Cathay Pacific Airway's peak-season services weakened last month, raising the spectre that consistently higher oil prices may have finally convinced consumers to cut back on air travel. Cathay carried 1.41 million passengers last month, a rise of 11.6 per cent on the same month last year. But that growth was slower than growth in July and for the first seven months of the year. 'August's figures were a little disappointing as we did not manage to break any summer passenger records even with our extra available capacity,' Ian Shiu, general manager of revenue management, sales and distribution said in a statement. 'Still, the outlook for bookings [this month] is good.' Cathay's capacity - measured in available seat kilometres - grew 11.9 per cent last month, outstripping demand growth. The airline industry has been struggling to cope with the skyrocketing cost of jet fuel. Since its low on May 16, the price of aviation fuel traded in Singapore had risen 28 per cent to US$77.15 a barrel, averaging US$70.38 a barrel over the past six months. Cathay and nine other airlines were on Saturday given permission to raise their fuel surcharges again from the end of the month. From October 1, travellers on Cathay and Hong Kong Dragon Airlines will have to pay $91 per flight for each regional flight, up from $86. Cathay will add $353 per flight for all long-haul destinations. It said higher fuel costs had weighed heavily on both cargo and passenger flights last month. Cargo volumes rose 22.1 per cent to 94,522 tonnes. But load factors - the proportion of available capacity utilised - slipped marginally to an average 64.3 per cent. In the first eight months, Cathay carried 10.19 million passengers, up 14 per cent year on year. Cargo volumes reached just over 628,000 tonnes over the same period, up 12.8 per cent.