| Thornton to Petersburg (Virginia) | 3,644.36 mi (5,865.03 km) |
| Thornton to Pflugerville (Texas) | 4,769.48 mi (7,675.73 km) |
| Thornton to Pharr (Texas) | 5,023.46 mi (8,084.47 km) |
| Thornton to Phelan (California) | 5,237.61 mi (8,429.12 km) |
| Thornton to Phenix City (Alabama) | 4,180.86 mi (6,728.44 km) |
| Thornton to Philadelphia (Pennsylvania) | 3,423.12 mi (5,508.97 km) |
| Thornton to Phillipsburg (New Jersey) | 3,393.65 mi (5,461.55 km) |
| Thornton to Phoenix (Arizona) | 5,111.78 mi (8,226.62 km) |
| Thornton to Phoenixville (Pennsylvania) | 3,432.38 mi (5,523.88 km) |
| Thornton to Picayune (Mississippi) | 4,462.10 mi (7,181.05 km) |
| Thornton to Pickerington (Ohio) | 3,725.13 mi (5,995.02 km) |
| Thornton to Pico Rivera (California) | 5,281.25 mi (8,499.35 km) |
| Thornton to Piedmont (California) | 5,182.14 mi (8,339.85 km) |
| Thornton to Pierre (South Dakota) | 4,136.09 mi (6,656.40 km) |
| Thornton to Pike Creek Valley (Delaware) | 3,458.24 mi (5,565.50 km) |
