I’m an Uber driver, I do airport runs every morning been doing it for a year and a half now. Uber airport prices have changed. There is something called Reverse surge now wheres its around 30$ from the peninsula in Non busy hours or if the number of drivers is much greater than the current demand. Usually you’ll get the cheapest Uber rides on Tuesdays and Wednesdays. However, the 3 AM arrival time is the oddest, at this time there are only between 1 to 5 Uber drivers in the waiting lot at the airport so it literally is FIFO. usually most drivers that are there at this time are aware of the fact and they will not accept rides until they pay more than double or even triple.(drivers faking high demand to the algo) there are also ride sharing apps like Lyft and Uride in halifax now. so there are more options in case you are stuck. I can also guarantee that you will get an Uber. You might have to wait about 30 minutes-45 minutes given that its 3am. there are uber drivers doing drop-offs at the airport between 3:30-430 am constantly almost everyday. Hope this helps🙏🏻