Originally Posted by
xobile
I think it's important to note that it is not always the first carrier's allowance that applies, but if applicable, the marketing carrier. In this case, if you are buying on the UA website and the ticket comes from UA, the UA baggage allowance would apply, as they are the marketing carrier.
Superboi's response is correct.. booked on UA and other than domestic connection airline being different, everything was the same including even the miles and taxes that UA charged.
Originally Posted by
superboi
No in the quoted instances the ticket is being booked on the United website and issued by UA. The difference is that UK is a codeshare and AI is interline. In both cases UA is the marketing carrier but the allowances are different (UA's allowance for UK, AI's allowance for AI).