Southwest® flights from Grand Rapids to Buffalo/Niagara Falls from $210

Promo Code

Low fares from Grand Rapids to Buffalo/Niagara Falls

$

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/20/2026

One-way

Basic

From
$210
Seen: 8 hrs ago

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/20/2026

One-way

Choice

From
$239
Seen: 8 hrs ago

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/03/2026

One-way

Choice

From
$271
Seen: 3 hrs ago

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/20/2026

One-way

Choice Preferred

From
$309
Seen: 8 hrs ago

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/03/2026

One-way

Choice Preferred

From
$341
Seen: 3 hrs ago

Grand Rapids (GRR)to

Buffalo/Niagara Falls (BUF)
Depart: 03/20/2026

One-way

Choice Extra

From
$349
Seen: 8 hrs ago

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Explore flights from Grand Rapids to Buffalo/Niagara Falls

*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:
Kent County International Airport
Arriving at:
Buffalo Niagara International Airport
Distance:
345 miles

Route Information

54† 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 54 weekly flights from Grand Rapids to Buffalo/Niagara Falls on Southwest Airlines.
To find the lowest fares by day and time to fly Grand Rapids 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 Grand Rapids 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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