Under the best conditions, the journey would take three days, with multiple stops, first in Bermuda, a six-hour flight away, then a fifteen-hour leg to Horta, in the Azores. From there the Clipper would fly to Lisbon, where Harriman was to catch a KLM flight to the Portuguese city of Porto, lay over for an hour, then proceed by plane to Bristol, and catch a British passenger flight to London