Spain's world champions, who beat Argentina 1-0 after extra time in the World Cup final, are parading through central Madrid streets on Monday afternoon before crowds expected to reach one million, according to authorities.

Before that, their Iberia airline plane is scheduled to land at Madrid-Barajas airport at 12:50 local time (10:50 GMT), according to Spanish airport operator Aena.

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Afterwards, the celebratory procession will set off on an open-top double-decker bus from near La Moncloa Palace, the residence of Socialist Prime Minister Pedro Sánchez, to Plaza de Cibeles in the heart of the capital, according to Madrid governor Francisco Martín, who announced it before the final in anticipation of La Roja's victory. At Plaza de Cibeles, the traditional venue for celebrating titles of the Spanish national team as well as Real Madrid, a ceremony will be held on a platform specially prepared for the occasion to honor the players. Martín said "around one million people" are expected to attend. Authorities announced they will take additional security measures and special transport arrangements to handle the expected crowds along the parade route. Martín explained that 2,050 police officers and 400 Civil Guard members will be deployed for the event. In 2010, when La Roja won their first world title, hundreds of thousands of fans gathered to greet the players on their return from South Africa.