Passenger numbers at Frankfurt Airport, the main travel hub in Germany, continued to rise strongly in September due to sustained high demand to holiday destinations. However, the increase at one of Europe’s busiest airports was slowed by the strike of Lufthansa pilots at the beginning of last month. The number of passengers rose by 58% to 4.9 million compared to the same month last year, which was heavily impacted by the pandemic, airport operator Fraport said in Frankfurt on Friday. Without the strike by the pilots of Fraport’s most important customer, there would have been about 80,000 more …