Thinking of going to New York next December for my DH who turns 40 on the 11th December. We have a party on the 12 but are pretty flexible apart from that and can go any time in December (well apart from Christmas Eve and Christmas Day obviously!), what would people suggest is the best time to see all the Christmas stuff plus cheapest for air fares, also midweek or over weekends, we dont mind what. We live in Glasgow but probably would have to travel to Manchester, United Airlines are the only airline who fly directly from Glasgow.