How long does it take to clear security at Heathrow Terminal 1 if I checkin online and don't checkin bags?

really depends on time of day from 11am to 6 pm give yourself at least half an hourHow long does it take to clear security at Heathrow Terminal 1 if I checkin online and don't checkin bags?
This is the link to the official Heathrow Airport website...have a look at the security information there...





http://www.heathrowairport.com/





Safe journey.How long does it take to clear security at Heathrow Terminal 1 if I checkin online and don't checkin bags?
Two weeks ago it took me two hours and a half, but that may have been because of the scare over liquids. I would say if you want to be safe especially at Heathrow, get there 3 hours early, especially if it is an international flight.
an hour, beginning the minute your plane left.
2 vhrs
then you walk through customs and passport control and your done so it depends on the queues
I bet it still takes ages, my friend just flew over and tried using fast track to speed things up. The queue was a hour long. Forget it instead take luggage at least you'll be comfortable when you arrive. Plus there's a very good chance to smuggle a bit of smoke, all the dogs are searching for explosive materials.