| Santiago Metro Line A | 
|---|
|  | 
|
| Status | Approved and under planning | 
|---|
| Owner | Empresa de Transporte de Pasajeros Metro S.A. | 
|---|
| Locale | Santiago | 
|---|
| Termini | HuelénAeropuerto Internacional Arturo Merino Benítez
 | 
|---|
| Stations | 2 | 
|---|
|
| Type | Rapid transit | 
|---|
| System | Santiago Metro, Transantiago | 
|---|
| Services | 1 | 
|---|
| Operator(s) | Empresa de Transporte de Pasajeros Metro S.A. | 
|---|
|
| Planned opening | 2032 | 
|---|
|
| Line length | 6.5 km (4.0 mi) | 
|---|
| Character | Underground | 
|---|
| Electrification | 1,500 V DC overhead catenary | 
|---|
| 
|   
|  |  
| 
 
|  |  | 
 |  | Huelén |   
|  |  | 
 |  | Aeropuerto Internacional Arturo Merino Benítez
 |  
|  |  |  |  |  |  |  |  |  
|  |  |  | 
Line A is a planned rapid transit line of the Santiago Metro, whose construction is planned to begin in 2027 and whose opening is planned in 2032. It is intended to connect the Arturo Merino Benítez International Airport to Line 7 (which is under construction and planned to be opened in 2028) and to the rest of the metro network. It will add 2 new stations and 6.5 km (4.0 mi) of track to the metro system. It will start at the future Huelén interchange station in Cerro Navia, connecting it with Line 7, and will end in the northwest, at the future Aeropuerto Internacional Arturo Merino Benítez station of the airport in Pudahuel. When the line is opened, Santiago will become  the first city in South America with a direct connection between its metro network and its international airport. The entire line will be underground. Its distinctive color on the network line map is turquoise. The cost of construction has been set at $365 million USD.