What are the destinations of the flights with air carrier description "Southeast Alaska Airlines: WEB"?
destinations refers to DEST; Southeast Alaska Airlines: WEB refers to Description = 'Southeast Alaska Airlines: WEB';
SELECT T2.DEST FROM `Air Carriers` AS T1 INNER JOIN Airlines AS T2 ON T1.Code = T2.OP_CARRIER_AIRLINE_ID WHERE T1.Description = 'Southeast Alaska Airlines: WEB'