Fewer then 10 weeks out from the start of the World Cup football finals, work on crucial new airport terminals has fallen behind in most of the dozen Brazilian host cities, heightening the risk of overcrowding and confusion during the tournament.
A temporary canvas terminal will be used instead of a planned airport expansion to receive fans in Fortaleza, which will host six matches including Brazil's game against Mexico, and a quarter-final.
Officials are already preparing alternatives for other cities.
Concern over Brazil's airports is especially acute since they represent some of the tournament's most lasting investments.
The stakes will be high in Brazil as more than 600,000 visitors arrive for the World Cup starting in June, one of the biggest sudden influxes the country has ever seen.