The Central Illinois Regional Airport terminal has reopened after several hours.
The Secretary of State Police Bomb Squad determined a suspicious piece of carry on luggage was harmless.
A passenger detained earlier for questioning has been released.
Airport Spokesperson Fran Strebing said a delayed outbound flight to Atlanta is prepping to resume. Other flights, she said, will operate as scheduled. Passengers on the inbound flight from Atlanta were allowed to leave without their luggage during the terminal evacuation and can collect their bags later.
Connect Transit supplied a bus to move people to Empire Street. The incident began at about 10:30 a.m. and the bomb squad arrived about 12:30p.m. Strebing gave the public all clear to reporters about 1:20 p.m.
Strebing said she believes this is the first time the airport terminal in Bloomington has been entirely shut down, though there have been lesser alerts over the years.