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Cheap Flights from Knoxville to Las Vegas

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Knoxville

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Prices updated 24 days ago

486,190 searches this week

171 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Knoxville to Las Vegas

Explore current cheapest deals departing from Knoxville to Las Vegas

Round trip

Sort by: Cheapest

August 24 - September 11

Cheapest

TYS - Las Vegas

$217

$150

Round trip

November 9 - November 13

Best

TYS - Las Vegas

$305

$159

Round trip

August 7 - August 14

Earliest

TYS - Las Vegas

$240

$162

Round trip

August 24 - September 18

TYS - Las Vegas

$212

$164

Round trip

August 24 - August 28

TYS - Las Vegas

$251

$164

Round trip

September 14 - September 18

TYS - Las Vegas

$237

$165

Round trip

August 24 - August 31

TYS - Las Vegas

$243

$166

Round trip

August 17 - August 21

TYS - Las Vegas

$252

$166

Round trip

October 19 - October 29

TYS - Las Vegas

$260

$167

Round trip

October 12 - October 29

TYS - Las Vegas

$248

$167

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Knoxville to Las Vegas

Most itineraries for cheap flights from Knoxville to Las Vegas connect at least once, with only 38.1% of recent fares being non-stop. When connecting, you can expect a median of 2 stopovers on the journey.

A typical journey from Knoxville to Las Vegas takes about 14h 45m, including connections. This duration accounts for the fact that most flights on this route involve at least one stopover.

If you are looking for the cheapest time to fly from Knoxville to Las Vegas, you will find that October and September are the most affordable months, both with a median fare of $153. August also offers competitive pricing, with a median fare of $173.

Fares for this route typically range from $163–$851, with a median of $537. Right now, current fares are above the typical level for this route. Approximately 17% of recent fares were classified as a good price. New deals appear almost daily, suggesting frequent opportunities to find competitive pricing.

The distance between Knoxville and Las Vegas is 2793 km, classifying this as a medium-haul route. This distance means you are traveling a significant but not extreme length, often involving a layover.

How much is a round trip from Knoxville to Las Vegas

Regular price: $181 - $437

Prices are currently below the regular range.

The regular price range for flights from Knoxville to Las Vegas is $181 to $437. The current lowest deal is $150 with Allegiant Air, for travel from Aug 24-Sep 11.

now $150

Low $181

High $437

The cheapest time to fly from Knoxville to Las Vegas

The cheapest month to fly from TYS to LAS is September, with a median price of $153. The most expensive month is May, with a median price of $1709. Prices are generally lower from April to December.

September

Cheapest

Flights from $153

May

Most Expensive

Flights from $1,709

Jan

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Knoxville to Las Vegas

Allegiant Air

Last-minute flights going from Knoxville to Las Vegas

Wed, Jun 17

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Frontier Airlines

$984

$488

One-way

Fri, Jun 19

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Frontier Airlines

$992

$450

One-way

Fri, Jun 19

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Frontier Airlines

$844

$450

One-way

Fri, Jun 19

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Allegiant Air

$982

$536

One-way

Sun, Jun 21

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Allegiant Air

$939

$567

One-way

Mon, Jun 22

⌛ Last-Minute

TYS - Las Vegas

Knoxville (TYS) - Las Vegas (LAS)

Frontier Airlines

$808

$415

One-way

Biggest price drops on these dates for flights from Knoxville to Las Vegas

2 nights

Jun 19 - Jun 21

$992 → $450

55%

4 nights

Jun 17 - Jun 21

$984 → $488

50%

3 nights

Jun 19 - Jun 22

$982 → $536

45%

3 nights

Jun 26 - Jun 29

$823 → $420

49%

Popular Airports to fly from Knoxville to Las Vegas

Knoxville - Las Vegas route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares from Knoxville to Las Vegas are above the typical level, with a median price of $537.

📅 Best time to fly

Fly in October, September, or August for the best prices.

Historically, the cheapest months to fly are October, September, and August, with median prices around $153-$173.

⏱️ Flight duration

Connecting flights typically take 14h 45m.

The median flight duration for connecting flights from Knoxville to Las Vegas is 14 hours and 45 minutes.

✈️ Airlines & availability

Connecting flights are dominant for this route.

Connecting flights make up 38.1% of deals, with a median of 2 stopovers when connecting.

🏆 Airline highlight

Allegiant Air offers direct flights.

Allegiant Air is an airline offering direct flights on the Knoxville to Las Vegas route.

🎯 Booking tip

Deals are frequent for this route.

Historically, deals for flights from Knoxville to Las Vegas appear frequently, averaging 1.03 deals per day.

Knoxville main airports to depart from

McGhee Tyson (TYS)

Cheapest

McGhee Tyson Airport (TYS) is a good option for flights from Knoxville to Las Vegas.

📍 ~20 km from Knoxville (reachable by car)

💸 Flights from ~$150

Las Vegas main airports to arrive at

Harry Reid International Airport (LAS)

Cheapest

Harry Reid International Airport is the primary airport for flights arriving in Las Vegas.

📍 ~8 km from Las Vegas (reachable by car)

💸 Flights from ~$150

Airports nearby Las Vegas used as alternative

Ontario International (ONT)

This airport is a major regional hub with extensive domestic flight options, significantly less congested than LAX.

📍 ~370 km from Las Vegas (requires a drive of approximately 3 to 4 hours depending on traffic)

💸 Flights from ~$225

St. George Regional (SGU)

This airport is geographically the closest alternative to Las Vegas, offering very easy access via the I-15 corridor.

📍 ~190 km from Las Vegas (reachable by car)

💸 Flights from ~$475

Palm Springs International (PSP)

This reliable mid-sized airport offers good connectivity to West Coast hubs and a generally pleasant passenger experience.

📍 ~360 km from Las Vegas (reachable by car)

💸 Flights from ~$225

Hollywood Burbank (BUR)

This airport is renowned for efficiency and quick terminal-to-gate times, excellent for reaching the Los Angeles basin.

📍 ~390 km from Las Vegas (distance from Las Vegas is substantial)

💸 Flights from ~$252

Phoenix Sky Harbor International (PHX)

Cheapest

This massive international hub offers routes that may not be available at LAS, with high reliability and numerous backup options.

📍 ~430 km from Las Vegas (significant driving distance through desert terrain)

💸 Flights from ~$147

Business & First Class Flight Deals to Las Vegas

47% AI deal score

$3,208

From TYS

Elite

Dec 03

Las Vegas, United States

46% AI deal score

$10,211

From TYS

Elite

Dec 11

Las Vegas, United States

46% AI deal score

$10,614

From TYS

Elite

Dec 04

Las Vegas, United States

46% AI deal score

$11,077

From TYS

Elite

Dec 06

Las Vegas, United States

46% AI deal score

$12,708

From TYS

Elite

Jul 16

Las Vegas, United States

45% AI deal score

$3,195

Frequently Asked Questions About Flights to Las Vegas

Historically, the best time to purchase tickets for flights from Knoxville to Las Vegas is 60+ days before departure. Across the trailing quarter, prices averaged around $290 for tickets bought in this window. In contrast, tickets purchased 7-13 days out typically cost significantly more, with an average price of $1540. Planning ahead by at least two months can lead to substantial savings on this route.

Based on pricing data from the trailing 90 days, a good price for a flight from Knoxville to Las Vegas is $163. This threshold represents the lowest 25% of prices observed for this route. The median price for flights on this route was $537, with 75% of prices falling below $851. Travelers aiming for a good deal should target prices at or below $163.

Historically, the cheapest months to fly from Knoxville to Las Vegas are October and September, both with a median price of $153. August also offers competitive pricing, with a median of $173. These months are typically more affordable than the annual median price of $537 for this route. Travelers looking for the lowest fares should consider planning their trips during these periods.

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Cheap Flights from Knoxville to Las Vegas

Today’s best flight deals from Knoxville to Las Vegas

Unlock all 500+ flight deals to Las Vegas and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Knoxville to Las Vegas

How much is a round trip from Knoxville to Las Vegas

The cheapest time to fly from Knoxville to Las Vegas

Direct flights from Knoxville to Las Vegas

Last-minute flights going from Knoxville to Las Vegas

Biggest price drops on these dates for flights from Knoxville to Las Vegas

Popular Airports to fly from Knoxville to Las Vegas

Knoxville - Las Vegas route insights

Recent fares are above the typical level.

Fly in October, September, or August for the best prices.

Connecting flights typically take 14h 45m.

Connecting flights are dominant for this route.

Allegiant Air offers direct flights.

Deals are frequent for this route.

Knoxville main airports to depart from

Las Vegas main airports to arrive at

Airports nearby Las Vegas used as alternative

Business & First Class Flight Deals to Las Vegas

Best Elite deals to Las Vegas

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Frequently Asked Questions About Flights to Las Vegas

When should I buy Knoxville to Las Vegas tickets?

When should I buy Knoxville to Las Vegas tickets?

What is a good price for a flight from Knoxville to Las Vegas?

What is a good price for a flight from Knoxville to Las Vegas?

When is the cheapest time of year to fly from Knoxville to Las Vegas?

When is the cheapest time of year to fly from Knoxville to Las Vegas?

How many flights from Knoxville to Las Vegas are non-stop?

How many flights from Knoxville to Las Vegas are non-stop?

How long does it take to fly from Knoxville to Las Vegas?

How long does it take to fly from Knoxville to Las Vegas?

Should I set a price alert for Knoxville to Las Vegas flights?

Should I set a price alert for Knoxville to Las Vegas flights?

Related routes

Consider alternative routes from Knoxville