$126 Cheap Flights from Las Vegas (LAS) to Knoxville (TYS)

View $126 flight on Sat, Sep 6, 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)

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

Prices were available within the past 7 days and start at $126 for one-way flights and $171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 2 - Mon, Oct 6
LAS
Las Vegas
TYS
Knoxville
$171 Roundtrip, found 19 hours ago
$171
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Las Vegas to Knoxville, returning Mon, Oct 6, priced at $171 found 19 hours ago
Frontier Airlines
Thu, Sep 25 - Mon, Sep 29
LAS
Las Vegas
TYS
Knoxville
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Las Vegas to Knoxville, returning Mon, Sep 29, priced at $203 found 1 day ago
Frontier Airlines
Mon, Sep 22 - Mon, Sep 29
LAS
Las Vegas
TYS
Knoxville
$219 Roundtrip, found 2 hours ago
$219
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 22 from Las Vegas to Knoxville, returning Mon, Sep 29, priced at $219 found 2 hours ago
Frontier Airlines
Thu, Sep 25 - Mon, Sep 29
LAS
Las Vegas
TYS
Knoxville
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Las Vegas to Knoxville, returning Mon, Sep 29, priced at $223 found 1 day ago
Frontier Airlines
Mon, Sep 15 - Mon, Sep 22
LAS
Las Vegas
TYS
Knoxville
$234 Roundtrip, found 2 hours ago
$234
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 15 from Las Vegas to Knoxville, returning Mon, Sep 22, priced at $234 found 2 hours ago
Frontier Airlines
Mon, Sep 22 - Mon, Sep 29
LAS
Las Vegas
TYS
Knoxville
$239 Roundtrip, found 2 hours ago
$239
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 22 from Las Vegas to Knoxville, returning Mon, Sep 29, priced at $239 found 2 hours ago
American Airlines
Thu, Sep 4 - Sat, Sep 6
LAS
Las Vegas
TYS
Knoxville
$251 Roundtrip, found 23 hours ago
$251
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Thu, Sep 4 from Las Vegas to Knoxville, returning Sat, Sep 6, priced at $251 found 23 hours ago
Southwest Airlines
Sat, May 9 - Sat, May 16
LAS
Las Vegas
TYS
Knoxville
$256 Roundtrip, found 4 days ago
$256
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sat, May 9 from Las Vegas to Knoxville, returning Sat, May 16, priced at $256 found 4 days ago
Delta
Fri, Oct 31 - Tue, Nov 18
LAS
Las Vegas
TYS
Knoxville
$264 Roundtrip, found 3 days ago
$264
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 31 from Las Vegas to Knoxville, returning Tue, Nov 18, priced at $264 found 3 days ago
United
Tue, Mar 17 - Sat, Mar 21
LAS
Las Vegas
TYS
Knoxville
$271 Roundtrip, found 3 hours ago
$271
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Mar 17 from Las Vegas to Knoxville, returning Sat, Mar 21, priced at $271 found 3 hours ago

Find the cheapest month to fly from Las Vegas (LAS) to Knoxville (TYS)

November is typically the cheapest month to fly

From $157 - $623 per traveler.

Graph displaying average flight prices per month

Alternative airports near Knoxville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McGhee Tyson TYS. Cheapest and Closest option available. Average driving time to city center is 22 minutes. Flights from $234
TYS
McGhee Tyson
CheapestClosest
Average driving time to city center22 min
Flights from $234
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, Southwest Airlines, United
Roundtrip price
$171
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 October. 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 $126 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?
Get a cheap one-way flight from $126 or cheap return flight from $171 from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
The cheapest month to fly from LAS to TYS is October, when demand is low. Off-peak season is often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to McGhee Tyson Airport (TYS)?
To find the cheapest airline that'll fly you from LAS to TYS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
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.

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*Available to One Key members.