Add cart and checkout notices if total less than $25

cart_total_notice.php

<?php
add_action( 'woocommerce_before_cart_table', 'free_shipping_notice' ); 
add_action( 'woocommerce_checkout_before_customer_details', 'free_shipping_notice' ); 
function free_shipping_notice() {
  if ( 25 > WC()->cart->get_total() ) {
    echo '<div style="color: #e08e79;">All orders over $25 ship free</div>';
  }
}