The cost of fuel is a lot cheaper, so you can just put capacity between New Zealand and Australia, even though it's not a service which is necessarily profitable.
Government data showed international air travel prices fell 4.2 per cent in the year ended June 30, 2015, and were 21 per cent lower than their peak in the fourth quarter of 2008.
The ever-decreasing price of oil - which this week fell below US$30 a barrel for the first time in 12 years - is positive for Air New Zealand. Jet fuel represents around 25 per cent of the airline's pretax cost base, according to Forsyth Barr.
Cheap fuel gives greater capacity for extra flights, with airlines more likely to fly across the Tasman if the alternative is leaving the plane on the ground, Mercer said. The Wellington-Canberra flight, which would be the first between the two countries' capital cities would be an add-on to a Singapore-Canberra direct connection, the first time the Australian capital city would have been serviced by a direct long-haul international service. An official announcement is expected next week.
"The cost of fuel is a lot cheaper, so you can just put capacity between New Zealand and Australia, even though it's not a service which is necessarily profitable," said Mercer, with cheaper fuel also making older aircraft more competitive.
"All new aircraft are based on being 25 per cent more fuel efficient," he said. At US$100 a barrel, "25 per cent is $25 - at $30, 25 per cent is only $7.50. The long-haul routes have potential capacity competition coming on, as airlines will look to put into service the 747s again, which were becoming less competitive on the leg between Asia, New Zealand and the US."
However, Mercer said Air New Zealand's alliances with Cathay Pacific, United Airlines, and Singapore Airlines on long-haul routes meant the airline was in good shape to work with key carriers and manage the pressure that might eventuate as a result of low fuel prices.
Air New Zealand's shares climbed 20 per cent in 2015, a year when an oversupply of oil pushed global fuel prices lower. The stock has gained about 2 per cent this year, while declining 0.5 per cent to $3 today. The shares are rated an average 'hold' based on six analyst recommendations compiled by Reuters, with a median target price of $3.13.