Southwest® flights from Austin to Buffalo/Niagara Falls from $135

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Low fares from Austin to Buffalo/Niagara Falls

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Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 11/12/2026

One-way

Basic

From
$135
Seen: 16 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 01/04/2027

One-way

Basic

From
$135
Seen: 14 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 12/08/2026

One-way

Basic

From
$135
Seen: 18 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 12/09/2026

One-way

Basic

From
$135
Seen: 2 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 11/14/2026

One-way

Basic

From
$135
Seen: 3 hrs ago

Austin (AUS)to

Buffalo/Niagara Falls (BUF)
Depart: 11/11/2026

One-way

Basic

From
$140
Seen: 7 minutes ago

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Explore flights from Austin to Buffalo/Niagara Falls

Oct 2026
From$484*
Seen: 10 hrs ago
One Way/Basic
Nov 2026
From$135*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$135*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $135
cmp-daily-histogram-bars-legend-max-price-aria-label $569
Displaying fares for October-2026
  • AUS–BUF, 10/20/2026: From $569
    20

    Tue

    OCT

  • AUS–BUF, 10/21/2026: From $569
    21

    Wed

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    Thu

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    23

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    24

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    25

    Sun

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    26

    Mon

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    27

    Tue

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    28

    Wed

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    29

    Thu

  • AUS–BUF, 10/30/2026: From $484
    30

    Fri

  • AUS–BUF, 10/31/2026: From $484
    31

    Sat

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

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    02

    Mon

  • AUS–BUF, 11/03/2026: From $309
    03

    Tue

  • AUS–BUF, 11/04/2026: From $309
    04

    Wed

  • AUS–BUF, 11/05/2026: From $309
    05

    Thu

  • AUS–BUF, 11/06/2026: From $309
    06

    Fri

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    07

    Sat

  • AUS–BUF: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

  • AUS–BUF, 11/09/2026: From $140
    09

    Mon

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    10

    Tue

  • AUS–BUF, 11/11/2026: From $140
    11

    Wed

  • AUS–BUF, 11/12/2026: From $135
    12

    Thu

  • AUS–BUF, 11/13/2026: From $161
    13

    Fri

  • AUS–BUF, 11/14/2026: From $135
    14

    Sat

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

    Sun

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    16

    Mon

  • AUS–BUF, 11/17/2026: From $165
    17

    Tue

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    18

    Wed

  • AUS–BUF, 11/19/2026: From $244
    19

    Thu

    • Range$135-$569

    *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

    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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