Jon Duffy: Consumer NZ CEO on Jetstar overtaking Air New Zealand in terms of reliability - Heather du Plessis-Allan Drive

Air New Zealand's reliability has fallen - and it's trailing Jetstar in figures for last month as it grapples with engine problems.

Only 77 percent of its domestic flights arrived within 15 minutes of scheduled times last month, down from 88 percent in January.

Jetstar reported no domestic cancellations last month and almost 79 percent of flights were on time.

Consumer NZ CEO Jon Duffy says it's good opportunity for Jetstar to boost their reputation.

"It's a great opportunity for them to show that they're lifting their game - and become more of competitive threat to Air New Zealand."

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