Benzos are my flight go-to. I got them for some flight anxiety, since my stupid brain started getting scared of flying, but boy do they just make the time go by and I manage to doze. It's not good quality, but it beats the total lack of sleep I'd customarily get.
Outside of flying, I have no temptation or desire to take them thankfully, so a prescription with ten pills lasts me literally years.
One word of caution there (aside from other dangers of benzos): I had a friend use them on a flight from the US to UK, and apparently was still obviously intoxicated from them when arriving, and got rejected at the border, put in a holding area, and sent back on the next flight. If going through a place where you'll actually have to talk with an immigration officer, not necessarily the smartest thing.
Outside of flying, I have no temptation or desire to take them thankfully, so a prescription with ten pills lasts me literally years.