I'm crushed! Spent the day searching for flights to Porto and pulled out my credit card and paid. Only afterward did passport info show on the booking site informing me that mine, which expires on 30 December 2022 would not allow me into Portugal because the expiration date was less than 90 days from my return flight. Even with extra fees for "expedited" processing, 5-7 weeks is the stated processing time for a passport renewal. I had assumed that an expiration two months after my return would do fine until the rude awakening. The airline is cancelling my reservation and returning payment since I booked less than an hour before and I will go ahead with a passport application, but whether I can start my Camino as planned is seriously doubtful. Few people will be caught in this bind, but it's something I wish I had been aware of!