Southwest® flights from Buffalo/Niagara Falls to Las Vegas from $171

Promo Code

Low fares from Buffalo/Niagara Falls to Las Vegas

$

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/03/2026

One-way

Basic

From
$171
Seen: 21 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/23/2026

One-way

Basic

From
$179
Seen: 20 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 10/31/2026

One-way

Basic

From
$179
Seen: 1 hour ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 10/27/2026

One-way

Basic

From
$179
Seen: 16 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 10/28/2026

One-way

Basic

From
$179
Seen: 21 hrs ago

Buffalo/Niagara Falls (BUF)to

Las Vegas (LAS)
Depart: 11/21/2026

One-way

Basic

From
$179
Seen: 8 hrs ago

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Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

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Explore flights from Buffalo/Niagara Falls to Las Vegas

Aug 2026
From$294*
Seen: 21 hrs ago
One Way/Basic
Sep 2026
From$184*
Seen: 18 hrs ago
One Way/Basic
Oct 2026
From$179*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $184
cmp-daily-histogram-bars-legend-max-price-aria-label $567
Displaying fares for August-2026
  • BUF–LAS, 08/18/2026: From $294
    18

    Tue

    AUG

  • BUF–LAS, 08/19/2026: From $567
    19

    Wed

  • BUF–LAS, 08/20/2026: From $567
    20

    Thu

  • BUF–LAS, 08/21/2026: From $567
    21

    Fri

  • BUF–LAS, 08/22/2026: From $457
    22

    Sat

  • BUF–LAS, 08/23/2026: From $567
    23

    Sun

  • BUF–LAS, 08/24/2026: From $567
    24

    Mon

  • BUF–LAS, 08/25/2026: From $460
    25

    Tue

  • BUF–LAS, 08/26/2026: From $460
    26

    Wed

  • BUF–LAS, 08/27/2026: From $460
    27

    Thu

  • BUF–LAS, 08/28/2026: From $460
    28

    Fri

  • BUF–LAS, 08/29/2026: From $460
    29

    Sat

  • BUF–LAS, 08/30/2026: From $460
    30

    Sun

  • BUF–LAS, 08/31/2026: From $460
    31

    Mon

  • BUF–LAS, 09/01/2026: From $338
    01

    Tue

    SEP

  • BUF–LAS, 09/02/2026: From $338
    02

    Wed

  • BUF–LAS, 09/03/2026: From $338
    03

    Thu

  • BUF–LAS, 09/04/2026: From $338
    04

    Fri

  • BUF–LAS, 09/05/2026: From $338
    05

    Sat

  • BUF–LAS, 09/06/2026: From $338
    06

    Sun

  • BUF–LAS, 09/07/2026: From $338
    07

    Mon

  • BUF–LAS, 09/08/2026: From $256
    08

    Tue

  • BUF–LAS, 09/09/2026: From $184
    09

    Wed

  • BUF–LAS, 09/10/2026: From $184
    10

    Thu

  • BUF–LAS, 09/11/2026: From $201
    11

    Fri

  • BUF–LAS, 09/12/2026: From $184
    12

    Sat

  • BUF–LAS, 09/13/2026: From $316
    13

    Sun

  • BUF–LAS, 09/14/2026: From $211
    14

    Mon

  • BUF–LAS, 09/15/2026: From $184
    15

    Tue

  • BUF–LAS, 09/16/2026: From $184
    16

    Wed

  • BUF–LAS, 09/17/2026: From $343
    17

    Thu

    • Range$184-$567

    *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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