Originally Posted by
Guy Betsy
Not necessarily the case all the time... it depends on your ticket and alliance rules.
I had a SQ-SK overnight connection at LHR which my bags were checked straight through and 'kept' till SK flight the next day. I was on one ticket. Yet on seperate tickets, this was not permitted with similar routing before.
I have had lots of baggage checked in for my interline trips with an overnight sub-12 hour connection at LHR where I did not have to claim the bags at LHR. It has ordinarily done me well.