Retrieve Drupal Commerce order history Is it possible to retrieve a user's order history programatically?

Ideally, I would be able to user the user's profile ID to then load multiple past orders.
Yes you can use the commerce_order_load_multiple() function and take advantage of the $conditions parameter, e.g.

$orders = commerce_order_load_multiple(array(), array('uid' =&gt; $user_id));