Needing to be in the top six to make the final, Coady improved her score to 76.25 but it wasn’t enough to progress as she finished 5.25 points away from the cut-off.
"I was super happy with how I went," Coady said.
"It was a bit challenging as we only had a couple of hours practice on the jump but I was really happy with how it turned out."
World Champion Anna Gasser of Austria claimed the victory in the final ahead of Great Britain’s Katie Ormerod and Switzerland’s Sina Candrian.
On what was her Big Air World Cup debut in Milan, Coady was the youngest in the field and despite not making the final it was a positive result for her having only started competing on the international scene at the start of the year.
"It's super cool to be one of the younger riders out there," Coady continued.
"I hope to improve my riding so I can be making the finals in these big airs in the future."
The young gun rose to prominence by claiming both the Big Air and Slopestyle Junior World Championships in the space of a couple of days in April.
She is now looking forward to the next event on her schedule.
"I am off to Copper (Colarado) for the Big Air next and I would be stoked to get some solid tricks landed and be up in the mix with the top riders."