How to Upgrade to Business or First Class on Emirates?

For those passengers who want to travel with luxury, They can upgrade their economy or premium economy seat to Emirates first class in advance on Emirates’ website, during check-in or even after boarding their flight.To Emirates first class upgrade, you can call their customer service.

Source: https://www.airlinesgrouptravel.com/blog/how-to-upgrade-to-business-or-first-class-on-emirates