We're flying BA from Glasgow then connecting onto American Airlines at Heathrow before flying to Charlotte.
We'll have 90 minutes in Heathrow and it's sold as a connecting flight so in theory should be fine as we won't have to deal with luggage. We'll have a just turned 3yo with us. Should it be enough time?
I've only connected through Heathrow once going to the US, didn't have any kids with us and can't remember how long we had.