The passenger planes made emergency landings in Chile and Peru Thursday and were met by explosive units. The airport was evacuated and closed, and emergency services investigated the incident.
Some of the planes are owned by South American air carrier LATAM, formed as a result of merger between Chile's LAN and Brazil's TAM, the rest belongs to Chile's Sky Airlines. "Right now the situation is under control", it said on Twitter.
Several airliners were forced to make emergency landings or turn back to their original airports in Chile and Peru. Other planes had already reached their destination or had not taken off.
Chile's capital Santiago was either the origination or the destination for four out of five flights - inspections of three of planes found no bombs, and at least one was allowed to resume its flight. A total of 11 bomb threats were made, but authorities deemed two of these "fictitious", as they related to flights that were not operating.
Sky said another of its planes, Flight 166, was prevented from taking off from Santiago because of a bomb threat.
"We always have an abandoned suitcase or two, that's normal", Chilean Civil Aviation Authority head Victor Villalobos Collao told a press conference at Santiago airport, "But this is a totally exceptional case". "Our technical teams used georeferencing to determine their locations, which led to the arrest of an individual, 29, with no prior record", said Rojas.