Finnair uses DC-9 between Helsinki and Tallinn, Estonia sometimes. Distance is 63 miles. (Somehow, however, flight time is quite long - 40 min - and they offer chocolate during flight).
other:
Swissair flys MD-83 between Zurich to Basel. Distance 49 miles, flying time 30 min. Not sure about service.


[This message has been edited by fokker50 (edited 11-15-2000).]