Terminals at TUS

Ten minutes is the realistic max for an A↔B trek at TUS The Main Terminal at Tucson International has 20 gates split into two security zones: Concourse A on one side, and Concourses B/C on the other. There is no airside connector between them. Any Alaska, American, Delta, Frontier, Southwest, Sun Country, or United passenger changing concourses has to go down to baggage claim, cross landside, and clear TSA again before heading back up to the new gate.…