In order to begin night flights, Queenstown will widen its runway and install more lighting.
The Queenstown Airport Corporation (QAC) saw potential in the benefits of the night flights, and employed consultants to see what improvements needed to be made.
The airport is currently undergoing night operations authorisation, and both international and domestic night flights are expected to start soon.
The area around Queenstown Airport is considered demanding due to the mountainous terrain that surrounds it -- some of which is close to the short runway.
The airport is also a busy one, and there are a lot of flights every day.
Lead consultant Geraint Bermingham said the runway is as long as can it can be, given the landscape.
The runway lighting has also been upgraded over the years, but the newest upgrades will mean it will come second only to Auckland International Airport.
"Even then, some features exceed even that fitted at Auckland," Mr Bermingham said.
"The other key requirements were for the airlines to build upon their own Queenstown daytime expertise with further advanced training for selected crews, and a package of additional support weather briefings and information for the crews," he said.