Originally Posted by
abfab
It's shorthand for 'Triple 7' which is how quite a few people say 777 verbally, and is in fairly common use around the net.
And there was me thinking the only T7 related to BA was the terminal at JFK.
I just wouldn't bother with a routing via HKG or some such. So far out of the way. Although as already stated, transfers from international to domestic in either BOM or DEL are far from what you want after an international arrival. They're not that difficult, but after eight plus hours in the air.....