Does anyone know if you have to clear Immigration at the new Madrid Terminal 4 if you have a *same* Terminal connecting flight?
e.g. Mrs Standby inbound on Avianca CLO-MAD, outbound on Iberia MAD-ZRH?
Maybe it's a bit early to ask this, as it's not actually operating yet!
If no one knows then can I take the opportunity to wish everybody involved all the best for a smooth move to T4 Madrid - I hope it's a great success!
Good luck! (I think you'll need it!)