Air+rail is not uncommon in markets with sufficiently developed high speed rail and regional rail (HSR pretty much decimated the London-Paris market, for instan

Air+rail is not uncommon in markets with sufficiently developed high speed rail and regional rail (HSR pretty much decimated the London-Paris market, for instance.) There’s been a bit of a movement in Europe to ban short haul connections since most European hubs are connected to rail, the issue is usually that the connection leaves a lot to be desired (e.g. rail is not in the controlled areas of airports, often there is no baggage through handling)