Those airlines include Air New Zealand, Qantas, Emirates, Virgin Atlantic, Air Tahiti Nui, Malaysia Airlines and Air Mauritius. Within our agreements with these airlines we can offer you a number of different levels of on-board comfort and service, from economy to first class, and a variety of routes around the world, enabling you to fly out and back with different airlines with stopovers in different continents. Obvious places for stopovers would be Los Angeles, Dubai, Singapore and Hong Kong as well as the islands of the South Pacific.
Given the length of the journey you're considering (about 26 hours from London to New Zealand via Los Angeles with Air New Zealand), it's well worth upgrading to give yourself more space and comfort. All these options we can discuss with you. In the meantime, on these two pages we have highlighted a few of the features of the airlines we work with.