| Napa to Pittsburg (Kansas) | 1,501.46 mi (2,416.37 km) |
| Napa to Pittsburgh (Pennsylvania) | 2,243.94 mi (3,611.27 km) |
| Napa to Pittsfield (Massachusetts) | 2,561.29 mi (4,122.00 km) |
| Napa to Placentia (California) | 393.26 mi (632.89 km) |
| Napa to Placerville (California) | 86.60 mi (139.37 km) |
| Napa to Plainfield (Illinois) | 1,807.33 mi (2,908.62 km) |
| Napa to Plainfield (Indiana) | 1,918.84 mi (3,088.08 km) |
| Napa to Plainfield (New Jersey) | 2,527.90 mi (4,068.27 km) |
| Napa to Plainview (New York) | 2,573.60 mi (4,141.81 km) |
| Napa to Plainview (Texas) | 1,178.51 mi (1,896.63 km) |
| Napa to Plano (Illinois) | 1,791.41 mi (2,882.99 km) |
| Napa to Plano (Texas) | 1,474.11 mi (2,372.35 km) |
| Napa to Plant City (Florida) | 2,409.42 mi (3,877.59 km) |
| Napa to Plantation (Florida) | 2,572.35 mi (4,139.80 km) |
| Napa to Platteville (Wisconsin) | 1,689.55 mi (2,719.07 km) |
