Since 1950, the amount of passenger kilometers has nearly doubled, climbing to 10.8 billion in 2015. In 2017/18, combined passenger journeys totaled 1.4 billion, of which 414 million were made by season ticket holders. As of 2019, users of Oyster and contactless payment cards travelling during peak hours between zones 1 and 4 paid 3.90 British pounds for a single journey.
In 2017, the busiest station on the underground network was King’s Cross St. Pancras, with 97.9 million entries and exits recorded. By comparison, the previous year passenger numbers at Waterloo had exceeded 100 million. King’s Cross St. Pancras was also the busiest station on weekends. Saturday and Sunday entries amounted to an average of roughly 216 thousand.
Regarding service quality, customer satisfaction with the London Underground has been increasing in the past thirteen years. 85 percent of users were content with state of operations in 2017/18. The line with the smallest share of satisfied customers was the Central line, with an evaluation score of 79 percent in the second quarter of financial year 2018/19. Between November and December 2018, the number of customer hours lost due to disruptions on the network totaled nearly 1.9 million hours, with the Piccadilly line accounting for 466 thousand hours.
According to a 2017 survey on aggravations of London Underground users, about 65 percent of respondents were annoyed by people standing on the left on the escalators. Nearly the same percentage of customers was annoyed when others did not take off their backpack on a crowded Tube train.