Cheap Flights from Knoxville, TN to Las Vegas, NV from $66

Return flight: Las Vegas – Knoxville

On Cheapflightsplus.com you will find 3 direct and 735 connecting flights from Knoxville to Las Vegas. You can compare airfare deals from 4 airlines and multiple travel sites from $66, book and save on cheap plane tickets and last minute offers. Also check out TYS-LAS flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Knoxville to Las Vegas depends on and how to choose the most interesting flight option for you.

Distance between Knoxville and Las Vegas is 2793 miles. Time difference between the cities is 3h. Airplanes depart 05:05 to 22:05 from 1 Knoxville airport and arrive 05:05 to 22:05 to 1 Las Vegas airport. Average flight time is 4h 15m.

  • The fastest flight 4h 7m
  • Average flight time 4h 15m
  • The earliest flight 05:05
  • The latest flight 22:05
  • Distance 1736 ml

The cheapest months to travel to Las Vegas are october (from 66 $), november (from 66 $), july (from 73 $).

The most expensive months are december (from 197 $), september (from 191 $), june (from 117 $).

What is the lowest airfare Knoxville to Las Vegas?

The cheapest plane ticket found by our users is $66. This airfare is for economy class on one-way F94369 flight by Frontier Airlines for October 20, 2025 which leaves Mc Ghee Tyson in Knoxville at 17:30 am and arrives at Las Vegas Mccarran at 21:24.

Economy class
$66
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Business class
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First class
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Flight Schedule Knoxville (Tennessee) to Las Vegas (Nevada)

06:00 — 23:27
20h 27m flight time
Find flight
from$100
06:00 — 07:15 Knoxville — Phoenix
G41424 Allegiant Air
15h 26m stop
22:24 — 23:36 Phoenix — Las Vegas
G462 Allegiant Air
06:00 — 23:27
20h 27m flight time
Find flight
from$114
06:00 — 06:49 Knoxville — Phoenix
G41420 Allegiant Air
15h 26m stop
22:15 — 23:27 Phoenix — Las Vegas
G462 Allegiant Air
06:38 — 21:09
17h 31m flight time
Find flight
from$117
06:38 — 07:58 Knoxville — Austin
G41410 Allegiant Air
12h 13m stop
20:11 — 21:09 Austin — Las Vegas
NK2628 Spirit Airlines
06:55 — 17:43
13h 48m flight time
Find flight
from$92
06:55 — 08:15 Knoxville — Austin
G41410 Allegiant Air
8h 19m stop
16:34 — 17:43 Austin — Las Vegas
NK1656 Spirit Airlines
11:01 — 15:39
7h 38m flight time
Find flight
from$115
11:01 — 12:19 Knoxville — Minneapolis
G41414 Allegiant Air
1h 59m stop
14:18 — 15:39 Minneapolis — Las Vegas
SY105 Sun Country Airlines
11:01 — 09:51+1day
25h 50m flight time
Find flight
from$115
11:01 — 12:19 Knoxville — Minneapolis
G41414 Allegiant Air
20h 11m stop
08:30 — 09:51 Minneapolis — Las Vegas
SY103 Sun Country Airlines
14:28 — 15:35
4h 7m flight time
Find flight
from$73
Knoxville — Las Vegas
G444 Allegiant Air
14:29 — 15:53
4h 24m flight time
Find flight
from$86
Knoxville — Las Vegas
G443 Allegiant Air
14:30 — 15:45
4h 15m flight time
Find flight
from$189
Knoxville — Las Vegas
G477 Allegiant Air
17:01 — 19:11+1day
29h 10m flight time
Find flight
from$119
17:01 — 18:11 Knoxville — Houston
G43036 Allegiant Air
12h 54m stop
07:05 — 10:09 Houston — Atlanta
NK2170 Spirit Airlines
7h 43m stop
17:52 — 19:11 Atlanta — Las Vegas
NK2572 Spirit Airlines
17:01 — 19:11+1day
29h 10m flight time
Find flight
from$119
17:01 — 18:11 Knoxville — Houston
G43036 Allegiant Air
19h 40m stop
13:51 — 16:57 Houston — Atlanta
NK2571 Spirit Airlines
55m stop
17:52 — 19:11 Atlanta — Las Vegas
NK2572 Spirit Airlines
17:30 — 21:24
6h 54m flight time
Find flight
from$66
19:30 — 20:46 Knoxville — Denver
F94369 Frontier Airlines
1h 23m stop
20:43 — 21:44 Denver — Las Vegas
F94611 Frontier Airlines
17:30 — 23:36
9h 6m flight time
Find flight
from$90
16:19 — 17:48 Knoxville — Denver
F94369 Frontier Airlines
3h 28m stop
07:00 — 08:14 Denver — Las Vegas
F9777 Frontier Airlines
17:30 — 08:01+1day
17h 31m flight time
Find flight
from$113
17:30 — 19:01 Knoxville — Denver
F94369 Frontier Airlines
11h 59m stop
07:00 — 08:01 Denver — Las Vegas
F92015 Frontier Airlines
18:34 — 13:57+1day
22h 23m flight time
Find flight
from$100
18:34 — 18:51 Knoxville — Belleville
G43024 Allegiant Air
17h 33m stop
12:24 — 13:57 Belleville — Las Vegas
G41636 Allegiant Air
Full flight schedule will help you in detecting at what time planes fly from Knoxville to Las Vegas. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 15, 2025.

Popular Airlines on the Route

The flight Knoxville — Las Vegas is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 28 departures per week at the price of from $ 333 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 785.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is G444 by Allegiant Air takes 4h 7m and the cheapest is F94369 by Frontier Airlines for $73.

  • G4 - Allegiant Air
    from $73
    Find
See more direct flights

Connecting Flights

There are 735 flights with layovers on the route. The fastest connecting flight is UA5673 by United Airlines takes 6h 23m and the cheapest is F94369 by Frontier Airlines for $66.

  • AS - Alaska Airlines
    from $333
    Find
  • F9 - Frontier Airlines
    from $66
    Find
  • UA - United Airlines
    from $169
    Find
  • G4 - Allegiant Air
    from $92
    Find
See more connecting flights

Airports

You can fly from Knoxville to Las Vegas from 1 airports (Mc Ghee Tyson).

Knoxville airports

  • Mc Ghee Tyson-TYS
    from $66
    Find

Las Vegas airports

  • Mccarran-LAS
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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