Southwest® flights from Buffalo/Niagara Falls to San Francisco from $160

Promo Code

Low fares from Buffalo/Niagara Falls to San Francisco

$

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 10/24/2026

One-way

Basic

From
$160
Seen: 16 hrs ago

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 12/13/2026

One-way

Basic

From
$160
Seen: 16 hrs ago

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 12/04/2026

One-way

Basic

From
$160
Seen: 3 hrs ago

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 12/02/2026

One-way

Basic

From
$160
Seen: 6 hrs ago

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 01/06/2027

One-way

Basic

From
$160
Seen: 23 hrs ago

Buffalo/Niagara Falls (BUF)to

San Francisco (SFO)
Depart: 10/31/2026

One-way

Basic

From
$160
Seen: 4 hrs ago

Looking for more low-fare flights?

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.

Find low fares

Explore flights from Buffalo/Niagara Falls to San Francisco

Oct 2026
From$160*
Seen: 16 hrs ago
One Way/Basic
Nov 2026
From$198*
Seen: 11 hrs ago
One Way/Basic
Dec 2026
From$160*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $160
cmp-daily-histogram-bars-legend-max-price-aria-label $433
Displaying fares for October-2026
  • BUF–SFO, 10/01/2026: From $350
    01

    Thu

    OCT

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • BUF–SFO, 10/06/2026: From $285
    06

    Tue

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

  • BUF–SFO, 10/08/2026: From $330
    08

    Thu

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • BUF–SFO, 10/12/2026: From $350
    12

    Mon

  • BUF–SFO, 10/13/2026: From $250
    13

    Tue

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

    Wed

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

    Thu

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

    Fri

  • BUF–SFO, 10/17/2026: From $229
    17

    Sat

  • BUF–SFO, 10/18/2026: From $433
    18

    Sun

  • BUF–SFO, 10/19/2026: From $229
    19

    Mon

  • BUF–SFO, 10/20/2026: From $229
    20

    Tue

  • BUF–SFO, 10/21/2026: From $172
    21

    Wed

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

    Thu

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • BUF–SFO, 10/24/2026: From $160
    24

    Sat

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

    Sun

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

    Mon

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

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

    Wed

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    29

    Thu

  • BUF–SFO: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

  • BUF–SFO, 10/31/2026: From $160
    31

    Sat

    • Range$160-$433

    *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:
    San Francisco International Airport
    Distance:
    2309 miles

    Route Information

    83† 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 83 weekly flights from Buffalo/Niagara Falls to San Francisco on Southwest Airlines.
    To find the lowest fares by day and time to fly Buffalo/Niagara Falls to San Francisco with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Francisco International Airport book yours with your flight.
    Yes! Flights from Buffalo/Niagara Falls to San Francisco—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Buffalo/Niagara Falls