U.S. carriers tighten routing rules

Do you sometimes prefer making a connection or two instead of taking a nonstop flight, either to save money or rack up more frequent-flier miles? You might have to change your ways. Domestic U.S. transfers are now allowed much less frequently than before, and making connections on flights between an airline’s hubs is almost impossible.

No big deal, you might say. Wouldn’t any reasonable person choose a nonstop any time? Not necessarily. Different travelers have different priorities — some would rather save time, others money. But the best thing about the previous practice was that passengers had options. Now, that’s no longer the case…