Fyfe said Air NZ was yet to formulate a preferred course of action or strategy.
"We are obviously evaluating the opportunities and scenarios that could unfold as a result of that announcement," Fyfe said.
"We had certainly evaluated in our scenario planning this possibility. We've been doing that for some time."
The Virgin move also raised the possibility of a cashed-up overseas airline such as Abu Dhabi-based Etihad Airways climbing on to the share register.
Virgin and Air NZ have formed a partnership on flights between Australia and New Zealand, with the alliance commencing July 2011.
Fyfe said the benefits from the alliance had so far exceeded expectations.
"Our transtasman position is as strong as it has ever been and as sustainable as it has ever been"' he said.
Shares in NZX-listed Air New Zealand, which reported a 61 per cent decline in first-half net profit, fell 3c to close at 86c on Friday.
- AAP