Ladies and gentlemen, So you booked yourself a long haul flight to (or from) the USA and you want to know if the extra upgrade to Comfort Plus on your Delta flight is worth it? Here you will find the answer. Getting the upgrade To be honest, it wasn't easy, to say the least. My flight was from Tel-Aviv to New York via a connection in Paris. It was code shared with Air France so every change/upgrade to any of my flights had to be done on the Air France website. Unfortunately,