| Castro Valley to Arcore | 5,934.83 mi (9,551.18 km) |
| Castro Valley to Ardea | 6,254.66 mi (10,065.90 km) |
| Castro Valley to Arenzano | 5,984.33 mi (9,630.85 km) |
| Castro Valley to Arese | 5,932.24 mi (9,547.02 km) |
| Castro Valley to Arezzo | 6,130.15 mi (9,865.52 km) |
| Castro Valley to Argelato | 6,052.06 mi (9,739.84 km) |
| Castro Valley to Argenta | 6,063.48 mi (9,758.23 km) |
| Castro Valley to Ariano Irpino | 6,353.91 mi (10,225.62 km) |
| Castro Valley to Ariccia | 6,252.34 mi (10,062.16 km) |
| Castro Valley to Arluno | 5,931.15 mi (9,545.26 km) |
| Castro Valley to Arona | 5,906.12 mi (9,504.98 km) |
| Castro Valley to Artena | 6,258.62 mi (10,072.27 km) |
| Castro Valley to Arzachena | 6,189.74 mi (9,961.43 km) |
| Castro Valley to Arzano | 6,344.36 mi (10,210.27 km) |
| Castro Valley to Arzignano | 5,998.46 mi (9,653.59 km) |
