Air New Zealand's premium economy class won three gongs at the 2015 World Airline Awards.

Air New Zealand's premium economy class has had a clean sweep at the 2015 World Airline Awards.

Air New Zealand took out all three premium economy awards at the awards held at the Paris Air Show on Tuesday, winning best premium economy class, best premium economy class airline seat and best premium economy onboard catering.

Air New Zealand's chief marketing and customer officer Mike Tod said the awards were a reflection of the world-class inflight product the airline offered.

PIERRE BARTHE Air New Zealand will take delivery of its seventh ATR 72-600 at the Paris Air Show.

"These accolades are something that all Air New Zealander's can be very proud of as we continue to innovate and find new ways to enhance the customer journey," Tod said.

The Air New Zealand-managed Star Alliance Los Angeles lounge also won best airline alliance lounge.

Customers can now book premium economy fares on all Boeing 777 and 787-9 flying trans-Tasman, Pacific Island and Bali services from October 25.

Premium economy seating has previously been available on aircraft servicing the trans-Tasman and Pacific Islands, but the service was the same as economy.

Customers could buy a seat in premium economy for $10 using seat select depending on availability.

Works deluxe customers were offered seating in premium economy cabin at random but this was not a specified benefit of the fare.

The airline's most frequent flyers could also opt to sit in premium economy if space was available.

Air New Zealand also announced it would buy an additional ATR 72-600 for its regional network at the air show, where it took delivery of its seventh ATR 72-600, which seats 68 passengers.

Since 2011, Air New Zealand has purchased 14 ATR 72-600s, which will all be delivered by 2017.

Once delivered, Air New Zealand will have a fleet of 25 ATRs including 11 ATR 72-500s and 14 ATR 72-600s.

Air New Zealand was ranked 17 in the world's top 100 airlines of 2015, slipping one place from 2014 and sitting behind Australian rival Qantas, which ranked tenth.

Qatar Airways was ranked number one while Fiji Airways was number 100.