Never hail a taxi off the street
In Budapest, it's easy to uncover horror stories about individuals being ripped off by taxi drivers. However, avoiding the starring role in the following one is straightforward.
To summarize, always call a reliable taxi company and request to be picked up from your current location. Never flag down a cab on the side of the road. You can utilize F Taxi and City Taxi on your vacation, and both have a fantastic track record. Even if you use these services, make sure the meter is turned on before leaving. If it isn't turned on, don't be scared to ask your river to do so.
At Budapest Airport, there will be plenty of drivers soliciting business. Ignore them, just outside the arrivals hall is an official taxi rank maintained by the reputed service F Taxi.