Southwest® flights from Austin to Buffalo/Niagara Falls from $178

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Low fares from Austin to Buffalo/Niagara Falls

$

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/14/2026

One-way

Basic

From
$178
Seen: 21 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/21/2026

One-way

Basic

From
$178
Seen: 11 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/27/2026

One-way

Basic

From
$178
Seen: 9 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/05/2026

One-way

Basic

From
$178
Seen: 38 minutes ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/06/2026

One-way

Basic

From
$178
Seen: 17 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 10/28/2026

One-way

Basic

From
$178
Seen: 8 hrs ago

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Explore flights from Austin to Buffalo/Niagara Falls

Sep 2026
From$289*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$178*
Seen: 17 hrs ago
One Way/Basic
Nov 2026
From$216*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $178
cmp-daily-histogram-bars-legend-max-price-aria-label $559
Displaying fares for September-2026
  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    SEP

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • AUS–BUF, 09/14/2026: From $549
    14

    Mon

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

  • AUS–BUF, 09/17/2026: From $559
    17

    Thu

  • AUS–BUF, 09/18/2026: From $464
    18

    Fri

  • AUS–BUF, 09/19/2026: From $464
    19

    Sat

  • AUS–BUF, 09/20/2026: From $464
    20

    Sun

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

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

    Tue

  • AUS–BUF, 09/23/2026: From $289
    23

    Wed

  • AUS–BUF, 09/24/2026: From $289
    24

    Thu

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

    Fri

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • AUS–BUF, 09/27/2026: From $289
    27

    Sun

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • AUS–BUF, 09/29/2026: From $289
    29

    Tue

  • AUS–BUF, 09/30/2026: From $289
    30

    Wed

  • AUS–BUF, 10/01/2026: From $259
    01

    Thu

    OCT

  • AUS–BUF, 10/02/2026: From $203
    02

    Fri

  • AUS–BUF, 10/03/2026: From $216
    03

    Sat

  • AUS–BUF, 10/04/2026: From $249
    04

    Sun

  • AUS–BUF, 10/05/2026: From $178
    05

    Mon

  • AUS–BUF, 10/06/2026: From $178
    06

    Tue

  • AUS–BUF, 10/07/2026: From $183
    07

    Wed

  • AUS–BUF, 10/08/2026: From $264
    08

    Thu

  • AUS–BUF, 10/09/2026: From $264
    09

    Fri

  • AUS–BUF, 10/10/2026: From $234
    10

    Sat

    • Range$178-$559

    *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:
    Austin-Bergstrom International Airport
    Arriving at:
    Buffalo Niagara International Airport
    Distance:
    1366 miles

    Route Information

    146† Weekly flights

    † 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

    There are 146 weekly flights from Austin to Buffalo/Niagara Falls on Southwest Airlines.
    To find the lowest fares by day and time to fly Austin to Buffalo/Niagara Falls with Southwest, check out our Low Fare Calendar.
    You can rent a car at Buffalo Niagara International Airport book yours with your flight.
    Yes! Flights from Austin to Buffalo/Niagara Falls—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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