| Rialto to Pottstown (Pennsylvania) | 2,314.83 mi (3,725.36 km) |
| Rialto to Pottsville (Pennsylvania) | 2,283.88 mi (3,675.55 km) |
| Rialto to Poughkeepsie (New York) | 2,400.38 mi (3,863.03 km) |
| Rialto to Poulsbo (Washington) | 979.84 mi (1,576.91 km) |
| Rialto to Poway (California) | 80.94 mi (130.27 km) |
| Rialto to Powder Springs (Georgia) | 1,865.52 mi (3,002.27 km) |
| Rialto to Powell (Ohio) | 1,922.56 mi (3,094.05 km) |
| Rialto to Powell (Tennessee) | 1,881.78 mi (3,028.43 km) |
| Rialto to Prairie Ridge (Washington) | 933.41 mi (1,502.18 km) |
| Rialto to Prairie Village (Kansas) | 1,303.08 mi (2,097.10 km) |
| Rialto to Prairieville (Louisiana) | 1,562.77 mi (2,515.04 km) |
| Rialto to Prattville (Alabama) | 1,783.38 mi (2,870.08 km) |
| Rialto to Preakness (New Jersey) | 2,386.83 mi (3,841.23 km) |
| Rialto to Prescott (Arizona) | 283.72 mi (456.60 km) |
| Rialto to Prescott Valley (Arizona) | 291.09 mi (468.47 km) |
