Southwest flight diverted to Logan Airport overnight

A Southwest flight from Baltimore was diverted to Logan International Airport early Wednesday due to heavy fog and an “inoperable instrument landing system” at its destination in Albany, N.Y. The aircraft landed in Boston at about 12:40 a.m. and it took passengers more than two hours to work through the Southwest line at Logan, according to Southwest spokeswoman Melissa Ford. All passengers were offered hotel vouchers, Ford said. With a new flight scheduled for 8:10 a.m., Ford cautioned that the heavy fog has been predicted to continue into the morning, possibly causing further delays.<br/>