I've just been to get a LONE4 quote from a trailfinders shop, routing LHR-NRT-HKG-BKK// SIN-PER-ASP-CNS-SYD-AKL-HNL-SFO//LAX-LAS-ORD-YYZ-BOS,JFK-LHR and was quoted £423 in taxes. Is it worth me trying to get a quote from AA? Are the taxes likely to be a lot less?