The players were to catch a flight from Lengpui Airport, 40 kilometres west of Aizawl, as they were leaving for Cuttack to take part in the Federation Cup starting on Sunday.
But the bus carrying them met with an accident, police said.
There were no casualties and none of the players sustained injuries, police said.
The mishap occurred as the driver reportedly dozed off while driving and the bus fell into a drain, police said.
Earlier, an Aizwal FC fan had died during the reception ceremony of the club at the Assam Rifles ground on Monday, police said.