Cheap Flights from Knoxville, TN to Las Vegas, NV from $65

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 $65, 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.

Find One-Way and Round-Trip Knoxville to Las Vegas Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $65 (one-way), $111 (round-trip).
Direct flights
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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 Arrival Flight Details Flight Duration Price
06:00 — 23:27
06:00 — 07:15 G41424 Allegiant Air
Knoxville — Phoenix
15h 26m stop
22:24 — 23:36 G462 Allegiant Air
Phoenix — Las Vegas
20h 27m
including layover
Find flight
from$98
06:00 — 23:27
06:00 — 06:49 G41420 Allegiant Air
Knoxville — Phoenix
15h 26m stop
22:15 — 23:27 G462 Allegiant Air
Phoenix — Las Vegas
20h 27m
including layover
Find flight
from$112
06:38 — 21:09
06:38 — 07:58 G41410 Allegiant Air
Knoxville — Austin
12h 13m stop
20:11 — 21:09 NK2628 Spirit Airlines
Austin — Las Vegas
17h 31m
including layover
Find flight
from$115
06:55 — 17:43
06:55 — 08:15 G41410 Allegiant Air
Knoxville — Austin
8h 19m stop
16:34 — 17:43 NK1656 Spirit Airlines
Austin — Las Vegas
13h 48m
including layover
Find flight
from$90
11:01 — 15:39
11:01 — 12:19 G41414 Allegiant Air
Knoxville — Minneapolis
1h 59m stop
14:18 — 15:39 SY105 Sun Country Airlines
Minneapolis — Las Vegas
7h 38m
including layover
Find flight
from$113
11:01 — 09:51
+1 day
11:01 — 12:19 G41414 Allegiant Air
Knoxville — Minneapolis
20h 11m stop
08:30 — 09:51 SY103 Sun Country Airlines
Minneapolis — Las Vegas
25h 50m
including layover
Find flight
from$113
14:28 — 15:35
14:28 — 15:35 G444 Allegiant Air
Knoxville — Las Vegas
4h 7m
Find flight
from$71
14:29 — 15:53
14:29 — 15:53 G443 Allegiant Air
Knoxville — Las Vegas
4h 24m
Find flight
from$84
14:30 — 15:45
14:30 — 15:45 G477 Allegiant Air
Knoxville — Las Vegas
4h 15m
Find flight
from$185
17:01 — 19:11
+1 day
17:01 — 18:11 G43036 Allegiant Air
Knoxville — Houston
12h 54m stop
07:05 — 10:09 NK2170 Spirit Airlines
Houston — Atlanta
7h 43m stop
17:52 — 19:11 NK2572 Spirit Airlines
Atlanta — Las Vegas
29h 10m
including layover
Find flight
from$116
17:01 — 19:11
+1 day
17:01 — 18:11 G43036 Allegiant Air
Knoxville — Houston
19h 40m stop
13:51 — 16:57 NK2571 Spirit Airlines
Houston — Atlanta
55m stop
17:52 — 19:11 NK2572 Spirit Airlines
Atlanta — Las Vegas
29h 10m
including layover
Find flight
from$116
17:30 — 21:24
19:30 — 20:46 F94369 Frontier Airlines
Knoxville — Denver
1h 23m stop
20:43 — 21:44 F94611 Frontier Airlines
Denver — Las Vegas
6h 54m
including layover
Find flight
from$65
17:30 — 23:36
16:19 — 17:48 F94369 Frontier Airlines
Knoxville — Denver
3h 28m stop
07:00 — 08:14 F9777 Frontier Airlines
Denver — Las Vegas
9h 6m
including layover
Find flight
from$88
17:30 — 08:01
+1 day
17:30 — 19:01 F94369 Frontier Airlines
Knoxville — Denver
11h 59m stop
07:00 — 08:01 F92015 Frontier Airlines
Denver — Las Vegas
17h 31m
including layover
Find flight
from$111
18:34 — 13:57
+1 day
18:34 — 18:51 G43024 Allegiant Air
Knoxville — Belleville
17h 33m stop
12:24 — 13:57 G41636 Allegiant Air
Belleville — Las Vegas
22h 23m
including layover
Find flight
from$98
*Departure and arrival times - local. Updated on September 15, 2025

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 november (from 65 $), september (from 65 $), july (from 71 $).

The most expensive months are december (from 193 $), october (from 151 $), june (from 115 $).

What is the lowest airfare Knoxville to Las Vegas?

The cheapest plane ticket found by our users is $65. This airfare is for economy class on one-way F94369 flight by Frontier Airlines for September 22, 2025 which leaves Mc Ghee Tyson in Knoxville at 17:30 am and arrives at Las Vegas Mccarran at 21:24.

Economy class
$65
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Business class
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First class
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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 $ 326 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 768.

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 $71.

  • G4 - Allegiant Air
    from $71
    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 $65.

  • AS - Alaska Airlines
    from $326
    Find
  • F9 - Frontier Airlines
    from $65
    Find
  • UA - United Airlines
    from $165
    Find
  • G4 - Allegiant Air
    from $90
    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 $65
    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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