Look: Argentina World Cup victory parade ends abruptly; Messi and team forced to switch to helicopters

On Tuesday, millions of jubilant fans turned out to welcome home Argentina's World Cup winners led by Lionel Messi, but most were left disappointed when an open-top bus parade had to be abandoned due to the massive crowds, in favour of a hastily-organised helicopter tour.

Vast crowds of ecstatic fans cheered on their heroes along every metre of the planned 30km parade route from a Buenos Aires suburb to the centre of the capital, but that made for interminably slow progress.

The bus had crawled along for almost five hours, as the throng celebrated the team's thrilling penalty shoot-out victory over France in the World Cup final, before the decision was made to trade the bus for a chopper.

"It was impossible to continue on the ground due to the explosion of popular joy," presidential spokeswoman Gabriela Cerruti said on Twitter.

It meant that many fans — including the largest congregation at the iconic Obelisk monument in central Buenos Aires that has for decades been the epicentre of sporting celebrations — did not get to see their idols in the flesh.

"I'm a little bit sad that we weren't able to see them," said Marta Acosta, 35, who traveled into town from a southern suburb at 5am.

Claudio Tapia, president of the Argentine Football Association (AFA), blamed the police for the decision to abandon the victory parade.

"They are not allowing us to go and greet all the people at the Obelisk," said Tapia on Twitter.

"The same security agencies that escorted us are not allowing us to continue. Thousands of apologies in the name of all the champion players. It's a shame."

Hordes of revellers wearing the national team's blue and white replica shirts and draped in flags sang, danced and set off fireworks throughout the day, with many camping out all night to secure spots along the parade route.

However, three hours into the procession, the bus had barely covered a third of the planned path.

Eventually, the vehicle was ditched.

Instead, Messi, coach Lionel Scaloni and midfielder Rodrigo De Paul took the World Cup trophy with them for a helicopter ride over the main parade sites, including the Obelisk, police said.

Messi and winger Angel Di Maria then took a private plane to their hometown of Rosario, alongside forward Paulo Dybala.

As Messi and Di Maria boarded another helicopter to take them to the private neighbourhood where they own homes, Dybala continued on to his hometown of Cordoba, an AFP photographer said.

Back in Buenos Aires, many continued to celebrate, but for some fans, the short-circuiting of the party was inevitable.

"Only someone who does not know what football means to the Argentine people could think this was not a possibility," Roman Garcia, 38, told AFP.

An estimated five to six million people had lined the parade route, a government source said.

Television images showed two men trying to jump from a bridge onto the players' bus. One succeeded, but the other missed and fell into a crowd of people.

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