Television networks carried live coverage of the Aerolineas Argentinas plane -- painted in the blue-and-white colors of the flag with the words "Thank you Argentina" -- as it touched down.
Coach Alejandro Sabella led the team off the plane and onto three buses that took them to be welcomed by President Cristina Kirchner at the nearby offices of the Argentine Football Association, an event that was closed to the media.
Team members left the plane with grim expressions and had few if any words for waiting journalists.
"I would have liked a different kind of homecoming," said midfielder Javier Mascherano, one of the star performers in the run to Sunday's final.
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Messi, who had his head down and a pained look on his face, did not speak to the media.
But to their adoring fans, the team were heroes for battling Germany to the bitter end of a nail-biting 1-0 defeat in extra time.
Thousands more fans lined the team's route from the airport, waving sky blue and white flags and swarming the convoy, which moved forward at a snail's pace.
Nationwide the atmosphere was one of pride as much as disappointment after the team played its first World Cup final since 1990 and Messi claimed the Golden Ball award for best player of the tournament.
"Love is stronger," said its banner headline.