Avianca is in Star Alliance with United.
Both of the new routes will open up more than 2,500 new seats each between destinations.
Flights between Miami and Guatemala will run using Airbus A320 aircraft.
Scenic morning view through the iconic Santa Catalina Arch in Antigua, Guatemala at the Volcán de Agua.Credit:Kryssia Campos/Getty Images
Avianca is committed to strengthening its data pipe and providing travelers with more options, said Damas also said.