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$75+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — TYS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 October or April, booked 22 days in advance, depart on a Thursday or Saturday 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 August 14, 2025.

Round-trip from

$130
(Cheapflightsfares)

One-way from

$75
(Cheapflightsfares)

Popular in

March

Cheapest in

October

Average price

$288

Good round-trip deal

$210 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 ($60 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 August 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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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 August 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
Fri 9/193:35 pmLAS - TYS
Nonstop3h 55mAllegiant Air
Sun 9/284:50 pmTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 8/14$130
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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.
Fri 8/294:40 pmLAS - TYS
Nonstop3h 59mAllegiant Air
Mon 9/11:55 pmTYS - LAS
Nonstop4h 21mAllegiant Air
Deal found 8/13$167
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:05 pmLAS - TYS
2 stops19h 45mFrontier
Mon 9/88:35 pmTYS - LAS
1 stop5h 58mFrontier
Deal found 8/13$209
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:33 amLAS - TYS
Nonstop3h 55mMultiple Airlines
Fri 9/196:24 pmTYS - LAS
1 stop23h 21mMultiple Airlines
Deal found 8/13$212
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Thu 11/136:00 amLAS - TYS
1 stop7h 14mMultiple Airlines
Mon 11/178:00 amTYS - LAS
Nonstop4h 17mMultiple Airlines
Deal found 8/12$215
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:24 amLAS - TYS
1 stop27h 19mMultiple Airlines
Mon 9/88:30 amTYS - LAS
Nonstop4h 13mMultiple Airlines
Deal found 8/13$216
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/123:35 pmLAS - TYS
Nonstop3h 55mMultiple Airlines
Mon 9/156:24 pmTYS - LAS
1 stop19h 41mMultiple Airlines
Deal found 8/11$217
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/294:40 pmLAS - TYS
Nonstop3h 59mMultiple Airlines
Sun 8/3110:00 amTYS - LAS
1 stop24h 59mMultiple Airlines
Deal found 8/12$220
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:33 amLAS - TYS
Nonstop3h 55mAllegiant Air
Fri 9/191:32 pmTYS - LAS
Nonstop4h 13mAllegiant Air
Deal found 8/13$224
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:05 amLAS - TYS
Nonstop3h 59mMultiple Airlines
Sun 8/249:12 pmTYS - LAS
2 stops27h 55mMultiple Airlines
Deal found 8/13$233

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 August 14, 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

Fri 9/19

3:35 pm-10:30 pm

Nonstop3h 55m

Knoxville McGhee Tyson

Sun 9/28

4:50 pm-6:03 pm

Nonstop4h 13m

$130

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 9/26

3:35 pm-10:30 pm

Nonstop3h 55m

Knoxville McGhee Tyson

Mon 9/29

8:30 am-9:43 am

Nonstop4h 13m

$137

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 8/29

4:40 pm-11:39 pm

Nonstop3h 59m

Knoxville McGhee Tyson

Mon 9/1

1:55 pm-3:16 pm

Nonstop4h 21m

$167

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 9/12

3:35 pm-10:30 pm

Nonstop3h 55m

Knoxville McGhee Tyson

Sun 9/14

7:35 pm-3:26 pm

1 stop22h 51m

$178

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Wed 9/3

9:05 pm-7:50 pm

2 stops19h 45m

Knoxville McGhee Tyson

Mon 9/8

8:35 pm-11:33 pm

1 stop5h 58m

$209

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Mon 9/15

10:33 am-5:28 pm

Nonstop3h 55m

Knoxville McGhee Tyson

Fri 9/19

6:24 pm-2:45 pm

1 stop23h 21m

$212

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Thu 11/13

6:00 am-4:14 pm

1 stop7h 14m

Knoxville McGhee Tyson

Mon 11/17

8:00 am-9:17 am

Nonstop4h 17m

$215

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Wed 9/3

7:24 am-1:43 pm

1 stop27h 19m

Knoxville McGhee Tyson

Mon 9/8

8:30 am-9:43 am

Nonstop4h 13m

$216

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 9/12

3:35 pm-10:30 pm

Nonstop3h 55m

Knoxville McGhee Tyson

Mon 9/15

6:24 pm-11:05 am

1 stop19h 41m

$217

Las VegasKnoxville

LAS - TYS

LASTYS

Las Vegas Harry Reid Intl

Fri 8/29

4:40 pm-11:39 pm

Nonstop3h 59m

Knoxville McGhee Tyson

Sun 8/31

10:00 am-7:59 am

1 stop24h 59m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 21 results
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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 August 8, 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 $294). 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 August 14, 2025.

It’s typically best to fly out from Las Vegas to Knoxville at noon. Doing so could potentially save you 42% 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 August 14, 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
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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
701 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

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.

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

    Currently priced at $137, 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 56% 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 $121. While the most popular route (Las Vegas Harry Reid Intl - Knoxville McGhee Tyson) can be booked for $137 on average our data indicates $272 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 $294). 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$137Average$239FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$243Average$334FlexibilityNo cancel feeOn-time71%
DeltaCheapest$250Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$428FlexibilityNo cancel feeOn-time69%

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