Originally Posted by
smf_ltn
Airlines will check bags to the destination as the default, even with an overnight layover. You could ask them to check only to the layover if you want to pickup the bags. I suggest the parents carry one nights clothing in a small carry-on and check the rest. We did that approach just fine with a 12 hour overnight layover in CDG, of course this was one PNR.
I disagree. While AF/KLM will check bags through with up to 24 hours (connection on an international itinerary) and I don't know how KE handles this, IIRC the DL rule is approximately 8 hours. I'm sure someone here knows the exact details of the current rule, but AFAIK DL won't check the bags through for a 12-15 hour connection.