My wife and I will be flying from Bilbao to Lisbon this spring and I am looking at flights. I am considering using Iberia with a 1 hour layover in Madrid. It appears that Iberia operates out of Terminal 4 and I was wondering if that would be enough time between connections. I would appreciate any insights.
Would the entire journey be on one ticket? Looks like you are thinking about Iberia. If you would have separate tickets for each leg, I do not feel its enough time. If its all one ticket and you miss the connecting, Iberia is responsible for getting you to your destination.
Looking at a random date in May I see 1 or 2 flights per day that are direct. Seems to vary by day of the week if there is 1 or 2.
That is the option I would choose.
To directly address your question of 1 hr being enough, is dependent knowing if you have one or two tickets is essential..