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$114+ Cheap flights from Las Vegas to Knoxville (LAS - TYS)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — TYS
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson are usually found in September or October, booked 22 days in advance, depart on a Friday or Tuesday and return on a Wednesday

Cheap flight deals from Las Vegas to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Knoxville (TYS). 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 septiembre 16, 2025.

Round-trip from

$145
(Cheapflightsfares)

One-way from

$114
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$253

Good round-trip deal

$137 or less

Good one-way deal

$123 or less
From Las Vegas Harry Reid Intl to Knoxville McGhee Tyson
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One-way flight from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 16% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Knoxville McGhee Tyson.
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Find flight deals from Las Vegas to Knoxville

Cheapest flights from Las Vegas to Knoxville
Explore the most affordable flight options available from Las Vegas to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
vie. 9/263:35 pmLAS - TYS
Nonstop3h 55mAllegiant Air
lun. 9/298:30 amTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 9/16$145
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
vie. 9/263:35 pmLAS - TYS
Nonstop3h 55mAllegiant Air
dom. 9/284:50 pmTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 9/14$152
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
vie. 9/193:35 pmLAS - TYS
Nonstop3h 55mAllegiant Air
dom. 9/284:50 pmTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 9/14$173
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
vie. 9/193:35 pmLAS - TYS
Nonstop3h 55mAllegiant Air
dom. 9/2111:00 amTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 9/13$180
This Gotogate deal was found by Cheapflights users on 9/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/181:03 pmLAS - TYS
Nonstop3h 55mAllegiant Air
dom. 9/2111:00 amTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 9/13$218
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/26:00 amLAS - TYS
1 stop10h 50mFrontier
dom. 10/55:08 pmTYS - LAS
1 stop6h 13mFrontier
Deal found 9/15$221
This FlightHub deal was found by Cheapflights users on 9/14. 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.
vie. 9/263:35 pmLAS - TYS
Nonstop3h 55mMultiple Airlines
dom. 9/285:08 pmTYS - LAS
1 stop6h 13mMultiple Airlines
Deal found 9/14$243

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 16, 2025.
Use the filters below to find and compare flights from Las Vegas to Knoxville that are best for you.

Fly from

Las Vegas

Fly to

Knoxville

Route

Depart

Return

Price

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

vie. 9/26

3:35 pm-10:30 pm

Nonstop3h 55m

Knoxville McGhee Tyson

lun. 9/29

8:30 am-9:43 am

Nonstop4h 13m

$145

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

jue. 10/2

8:35 am-3:28 pm

Nonstop3h 53m

Knoxville McGhee Tyson

dom. 10/5

5:44 pm-4:32 pm

1 stop25h 48m

$245

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mié. 11/5

1:20 pm-11:59 pm

1 stop7h 39m

Knoxville McGhee Tyson

mié. 11/19

8:26 am-12:42 pm

1 stop7h 16m

$251

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mar. 11/4

12:15 am-3:42 pm

1 stop12h 27m

Knoxville McGhee Tyson

mié. 11/19

8:15 am-6:28 pm

1 stop13h 13m

$311

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mar. 11/4

12:15 am-3:42 pm

1 stop12h 27m

Knoxville McGhee Tyson

lun. 11/10

2:47 pm-11:53 pm

2 stops12h 06m

$313

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

vie. 11/28

6:00 am-2:46 pm

1 stop5h 46m

Knoxville McGhee Tyson

mar. 12/2

3:56 pm-8:24 pm

1 stop7h 28m

$315

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

jue. 10/30

12:59 am-6:15 pm

2 stops14h 16m

Knoxville McGhee Tyson

dom. 11/2

7:00 am-12:07 pm

1 stop8h 07m

$323

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mar. 11/4

10:33 pm-3:42 pm

2 stops14h 09m

Knoxville McGhee Tyson

jue. 11/6

1:16 pm-5:32 pm

1 stop7h 16m

$330

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mar. 11/25

11:50 pm-10:48 am

1 stop7h 58m

Knoxville McGhee Tyson

mar. 12/2

5:54 pm-9:58 pm

1 stop7h 04m

$347

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

mar. 11/25

6:00 am-2:46 pm

1 stop5h 46m

Knoxville McGhee Tyson

mar. 12/2

3:56 pm-8:24 pm

1 stop7h 28m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Las Vegas to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Las Vegas 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 Las Vegas to Knoxville

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

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to Knoxville. Price data was last updated on September 12, 2025.

The best time to book flights from Las Vegas to Knoxville is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Knoxville (average of $295). Flying from Las Vegas to Knoxville in March is currently the most expensive (average of $376). 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 LAS to TYS?

Find hourly flight availability from Las Vegas to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

It’s typically best to fly out from Las Vegas to Knoxville in the afternoon. Doing so could potentially save you 44% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated septiembre 16, 2025.
Read through reviews of airlines operating flights from Las Vegas to Knoxville, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
7,957 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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
699 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

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 Las Vegas to Knoxville. 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 Las Vegas to Knoxville flight route?

    The Las Vegas Harry Reid Intl to Knoxville McGhee Tyson flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Las Vegas to Knoxville?

    For as low as $145, Allegiant Air can have you in Knoxville from Las Vegas in 3h 55m. Airlines will cover a distance of 1734 mi. This flight may include one or multiple stops.

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

    Currently priced at $134, Allegiant Air will fly you from Las Vegas to Knoxville and back. In addition to Allegiant Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $243 and $250, respectively. These flights start at 57% lower than the current average price 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $85. While the most popular route (Las Vegas Harry Reid Intl - Knoxville McGhee Tyson) can be booked for $152 on average, our data indicates $180 when flying from Las Vegas to Knoxville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas to Knoxville 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 Las Vegas to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Knoxville (average of $295). Flying from Las Vegas to Knoxville in March is currently the most expensive (average of $376). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Alcoa
Oak Ridge
Murphy

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Top 4 airlines flying from Las Vegas to Knoxville

Discover the top 4 airlines that operate flights from Las Vegas to Knoxville. 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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$134Average$235FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$243Average$331FlexibilityNo cancel feeOn-time71%
DeltaCheapest$250Average$344FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$435FlexibilityNo cancel feeOn-time69%

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