You don't have much of a choice if you want asian girls. Like the other bro said, the only decent asian agency in mississauga is near square one which is too far away and since its only a 4hr layaway you don't have hotel room to get outcall. MW also has a mississauga branch but they put all of their least attractive girls there, and its also quite a distance from the airport as well.
You can try gwei mui by searching backpage or you can try sexyfriends and topdrawer ladies, i think they have girls near the airport.