| Napa to Anoka (Minnesota) | 1,555.21 mi (2,502.87 km) |
| Napa to Ansonia (Connecticut) | 2,585.92 mi (4,161.63 km) |
| Napa to Antelope (California) | 58.45 mi (94.07 km) |
| Napa to Anthem (Arizona) | 645.68 mi (1,039.12 km) |
| Napa to Antioch (California) | 35.19 mi (56.63 km) |
| Napa to Antioch (Illinois) | 1,811.80 mi (2,915.82 km) |
| Napa to Apache Junction (Arizona) | 690.79 mi (1,111.72 km) |
| Napa to Apex (North Carolina) | 2,380.56 mi (3,831.14 km) |
| Napa to Apollo Beach (Florida) | 2,402.43 mi (3,866.34 km) |
| Napa to Apopka (Florida) | 2,419.53 mi (3,893.86 km) |
| Napa to Apple Valley (California) | 384.16 mi (618.24 km) |
| Napa to Apple Valley (Minnesota) | 1,560.46 mi (2,511.32 km) |
| Napa to Appleton (Wisconsin) | 1,794.76 mi (2,888.38 km) |
| Napa to Arbutus (Maryland) | 2,431.36 mi (3,912.90 km) |
| Napa to Arcadia (California) | 373.04 mi (600.36 km) |
