The 2025 Brussels Airport Marathon & Half Marathon will take place on Sunday, 2 November 2025, in the vibrant city of Brussels, Belgium. Participants can expect mild autumn weather with temperatures ranging from 8°C to 13°C (46°F to 55°F), perfect for running. This year marks the 20th edition of this prestigious event, showcasing the stunning historic landmarks of Brussels. Runners will embark on an exhilarating journey through the city, starting at De Brouckère and finishing in the heart of Brussels, with sights including the iconic Koekelberg Basilica and the remarkable Atomium along the way.