Okay, so I can’t see an answer to this. I want to book a Tenerife (TFS) to HEL flight but the Tenerife flight on BA goes to Gatwick and the AY flight leaves within 24 hours from LHR. BA agent was adamant that this could not be booked as a connection with Avios due to the different airports in London. I would prefer not to pay extra taxes with 2 separate tickets. Anyone know if the agent is correct or is this a call again scenario? Thanks.