The fare flying Air China must depart from Auckland to Zurich between 08-31 May 2018 or to London and other European destinations between 08-31 May and 18 Oct - 25 Nov 2018.
Last month, Hawaiian Airlines offered return economy fares from Auckland to Honolulu for $618 for travel in February and March.
Qatar Airways also advertised cut-price deals to Europe for booking until January 7. Return fares on the airline, which operates the longest route from Auckland to Doha, started at $1,435 to Dublin.
In November, Flight Centre fired a shot in the airfare war, with Air New Zealand return flights to London dropping below $1,300.
At the time, the agent said its $1,299 fare was the cheapest ever for Air New Zealand flights to London - traditionally more expensive than other European destinations to fly into because of high taxes.
Airfares dropped to below $1,000 on Philippine Airlines to London earlier last year.