Benchmarked strictly across TripTiming's 5 empirical pillars: Crowds, Weather, Vibes, Prices, and Safety.
While Prague captures an advantage on pure Weather (90 vs 88) with 19°C ambient temperatures, Vienna decisively captures May on Crowds (37 vs 33) and Prices (47 vs 48). Prague suffers from seasonal congestion and peak lodging premiums ($326/night), whereas Vienna delivers a more balanced, friction-free itinerary with approximately $266 in lodging savings on a 7-night stay ($288/night vs $326/night).