FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,172
You should ask the airlines in question. Some airlines DO have limits - for instance, AF or KL will check luggage for a maximum of three segments (they claim it doesn't fit on the luggage tags afterwards) while DL can do up to 4. I don't know about either US or LH.