Thanks for the information. Yes, my description was a bit "veiled". I''' fill in some gaps. We'll spend several days and nights in Barcelona, a day and night in Zaragoza, another couple days in Madrid, with an additional day trip to Toledo, then begin our trip on October 24.
Our original question had to do with the time from early morning on the 24th until the evening on the 25th. As we were planning the original itinerary, we checked the train from Madrid to Granada, the duration is approximately 5-1/2 hours (part of the route on the AVE). It appears there's a train that departs around at 9:00 and another at 11:00 hrs and both arrive in Granada around 5-1/2 hours later. We thought we'd familiarize our selves with the city, have dinner and get up early the next morning to visit the Alhambra. We'd plan to pre-purchase tickets and arrive at opening time (8:30) and plan to spend 4-5 hours there. Then go back to the hotel, pick up our luggage and head for the airport. We didn't check specific flights, but it appears as though the trip from Granada to Madrid and then to Lisbon would take about 5-3/4 hours (including a layover in Madrid). This would have us arriving in Lisbon around 20:00 hr, or thereabouts.
The "reconsider" part of the original question had to do with the 11 or so hours transportation getting from Madrid to Granada to Lisbon. The train from Madrid to Cordoba is about 1-3/4 hour and from Cordoba to Seville (by train) and Seville to Lisbon is about 4-1/2 hr. A total of around 7-1/4 hours. (better than 11, but still a lot of time moving).
The train from Madrid to Seville is around 2-1/2 hr. and the trip from Seville to Lisbon (bus and flight) is around 3-1/2 hrs or about 6 hrs.
So, rephrased, it it worth 3-1/2 hours more travel time to visit the Alhambra rather than to visit Cordoba, or is it worth 5 hours more travel time to visit the Alhambra rather than Seville?
I realize there are more details to work out on all the options, but this "first-pass" at least made us think we should at least ponder the three options and get some feed-back on this forum.