Originally Posted by
Stranger
With a 20 hours connection, i.e. overnight, I doubt they would check through.
The rule for *A, other than exceptions, is 24h limit, even if it’s separate tix. Sometimes they can even check bags onto non *A, but that’s an exception not the norm. So unless some weird exception is in place, it would definitely be fine. I’ve checked bags through overnight on *A, as recently as last month through LHR.