I'm unclear if open tickets refer only to leaving the dates open or if they can also include leaving the itinerary open (after leaving the continent of origin) so as not to incur a change fee wants you decide axactly whre you want to go. Can anyone clarify this for me?

Also, has anyone flown Europe - South America via the US? I would like to fly from LHR to GIG via LAX (to get more miles). Am I correct in reading the rules that this is possible.?

Thanks in advance.