Southwest® flights from Portland, OR to Buffalo/Niagara Falls from $129

Promo Code

Low fares from Portland, OR to Buffalo/Niagara Falls

$

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 01/07/2027

One-way

Basic

From
$129
Seen: 17 hrs ago

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 01/06/2027

One-way

Basic

From
$129
Seen: 18 hrs ago

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 01/10/2027

One-way

Basic

From
$169
Seen: 3 hrs ago

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 12/06/2026

One-way

Basic

From
$169
Seen: 1 hour ago

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 01/06/2027

One-way

Choice

From
$182
Seen: 18 hrs ago

Portland, OR (PDX)to

Buffalo/Niagara Falls (BUF)
Depart: 01/07/2027

One-way

Choice

From
$182
Seen: 17 hrs ago

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Oct 2026
No result for this month.
Nov 2026
From$242*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$169*
Seen: 1 hour ago
One Way/Basic
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    • *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:
    Portland International Airport
    Arriving at:
    Buffalo Niagara International Airport
    Distance:
    2157 miles

    Questions we hear the most

    There are 54 weekly flights from Portland, OR to Buffalo/Niagara Falls on Southwest Airlines.
    To find the lowest fares by day and time to fly Portland, OR 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 Portland, OR 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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