We looked at operating A320's to/from Southend for the Olympics. As part of our due dilligence we approached current A320 operators and asked them if they could perfrom a SEN-REU sector with 150 pax. Some said the extended runway was too short and they wouldn't do it - some agreed to do it. It seemed to us that the runway length (extended) is on the lower limit of what airlines will accept and that individual company SOP's are the determining factor.