I have rarely paid serious attention to stopover rules. Most of my international flights tend to be nonstop ex NYC. However, of late I have been contemplating this issue, (post DL investment in VS) as it is more beneficial to fly to South Africa for a couple of bucks more, and have a long stopover for $100 in London. The question is how long is a stopover permissible ? Where in the fare basis does one figure out what is maximum allowed stopover ? Having said that, I have a non-VS/DL stop over question, specifically on NH. Here is the fare basis - NH KLE06NY3 ( NYC to BJS ). It says two allowed in Area 3 (Asia) How many days can I stopover in Tokyo ? And, how does one book online to leverage the stopover rule ? Or, does one need to call the airline ?