Wendy, You are correct. Only BA is currently using terminal #5. Last week a news source here in England stated that other international flights might land at #5 which was incorrect. However, I would choose to use any airport other than Heathrow. It is an unpleasant place to spend any time with staff unwilling to offer much assistance.
🚢 Cruise with your favorite Keene Luxury Travel Staff Member! 💰 5% KLT Reward plus Shipboard Credit available (amount varies per voyage)! 💲 Offering Enhanced KLT Rewards on voyages hosted by Ngaire & Clay!