According to the info on EC website,:
If you intend to visit more than one Schengen States, you should apply at the Consulate of the country where you will spend the longest period of time. If you intend to visit several Schengen States and the stays will be of equal length, you must apply at the Consulate of the first country you will visit.
What I don't know (and haven't been able to find through online searches) is that, if I'm making multiple separate trips and applying for a multiple-entry visa, should I apply to the country I will be spending the most time only in the first trip, or across all trips?
For example, if:
- June 5-15: First trip, consisting of 2 days in France and 8 days in Spain
- July 5-15: Second trip, consisting of 10 days in Greece
- August 5-10: Third trip, consisting of 5 days in Italy
Would I be applying to Spain (main destination for first entry to Schengen area) or Greece (longest duration of stay across all planned trips)?
I have looked at all the similar questions on Travel.SE but they focused on the question only for multiple countries in a single trip, but not multiple trips (multiple entries to the Schengen area).