WordPress: Redirect HTTP to HTTPS in Apache

To redirect all of your HTTP traffic to HTTPS on WordPress installations using an Apache web server, add the following code to your .htaccess file. This is the recommended method for redirecting WordPress running on Apache.

/path/to/your/wordpress/installation/.htaccess

RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://www.url.com/$1 [R=301,L]

This should begin to work immediately.