If you’re aiming for the main entrance near the giant wheel, Hyde Park Corner (Piccadilly Line) is your best mate. It’s about a three-minute walk, tops—assuming you don’t get distracted by the £8 hot dogs.
But here’s the irony: the station is tiny, and on peak evenings, it becomes a human sardine can. You’ll be pressed against strangers while trying to balance a bag of doughnuts. Still, for speed, it’s unbeatable.