The number of passengers travelling on international flights has slowed, according to the International Air Transport Association.
Passenger numbers were up 3.8% in June compared to last year, the lowest level increase since 2003.
This is the slowest growth since the industry was hit by the SARS crisis in 2003.
The figures from IATA also showed passenger load factors dropped to 77.6%, slightly under the 78.8% recorded from last year.
Chief executive of IATA Giovanni Bisignani said; “With consumer confidence falling and ski high oil prices, the situation will get a lot worse.”