After receptions with King Felipe VI and prime minister Pedro Sanchez, La Roja were paraded through the capital city on an open-top bus.
Substitute Mikel Oyarzabal became the 10th Spain player to score at Euro 2024 when he set up and finished in the 86th minute to secure a 2-1 win over England and a record fourth title. It was their 15th goal, the most by any team at a Euros.
"It's hard to put into words how we're all feeling right now... We did well to get back into the game and struggled to build on that," added Kane.
Yamal, 17, and Williams, 22 -- both celebrating birthdays in the days ahead of the final -- have given Spain an exciting cutting edge in attack they have lacked for much of the last decade, pulling the team to a record fourth European Championship triumph.
"Right now, we don't realise what we've done. We'll return to Spain tomorrow and will be able to live this thing with the fans and return love and the warmth they've given us."
Spain won all seven games in Germany en route to lifting the trophy, but England gave them a hard fight in the final, losing 2-1 to a Mikel Oyarzabal goal four minutes from time.
Southgate gave his penultimate press conference of the tournament in the bowels of Berlin's Olympiastadion just over 24 hours before his team will run out seeking to finally win another major trophy to go alongside the 1966 World Cup.
"I've told my mum that if we win I don't want any presents, I just want to celebrate in Madrid with my mates," Lamine, as he prefers to be called, said in an interview with Spain's Marca outlet on Saturday.
It's not yet midday but there is a real buzz inside the local bar, El Cordobes, which is still reeling with excitement after Yamal, who used to come in with his dad, clutching a football, shot home the sublime goal against France that helped propel Spain to Sunday's Euro 2024 final.
With a combined age of 106, Germany's three remaining 2014 World Cup winners Manuel Neuer, Thomas Mueller and Toni Kroos are leading the hosts' charge for Euro 2024 glory.
The France captain, to his credit, was sublime in creating the goal that beat Austria 1-0, but his failure to score at a Euros will weigh heavily on a player who has found the net 12 times at World Cups, including a hat-trick in the 2022 final.
The veteran forward, 39, says his team "deserve" to win another major international trophy to add to their singular triumph, at Euro 2016.
"I listen to the Beatles a lot. My style of music is a bit old, so that that's right on my street," Bellingham told a press conference.
Bellingham was in a class of his own in Gelsenkirchen as the Real Madrid midfielder's header on 13 minutes capped a fine individual display.
"The Euros is very important in our careers, but we are citizens first and foremost and I don't think we can be disconnected from the world around us," said Mbappe.
Gareth Southgate's men have won just one of their last five matches -- a run that includes a 1-1 draw with North Macedonia and a shock 1-0 home defeat to Iceland in their final warm-up match before flying out to Germany.
Italy are second in Group B, level on three points with leaders Spain, after an encouraging performance in front of a feverish Albanian support in Dortmund, which saw Nedim Bajrami open the scoring after just 23 seconds.
Bajrami pulverised the previous Euros record for the quickest goal of 67 seconds by Dmitri Kirichenko of Russia against Greece in 2004.
The three-time European champions have often been accused of being toothless in attack during recent major tournaments, but produced an eye-catching display at the Olympiastadion to cut apart a disappointing Croatia.