Originally Posted by worldexpress
taking the scenario one step further, if i was to buy, for example, MSN-MSP-NRT-MSP-MSN and "get off" at MSP on return and not complete the MSP-MSN portion, what bad things can happen? (I'd get the luggage because immigration/customs need cleared at MSP). Would NW confiscate all miles flown (would be my main concern)?
It's called "hidden city" ticketing and is generally against the rules of most of the airlines (WN being the only exception I know of -- the majors all state that you shouldn't). They know it happens but also reserve the right to change the fare basis of your ticket and forfeit all miles earned, yadda yadda yadda.