Hundreds of Olympic athletes and coaches have been forced to make alternative plans to leave London because Heathrow can't cope with the mass exodus following the Games.
Major teams, including Australia, China and Canada, are booking private charter flights from Stansted in Essex to avoid the congestion, the Evening Standard reported.
The New Zealand Olympic team is not among the nations making alternative plans.
Heathrow - the official gateway of the Olympics - is bracing for the busiest day in its history on August 13, the day after the Olympic closing ceremony.
The airport normally averages 95,000 departing passengers a day but will have to handle 138,000 on that day.