| Ostrow Mazowiecka to Arcore | 751.57 mi (1,209.53 km) |
| Ostrow Mazowiecka to Ardea | 886.94 mi (1,427.39 km) |
| Ostrow Mazowiecka to Arenzano | 835.01 mi (1,343.81 km) |
| Ostrow Mazowiecka to Arese | 764.13 mi (1,229.75 km) |
| Ostrow Mazowiecka to Arezzo | 791.95 mi (1,274.53 km) |
| Ostrow Mazowiecka to Argelato | 743.11 mi (1,195.91 km) |
| Ostrow Mazowiecka to Argenta | 726.92 mi (1,169.86 km) |
| Ostrow Mazowiecka to Ariano Irpino | 865.49 mi (1,392.86 km) |
| Ostrow Mazowiecka to Ariccia | 878.08 mi (1,413.14 km) |
| Ostrow Mazowiecka to Arluno | 771.12 mi (1,241.00 km) |
| Ostrow Mazowiecka to Arona | 771.45 mi (1,241.53 km) |
| Ostrow Mazowiecka to Artena | 871.42 mi (1,402.42 km) |
| Ostrow Mazowiecka to Arzachena | 998.93 mi (1,607.62 km) |
| Ostrow Mazowiecka to Arzano | 895.56 mi (1,441.27 km) |
| Ostrow Mazowiecka to Arzignano | 692.31 mi (1,114.16 km) |
