Southwest® flights from Buffalo/Niagara Falls to Las Vegas from $142

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Low fares from Buffalo/Niagara Falls to Las Vegas

$

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/06/2026

One-way

Basic

From
$142
Seen: 1 minutes ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/04/2026

One-way

Basic

From
$171
Seen: 23 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 10/20/2026

One-way

Basic

From
$171
Seen: 12 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 12/07/2026

One-way

Basic

From
$171
Seen: 20 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/05/2026

One-way

Basic

From
$171
Seen: 15 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 10/11/2026

One-way

Basic

From
$171
Seen: 19 hrs ago

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Explore flights from Buffalo/Niagara Falls to Las Vegas

Sep 2026
From$194*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$171*
Seen: 16 hrs ago
One Way/Basic
Nov 2026
From$142*
Seen: 46 seconds ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $171
cmp-daily-histogram-bars-legend-max-price-aria-label $510
Displaying fares for September-2026
  • BUF–LAS, 09/10/2026: From $294
    10

    Thu

    SEP

  • BUF–LAS, 09/11/2026: From $294
    11

    Fri

  • BUF–LAS, 09/12/2026: From $210
    12

    Sat

  • BUF–LAS, 09/13/2026: From $215
    13

    Sun

  • BUF–LAS, 09/14/2026: From $280
    14

    Mon

  • BUF–LAS, 09/15/2026: From $210
    15

    Tue

  • BUF–LAS, 09/16/2026: From $210
    16

    Wed

  • BUF–LAS: cmp-view-offers-disclaimer. Find Offers
    17

    Thu

  • BUF–LAS, 09/18/2026: From $450
    18

    Fri

  • BUF–LAS, 09/19/2026: From $210
    19

    Sat

  • BUF–LAS, 09/20/2026: From $450
    20

    Sun

  • BUF–LAS, 09/21/2026: From $280
    21

    Mon

  • BUF–LAS: cmp-view-offers-disclaimer. Find Offers
    22

    Tue

  • BUF–LAS, 09/23/2026: From $210
    23

    Wed

  • BUF–LAS, 09/24/2026: From $285
    24

    Thu

  • BUF–LAS: cmp-view-offers-disclaimer. Find Offers
    25

    Fri

  • BUF–LAS, 09/26/2026: From $210
    26

    Sat

  • BUF–LAS, 09/27/2026: From $280
    27

    Sun

  • BUF–LAS, 09/28/2026: From $510
    28

    Mon

  • BUF–LAS, 09/29/2026: From $280
    29

    Tue

  • BUF–LAS, 09/30/2026: From $194
    30

    Wed

  • BUF–LAS, 10/01/2026: From $271
    01

    Thu

    OCT

  • BUF–LAS, 10/02/2026: From $171
    02

    Fri

  • BUF–LAS, 10/03/2026: From $171
    03

    Sat

  • BUF–LAS, 10/04/2026: From $280
    04

    Sun

  • BUF–LAS, 10/05/2026: From $171
    05

    Mon

  • BUF–LAS, 10/06/2026: From $171
    06

    Tue

  • BUF–LAS, 10/07/2026: From $189
    07

    Wed

  • BUF–LAS, 10/08/2026: From $271
    08

    Thu

  • BUF–LAS, 10/09/2026: From $276
    09

    Fri

    • Range$171-$510

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Buffalo Niagara International Airport
    Arriving at:
    McCarran International Airport
    Average flight time:
    4 hours 54 minutes
    Distance:
    1986 miles

    Route Information

    151† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from Buffalo/Niagara Falls to Las Vegas is 4 hours 54 minutes.
    There are 151 weekly flights from Buffalo/Niagara Falls to Las Vegas on Southwest Airlines.
    Yes, Southwest flies nonstop from Buffalo/Niagara Falls to Las Vegas once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Buffalo/Niagara Falls to Las Vegas once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Buffalo/Niagara Falls to Las Vegas with Southwest, check out our Low Fare Calendar.
    You can rent a car at McCarran International Airport book yours with your flight.
    Yes! Flights from Buffalo/Niagara Falls to Las Vegas—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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