Trust UBER for early am. Ride to Porto Airport?

I took a taxi from the Porto airport into town and it was great. The taxi driver was really chatty and gave me a whole history of Porto and told me places to go which turned out great. I did not try uber but I don't think you need to as the taxi's are efficient and cheap.

I have an axiom I always remind to myself whenever I am contemplating using Uber:

If you want to save a few bucks, Uber usually will get me where I need to go and won't cost a lot.

If I really need to be someplace, and I need to be sure I'll get there on time - take a taxi.

As flawed and problematic as taxis can be (and they certainly can be, especially in a foreign place you do not know), Uber is always a roll of the dice. Sometimes you roll a good number, sometimes you get...snake-eyes.

I would never, ever rely on an Uber to get me to an early morning flight (especially one that would have dire consequences if I missed). If I were you, I would arrange a taxi (make the arrangement the day before). It may also help to have your hotel make the call to arrange the taxi for you (they will have more long-term skin in that game, you will be gone forever by the next sunset). If you want to risk Uber, I'd suggest: you pad your time by a full hour. If the Uber fails to show up by 30 minutes past your requested pickup time, then call a cab as a Plan B (have a working number for a real cab company ready).

I agree with David.
I'm not anti-UBER, it's often a reasonable choice in the US, but generally speaking, taxis in European cities are the better choice. I travel as a single woman and use taxis frequently.

Licensed taxi....always....it’s their job.

Even with GPS Uber is a crap shoot...

The Porto Metro line to the airport is excellent.

Use a taxi. Really cheap and better service.

I will just speak to Uber reliability in Portugal, then it’s, obviously, your decision to go with them or with a taxi.

As I live in the Lisbon area without a car, I take Uber fairly regularly. Of course, there have been a few times, when there were problems, but on the whole, I consider them very reliable. There is now the option of scheduling ahead - at least in this area, but not certain about Porto.

You can always start out a few minutes early if you have concerns. But, if you are concerned, it might be worth the few euros to just go with a taxi. Taxis and Uber are both quite inexpensive in Portugal compared with a lot of places.

Thanks, all of you, for taking time to reply. Seems you are all in Agreement re. taxi as safer bet. Glad to get the advice,
So Grateful for your comments! Kirbyfred