$115 Cheap Flights from Las Vegas (LAS) to Knoxville (TYS)

View $115 flight on Fri, May 30, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Las Vegas to Knoxville (LAS-TYS)

Prices were available within the past 7 days and start at $115 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, May 24 - Thu, May 29
LAS
Las Vegas
TYS
Knoxville
$218 Roundtrip, found 2 days ago
$218
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, May 24 from Las Vegas to Knoxville, returning Thu, May 29, priced at $218 found 2 days ago
American Airlines
Sun, May 25 - Sat, May 31
LAS
Las Vegas
TYS
Knoxville
$229 Roundtrip, found 11 hours ago
$229
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, May 25 from Las Vegas to Knoxville, returning Sat, May 31, priced at $229 found 11 hours ago
American Airlines
Wed, May 21 - Sun, May 25
LAS
Las Vegas
TYS
Knoxville
$230 Roundtrip, found 5 days ago
$230
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, May 21 from Las Vegas to Knoxville, returning Sun, May 25, priced at $230 found 5 days ago
United
Sun, May 25 - Sat, May 31
LAS
Las Vegas
TYS
Knoxville
$232 Roundtrip, found 11 hours ago
$232
Roundtrip
found 11 hours ago
Select United flight, departing Sun, May 25 from Las Vegas to Knoxville, returning Sat, May 31, priced at $232 found 11 hours ago
United
Wed, Jul 2 - Sat, Jul 5
LAS
Las Vegas
TYS
Knoxville
$236 Roundtrip, found 17 hours ago
$236
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Jul 2 from Las Vegas to Knoxville, returning Sat, Jul 5, priced at $236 found 17 hours ago
Delta
Wed, Jul 2 - Sat, Jul 5
LAS
Las Vegas
TYS
Knoxville
$237 Roundtrip, found 17 hours ago
$237
Roundtrip
found 17 hours ago
Select Delta flight, departing Wed, Jul 2 from Las Vegas to Knoxville, returning Sat, Jul 5, priced at $237 found 17 hours ago
Frontier Airlines
Sat, May 31 - Sun, Jun 8
LAS
Las Vegas
TYS
Knoxville
$238 Roundtrip, found 2 days ago
$238
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, May 31 from Las Vegas to Knoxville, returning Sun, Jun 8, priced at $238 found 2 days ago
United
Fri, May 30 - Tue, Jun 3
LAS
Las Vegas
TYS
Knoxville
$240 Roundtrip, found 6 hours ago
$240
Roundtrip
found 6 hours ago
Select United flight, departing Fri, May 30 from Las Vegas to Knoxville, returning Tue, Jun 3, priced at $240 found 6 hours ago
Delta
Wed, May 28 - Sun, Jun 1
LAS
Las Vegas
TYS
Knoxville
$243 Roundtrip, found 5 hours ago
$243
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, May 28 from Las Vegas to Knoxville, returning Sun, Jun 1, priced at $243 found 5 hours ago
Alaska Airlines
Wed, Aug 27 - Wed, Sep 3
LAS
Las Vegas
TYS
Knoxville
$351 Roundtrip, found 5 hours ago
$351
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Wed, Aug 27 from Las Vegas to Knoxville, returning Wed, Sep 3, priced at $351 found 5 hours ago
Flights from Las Vegas (LAS) to Knoxville (TYS)
Origin airport
Harry Reid Intl.
Destination airport
McGhee Tyson
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$218
Distance
1735 mi

Las Vegas to Knoxville Flights

The cheapest times to fly from Las Vegas to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Vegas to Knoxville are during the month of May. You can find some of the cheapest flights from Las Vegas to Knoxville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Las Vegas to Knoxville

Sunday is one of the best days to book for cheap flights from Las Vegas to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Las Vegas to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $115 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Vegas to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Vegas to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS) cost?
Discover the latest flight deals from LAS to TYS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from LAS to TYS?
The cheapest flights from LAS to TYS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from LAS to TYS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from LAS to TYS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
On average, Harry Reid Intl. Airport (LAS) offers 2 direct flights to McGhee Tyson Airport (TYS) every week. If you want more options, take advantage of Expedia’s filters to search for flights with one or more stops. Fit in a quick visit to another city or just break up your journey.
What are the most popular departure times for flights from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
Flights between LAS and TYS are their busiest at 6 AM. If you’re after a more relaxed experience and potentially cheaper prices, choose a departure that’s outside typical rush times.
What day of the week has the most flights from LAS to TYS?
If you depart on a Monday, you’ll get the biggest range of options for flights from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS).
What is the earliest flight from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
The earliest flight out of Harry Reid Intl. Airport (LAS) is at around 6:15AM UTC-8. Board this plane and you’ll touch down at McGhee Tyson Airport (TYS) at approximately 1:08PM UTC-5. The overall travel time is 3h 53m.
How long does it take to fly from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
It takes approximately 3 hours and 53 minutes to fly the 1,750 mi from LAS to TYS.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
Choose a flight from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Knoxville from Harry Reid Intl. Airport (LAS)?
McGhee Tyson Airport (TYS) is the only airport in Knoxville with direct flights from Harry Reid Intl. Airport (LAS). Compare the available options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS) last-minute?
Waiting until right before your break to book your flight from LAS to TYS generally means paying more. While it’s possible to find some last-minute offers, they aren’t always guaranteed. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a LAS to TYS flight and hotel package?
You’ll generally save money by securing a LAS to TYS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. After selecting your ideal flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
In most instances, you can modify or cancel your LAS to TYS flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline’s rules and fees on flight changes, or if you need further information, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.