Originally Posted by pauldb

Was that a typo? More like three and a half hours.
Sorry, let me provide more details. I am currently holding award tickets r/t from New York to Helsinki. They are doing a tour and I thought it started and ended in Helsinki. It doesn't... it ends in St. Petersburg. The return flight on the award ticket is HEL-LHR-JFK, so they need to get from St. P to either HEL or LHR. There is no award availability for either, so I will have to buy a ticket to get them out of Russia. Once I'm forking out cash, it may be worth going directly from St. P to LHR, eliminating the HEL stop.
The 55 minute flight I referred to was St. P to HEL. You are correct that St. P to LHR is 3.5 hours.
ps. I hope I am not giving away too many identifying details. You don't think the BA Lurker will try to identify me and blacklist me somehow? Or am I just being paranoid from reading FT too much?