== S5 operating Shuttle routes == 

 Hi, 
 Flights from LGA-DCA (and vice versa) is still a Delta Shuttle flight. However, instead of using the MD88 on the route...it now uses the Embraer 145 aircraft on the route (http://www.usatoday.com/money/industries/travel/2008-12-15-delta-new-york-washington-routes_N.htm. Since Delta Shuttle is not airline...we list it as "Delta Air Lines operated by Shuttle America" to designate that it is a Delta Shuttle flight but it is flown using regional jets and i have included the source in which you wanted. Thanks!