Frequent. Please, you can't manipulate English to make it mean what you want.
I spent 25 years as a consultant to the travel industry. Please understand, " a one-leg flight, with the break in Tokyo" is a CONNECTION. When you flew to Tokyo from Chicago that was a connection of 90 minutes to 2 hours and you still had an 8 hour flight to Bangkok. I did not include the old LAX to Bangkok Thai flight as to almost all Americnas it was still a connection from somewhere else in a very large country.
It's hard to believe that this all started because I pointed out that one can't, always, simply pay a little more and get a direct flight. Anyway, "old Git's" ill infiormed comment has already seen more play than it deserves.>