[QUOTE=GKirk]
Remember, you only need to fill the front to make a transatlantic flight profitable 😉
[QUOTE]

Only if the yield is very strong, and whilst we are talking about the oil industry (ie a sector willing to pay high fares), it is only to an operational centre, and not for most senior management/execs, for whom these companies will pay the most to transport. In the cases of operational staff and management, experience shows that whilst they will typically be flown up front, the companies will not pay the highest of fares unless they really have to, and so such a route would struggle purely relying on the up front pax. If the fares are too high then some of those travellers will still find themselves connecting, which then reduces the pax demand.