Jetstar says its back to basics approach is paying dividends with a strong lift in on-time performance this year.
The airline, which has about 22.4 per cent of the domestic market, said 89.4 per cent of its flights left within 10 minutes of scheduled departure time in August.
Air New Zealand's operational figures for the same month show 84.6 per cent of its domestic flights departed within 10 minutes of scheduled departure time.
Jetstar's performance in September improved further with 89.7 per cent of flights meeting the departure time.
Jetstar's New Zealand head, Grant Kerr, said the latest results followed a pattern of consistently improving on-time reliability this year.