Aeropuerto Internacional Miguel Hidalgo y Costilla (GDL) sits in Tlajomulco de Zúñiga, ~17 km south of central Guadalajara and ~25 km from Estadio Akron in Zapopan. There is no direct rail or BRT to GDL airport — your options are taxi (voucher-based, safe) or Uber/Didi. US fans need only a passport; Mexico's electronic FMM is auto-issued via the airline manifest. Operated by GAP (Aeropuertos GAP).
GDL is Mexico's third-busiest airport and the largest in western Mexico — heavy US-Mexico LCC traffic, especially Volaris and Viva Aerobus, plus AA, UA, DL, AS, WN, and Aeroméxico full-service.
Same as MEX: US fans need a passport; the electronic FMM is auto-issued via airline manifest; Mexico has no eTA / ESTA-style pre-arrival. INM has confirmed staffing increases at GDL for the tournament window.
There is no direct rail or Mi Macro BRT to GDL airport — your sane options are an authorized taxi (voucher-based at the desk inside arrivals) or Uber/Didi from the designated rideshare zone. Public bus is technically possible but slow and not luggage-friendly.