To be honest then I think you could say most of them are "real" airports following your classification.
I'd say pretty much all of the airports in Italy would be served by Alitalia or its feeder carriers - Genoa, Palermo, Pisa, Turin etc. Many of the French airporits are probably served by somebody like Regional airlines which flies under the AF
banner. Then look at a lot of the other airports which many would consider obscure - Tampere - well finnair probably do domestic there and I guess blue1 fly too. Aarhus and Esbjers - SK
or their subsidiaries certainly do those. Salzburg, Linz, Graz and Klagenfurt in Austria all have OS
services out of there.
Riga of course will be served by the major alliances. Eindhoven - KLM of course. Most of the UK and Ireland ones too - appart from a couple of exceptions.
If anything the majority of airports which do not fall under your definition are the FR
bases - such as Hahn, Charleroi, Milan Orio, Girona, Rome Ciamapino and Prestwick. Which is why they have been developed by Ryanair. There are of course some others too like my beloved Newquay Airport (which was a BA
destination too until recently) or Blackpool.
But certainly most of the destinations are "real aiports" if we take your definition.
And before anyone says it - I'm no defender of Ryanair (give me full service out of LHR
any day!!) - but I'm happy to point out the indesputable facts. Many of the airports they serve are not the main ones for a city or the largest destinations, but most of them do have other more traditional operators serving them too to some extent.
Just when I thought I could see light at the end of the tunnel, it was some B*****d with a torch bringing me more work