I've been on those kinds of trips a few times (alone once), and it's not always a bad thing.

On the ground, I usually walk around the airport, eat, browse shops, eat (oh, did I say that already?), etc etc. You can also meet fun people at the airport! On the flights, I usually have my laptop to keep me company... until the batt runs out, at least... and I also take a good book with me. If my seatmate isn't the chatty type and there's nothing else to do, I sleep.
Have a good, safe trip, PejaHoops16!