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Flight delays were most common in July 2024, with almost every second flight from Germany taking off late. KAYAK has analyzed when travelers will have to expect more delays in the summer of 2025 and what measures could reduce the risk.
Frequency of delays in summer 2024
In July 2024, 44 percent of flights from German airports took off more than 30 minutes later than planned. Travelers who remain flexible in the summer months of 2025 should therefore fly in June or August to minimize the risk. According to KAYAK, German airports will be particularly busy on June 6th and 7th and August 1st and 2nd.
Ideal departure times for punctuality
Early departures offer the best chance of being on time, as only 14 percent of flights at 6 a.m. were delayed. In contrast, flights at 11 p.m. suffered the most delays at 58 percent. Departures at 3 p.m. are also disadvantageous for travelers who want to start on time.
Regional differences in delays
Larger German airports such as Munich, Cologne and Frankfurt am Main had the highest delay rates. Munich in particular is at the top, where almost half of the departures last year were delayed. Smaller airports like Bremen performed significantly better, with less frequent and shorter delays.
Return flight scenario at popular travel destinations
Travelers should also expect significant delays for return flights in 2025 from popular holiday destinations such as Antalya, Lisbon, Mallorca and Miami. In Antalya, 53 percent of flights were delayed, with an average waiting time of 38 minutes.
KAYAK is a leading global travel search engine that provides consumers with valuable insights into tourism trends through comprehensive data analysis. With easy-to-use tools, KAYAK empowers people to make informed decisions and optimize travel experiences. The company remains committed to its mission of making planning and experiencing travel easier and better for everyone.
* About the methodology
Flight delays are based on data from Aviation Edge. For the annual analysis, flights from January 1, 24 to December 31, 2024 were recorded. (As of evaluation: January 28, 2025)
Busiest and most expensive departure dates are based on KAYAK flight data from flight searches between January 1, 2025 and February 10, 2025 for travel between June 1, 2025 and October 1, 2025.
About KAYAK
KAYAK, part of Booking Holdings (NASDAQ: BKNG), is the world’s leading travel search engine. With billions of searches across our platforms, we help people find their perfect flight, accommodation, car rental and vacation package. We also support business travelers with our business travel solution.
