Hi
@Carmel O Riordan, welcome to the forum. Do you have particular and especial reasons for walking Estella to Belorado? I ask because a quick look at
www.rome2rio.com suggests you are setting yourself up for some fairly complex logistics. Both journeys are possible, but complex and you may find that you need 4 days of your week just to get from and to the airport. Conda
If you just want to spend some time on camino then there are a variety of possible routes that you could take while avoiding some of the logistical complexities.