The good thing about flying in winter is that full ski gear is perfect to fly. Skiing is faster than flying so if it's good to ski or snowboard, then it's good to fly. So only to non skiers we have to explain what to wear. That would be a set of long underwear. A truly warm winter coat. Good gloves (we can lend you some). Warm socks. A buff or shawl around the neck. We have a helmet for you so no head gear or beanie is needed.