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Southwest® flights from St. Louis to Grand Rapids from $128

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Low fares from St. Louis to Grand Rapids

$

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 07/29/2026

One-way

Basic

From
$128
Seen: 3 hrs ago

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 07/28/2026

One-way

Basic

From
$128
Seen: 3 hrs ago

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 08/12/2026

One-way

Basic

From
$144
Seen: 20 hrs ago

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 07/31/2026

One-way

Basic

From
$144
Seen: 3 hrs ago

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 08/01/2026

One-way

Basic

From
$144
Seen: 3 hrs ago

St. Louis (STL)to

Grand Rapids (GRR)
Depart: 07/22/2026

One-way

Basic

From
$154
Seen: 19 hrs ago

Looking for more low-fare flights?

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Find low fares

Explore flights from St. Louis to Grand Rapids

May 2026
From$154*
Seen: 2 hrs ago
One Way/Basic
Jun 2026
From$154*
Seen: 7 hrs ago
One Way/Basic
Jul 2026
From$128*
Seen: 3 hrs ago
One Way/Basic
$154
$379
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    • Range$154-$379

    *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:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Kent County International Airport
    Distance:
    382 miles

    Route Information

    85† 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 85 weekly flights from St. Louis to Grand Rapids on Southwest Airlines.
    To find the lowest fares by day and time to fly St. Louis to Grand Rapids with Southwest, check out our Low Fare Calendar.
    You can rent a car at Kent County International Airport book yours with your flight.
    Yes! Flights from St. Louis to Grand Rapids—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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