Benchmarked strictly across TripTiming's 5 empirical pillars: Crowds, Weather, Vibes, Prices, and Safety.
London emerges as the optimal October destination with an overall TripTiming Index of 59/100 vs 58/100 for New York City (+1 point advantage). London experiences substantially lower visitor footfall and shorter landmark queues (moderate footfall vs peak seasonal crowding in New York City). This is reinforced by lower lodging rates (~$286/night vs ~$418/night, saving ~$924 over 7 nights). While New York City retains an edge in Weather Comfort (86/100 vs 57/100), London's commanding performance in Space & Crowds secures the overall October recommendation.