Originally Posted by
lhrsfo
A US only terminal works well for departures but not so well for arrivals for connecting passengers, unless they are bussed to join regular arrivals.
This probably doesn't matter for MAN where connections are very limited, but it would be a huge issue at LHR.
Conversely, LHR serves so many destinations in the USA that there are probably a lower proportion of passengers making onward connections in the USA, thus negating one of the advantages of Pre-Clearance.
MAN is mostly O&D, plus a lot of tourist flights out to Florida. Connections are very limited and its not like DUB which is a hub with a national carrier.
LHR is just too big and relies on 36% of its traffic connecting. LGW on the other hand could be a good idea as its largely O&D with many tourist flights to Florida, plus Norwegian offering flights to New York and California.