Set a maximum shipping cost for WooCommerce, add this to functions.php - works with all shipping methods

gistfile1.php

/**
 * Set maximum shipping cost in WooCommerce
 */
add_filter( 'woocommerce_package_rates' , 'woocommerce_set_maximum_shipping_cost', 10, 2 );
function woocommerce_set_maximum_shipping_cost( $rates, $package ) {
 
	foreach( $rates as $rate ) {
		// Change 10 to your maximum shipping cost
		if( $rate->cost > 10 ) {
			$rate->cost = 10;
		}

	}
 
	return $rates;
 
}

When i add this to the functions.php my whole site goes blank.
i add the code to the functions.php of my theme, is that correct?

I have added the code in wc-deprecated-functions.php (woocommerce --> includes) and it works perfectly

Thanks!

Three years after you posted this, here I am looking for the solution. I added to wc-deprecated-functions.php (woocommerce --> includes) and it works great. Thank you!

The taxes will not be calculated correctly for shippings with the actual rate higher than the max rate set.

I just added this today and it's still working. Thanks a lot! :)

Thank you. This works perfectly for what we needed. Selling handmade cotton masks and trying not to gouge for shipping.

Worked perfectly for me using WooCommerce 4.7.1