Additional security measures took effect over the weekend following the failed bombing attempt of a Northwest Airlines plane on Christmas Day.
Nigerian terror suspect Umar Farouk Abdulmutallab, 23, burned himself as he allegedly tried to ignite a highly explosive powder mixture that he had taped to his leg on the flight from Amsterdam to Detroit.
On Sunday, Abdulmutallab was released from a Michigan hospital and moved to a federal prison about 50 miles from Detroit.
In the wake of the attack, Janet Napolitano, Secretary of the Department of Homeland Security, recommended that airline passengers get to the airport they are departing from a little earlier than usual.
"There will be some additional measures," Secretary Napolitano said. "We won't do the same thing at every airport...because one of the things we try not to be is predictable."
Theon Jones, of Cleveland Heights, flew back to Cleveland from Las Vegas on Sunday.
"Yes, the (security) lines were longer," Jones said. "But they did a thorough job."
Moreland Hills resident Raquel Haas said that she did not notice a difference in security at LaGuardia Airport on Sunday.
"It was the same security," Haas said.
But there are noticable changes on some international flights. Passengers are required to stay seated for the final hour of the flight and are not allowed to use the bathroom or have anything in their laps.
Andrew Thomas, an assistant professor at The University of Akron, has written several books on aviation security. Thomas believes that the focus of aviation security needs to change.
"Technology will not be the solution (to terrorism of commerical airliners)," Thomas said. "The solution must be humans, because the threat is human.
"We need to focus again on these bad people," said Thomas. "That's where the threat comes from."