Mr Luxon said his airline would respond to greater competition from international airlines which were also benefiting from fuel prices, half what they were around eight months ago.
Air New Zealand spent $569 million on fuel in the past six months - almost 25 per cent of its costs - and the drop in the oil price added up to savings of $22 million during that time. It stands to benefit by almost four times that over the second half of the financial year but because of hedging arrangements the airline doesn't get the full benefit of fuel savings until next year when it could save $249 million over 12 months.
Flight Centre general manager of product Simon McKearney said competition was already intense on most international routes Air NZ flew.
"There used to be really good tactical deals but what we're seeing day in and day out is that fares have dropped to really good levels."
The strong competition from the Qantas-Emirates alliance on the Tasman meant fares on the route were now regularly about $150 one-way.
McKearney said his firm was having to renew promotional campaigns two or three times a week as deals were coming out so frequently.
Air NZ fares to the US west coast were on special at $1299, $500 less than those booked months ahead.
Travel's golden era
• Best price of a return flight from Auckland to Europe:
• 1947: $1170 (85 weeks' pay of average worker)
• 1980: $1800 (six weeks' pay)
• 2014: $1500 (1 and half weeks' pay)
Source: Flight Centre