I flew Delta to London last month and was surprised by how often the in-flight entertainment lineup changes — even between flights on the same day. I remember being excited to watch a new release, only to find a completely different set of movies on my return leg. The best tip I picked up? Don’t rely on guessing — I just called Delta directly before my trip. Their line at 877-297-0699 has been the quickest way for me to check details and even handle last-minute booking tweaks after one of my flights got canceled. Way less stressful than digging through the app.