For Airport to Airport Visa Change, you need to have your Employment Visa on-hand and a round-trip confirmed air ticket back to Dubai.
You don't need to leave the airport at your destination (you are a Transit Passenger, no passing through Immigration/Passport control) as you only have to spend a few hours until your return flight back to Dubai, normally within a couple of hours or within the same day.
Below are the Most Popular Destination for an Airport to Airport Visa Run from Dubai because of cheap air fare, flexible flight schedules, and plenty of seats availability:
Airport to Airport Exit to Muscat, Oman
Airport to Airport Exit to Manama, Bahrain
Let us know your preferred travel date and we will provide you with best price for your round trip air ticket.