Skip the cart and go directly to checkout #woocommerce #cart

add-to-cart-redirect.php

<?php
  /**
	 * Direct Checkout on Add-to-cart
	 */
	add_filter('add_to_cart_redirect', 'yanco_add_to_cart_redirect');
	function yanco_add_to_cart_redirect() {
		global $woocommerce;
		$checkout_url = $woocommerce->cart->get_checkout_url();
		return $checkout_url;
	}