

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