Singapore Airlines is putting on 18 extra flights to Christchurch during the next summer holiday season, eight more than last summer.
The airline will increase its services from daily to nine flights a week, with the extra flights operating on Tuesdays and Thursdays between December 1 and January 28.
The new schedule will add close to 5000 seats into the southern gateway.
Christchurch International Airport chief executive Malcolm Johns said the seasonal boost would benefit Christchurch businesses as the city's rebuild progressed.
The extra flights would be served by a Boeing 777-200ER planes.
Singapore Airlines' general manager for New Zealand Edwin Chiang said Christchurch was an important market for the carrier.