I have never checked in online and will be doing this Christmas Day for our flight Boxing day from Heathrow to JFK.
Our flight leaves at 10am and i am in a real kunumdrum as to what to leave to get to the airport.
Do you think allowing 2 hours is enough (we would leave 6.45, to get to Heathrow 7.30, say 8am), this therefore means we are at the airport 2 hours early to drop our bags off.
Usually we allow 4 hours when checking in at airport, but as checking in online i am assume this saves time and it would be nice not to have to leave so early.
Any advice appreciated