Originally Posted by Bernoulli
I have not read any mention of the immigration queues at EZE, and perhaps things have improved, but my arrival last December (and departure a month later) rank with the very worst immigration "services" I have had. There were two (!) immigration officers serving two 747 arrivals, and it took over two hours for me to enter - and I was in WT+, so pretty far up in the queue.
Worse, departures are also subject to a restrictive and poorly-staffed Immigration control. I arrived three hours early for my flight and was OK, but the flight was delayed by almost one hour due to so many fellow travellers caught in the "exit queue".
One other note for potential LHR - EZE travellers is that the flight actually stops in Sao Paulo both ways. Apparently the flight crew changes at this time, which seems odd (it's not very far from EZE) but no doubt is related to maximum flight times. BA is very coy about this stop and although it adds at least an hour to your flight time, it will not be mentioned when booking.
Finally, Buenos Aires is a wonderful city (and Argentina a wonderful country). Stay up late and enjoy it!
Emigration lines are worse than "immigration" ones -- at least generally; however, for most of my flights at most times of the year, I go through immigration quite quickly; it's "emigration" where the lines are more often awful because a bunch of flights leave at close to the same time.