Get a white-noise generator.  I use <a href="https:&#x2F;&#x2F;f-droid.org&#x2F;repository&#x2F;browse&#x2F;?fdfilter=noise&amp;fdid=net.pmarks.chromadoze" rel="nofollow">https:&#x2F;&#x2F;f-droid.org&#x2F;repository&#x2F;browse&#x2F;?fdfilter=noise&amp;fdid=n...</a> on Android.  I find it more effective than earplugs for drowning out engine noise and crying children.<p>Don&#x27;t drink alcohol if you want to be productive - although if you&#x27;re just going to be watching in-flight movies, knock back as much as you can ;-)<p>If it is not too late, request a special meal. I usually choose vegetarian (because I am), but you can go for Kosher, Halal, Vegan, etc.  You usually get served first and the meals are generally of higher quality.