Southwest® flights from Baltimore/Washington to Buffalo/Niagara Falls from $99

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Low fares from Baltimore/Washington to Buffalo/Niagara Falls

$

Baltimore/Washington (BWI)to

Buffalo/Niagara Falls (BUF)
Depart: 09/11/2026

One-way

Basic

From
$99
Seen: 11 hrs ago

Baltimore/Washington (BWI)to

Buffalo/Niagara Falls (BUF)
Depart: 09/24/2026

One-way

Basic

From
$128
Seen: 22 hrs ago

Baltimore/Washington (BWI)to

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

One-way

Basic

From
$128
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

Buffalo/Niagara Falls (BUF)
Depart: 08/26/2026

One-way

Basic

From
$128
Seen: 17 hrs ago

Baltimore/Washington (BWI)to

Buffalo/Niagara Falls (BUF)
Depart: 09/14/2026

One-way

Basic

From
$128
Seen: 18 hrs ago

Baltimore/Washington (BWI)to

Buffalo/Niagara Falls (BUF)
Depart: 08/22/2026

One-way

Basic

From
$128
Seen: 2 hrs ago

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Explore flights from Baltimore/Washington to Buffalo/Niagara Falls

Aug 2026
From$128*
Seen: 2 hrs ago
One Way/Basic
Sep 2026
From$99*
Seen: 11 hrs ago
One Way/Basic
Oct 2026
From$128*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $128
cmp-daily-histogram-bars-legend-max-price-aria-label $403
Displaying fares for August-2026
  • BWI–BUF, 08/01/2026: From $403
    01

    Sat

    AUG

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    02

    Sun

  • BWI–BUF, 08/03/2026: From $403
    03

    Mon

  • BWI–BUF, 08/04/2026: From $403
    04

    Tue

  • BWI–BUF, 08/05/2026: From $403
    05

    Wed

  • BWI–BUF, 08/06/2026: From $403
    06

    Thu

  • BWI–BUF, 08/07/2026: From $329
    07

    Fri

  • BWI–BUF, 08/08/2026: From $329
    08

    Sat

  • BWI–BUF, 08/09/2026: From $329
    09

    Sun

  • BWI–BUF, 08/10/2026: From $329
    10

    Mon

  • BWI–BUF, 08/11/2026: From $329
    11

    Tue

  • BWI–BUF, 08/12/2026: From $329
    12

    Wed

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

    Thu

  • BWI–BUF: cmp-view-offers-disclaimer. Find Offers
    14

    Fri

  • BWI–BUF, 08/15/2026: From $228
    15

    Sat

  • BWI–BUF, 08/16/2026: From $228
    16

    Sun

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

    Mon

  • BWI–BUF: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

  • BWI–BUF, 08/19/2026: From $228
    19

    Wed

  • BWI–BUF, 08/20/2026: From $228
    20

    Thu

  • BWI–BUF, 08/21/2026: From $187
    21

    Fri

  • BWI–BUF, 08/22/2026: From $128
    22

    Sat

  • BWI–BUF, 08/23/2026: From $187
    23

    Sun

  • BWI–BUF, 08/24/2026: From $128
    24

    Mon

  • BWI–BUF, 08/25/2026: From $128
    25

    Tue

  • BWI–BUF, 08/26/2026: From $128
    26

    Wed

  • BWI–BUF, 08/27/2026: From $128
    27

    Thu

  • BWI–BUF, 08/28/2026: From $153
    28

    Fri

  • BWI–BUF, 08/29/2026: From $128
    29

    Sat

  • BWI–BUF, 08/30/2026: From $187
    30

    Sun

  • BWI–BUF: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

    • Range$128-$403

    *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:
    Balt./Wash. International Airport
    Arriving at:
    Buffalo Niagara International Airport
    Average flight time:
    1 hour 14 minutes
    Distance:
    281 miles

    Route Information

    29† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 4‡ Nonstop flights on Saturday
    • 5‡ Nonstop flights 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 Baltimore/Washington to Buffalo/Niagara Falls is 1 hour 14 minutes.
    There are 29 weekly flights from Baltimore/Washington to Buffalo/Niagara Falls on Southwest Airlines.
    Yes, Southwest flies nonstop from Baltimore/Washington to Buffalo/Niagara Falls 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Baltimore/Washington to Buffalo/Niagara Falls 4 times per day on Saturdays and 5 times per day on Sundays.
    To find the lowest fares by day and time to fly Baltimore/Washington 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 Baltimore/Washington 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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