I'm going to be flying from OSL to LHR on Monday, with bags to check in. Because of the arrival time of our train from Bergen, we're likely to get to the airport several hours before departure (which is at 1645).

MMB tells me that we can use the self-service bag drop at OSL, but can we do so before the BA check-in desks open? From what time? Is it a straightforward process? (I've never before flown out of OSL with checked luggage.) If there are any issues will there be staff on hand to help resolve them, or will we have to wait until BA staff show up?

Many thanks.