| San Mateo to Arcore | 5,951.20 mi (9,577.54 km) |
| San Mateo to Ardea | 6,271.08 mi (10,092.32 km) |
| San Mateo to Arenzano | 6,000.82 mi (9,657.39 km) |
| San Mateo to Arese | 5,948.64 mi (9,573.40 km) |
| San Mateo to Arezzo | 6,146.50 mi (9,891.84 km) |
| San Mateo to Argelato | 6,068.38 mi (9,766.11 km) |
| San Mateo to Argenta | 6,079.77 mi (9,784.44 km) |
| San Mateo to Ariano Irpino | 6,370.18 mi (10,251.82 km) |
| San Mateo to Ariccia | 6,268.74 mi (10,088.56 km) |
| San Mateo to Arluno | 5,947.55 mi (9,571.66 km) |
| San Mateo to Arona | 5,922.53 mi (9,531.40 km) |
| San Mateo to Artena | 6,275.01 mi (10,098.65 km) |
| San Mateo to Arzachena | 6,206.38 mi (9,988.20 km) |
| San Mateo to Arzano | 6,360.71 mi (10,236.58 km) |
| San Mateo to Arzignano | 6,014.72 mi (9,679.76 km) |
