| Richfield to Olympia (Washington) | 1,421.63 mi (2,287.89 km) |
| Richfield to Olympia Heights (Florida) | 1,506.86 mi (2,425.05 km) |
| Richfield to Omaha (Nebraska) | 286.11 mi (460.45 km) |
| Richfield to On Top of the World Designated Place (Florida) | 1,244.53 mi (2,002.88 km) |
| Richfield to Onalaska (Wisconsin) | 123.13 mi (198.16 km) |
| Richfield to Oneida (New York) | 883.11 mi (1,421.23 km) |
| Richfield to Oneonta (New York) | 923.65 mi (1,486.47 km) |
| Richfield to Ontario (California) | 1,489.56 mi (2,397.21 km) |
| Richfield to Ontario (Oregon) | 1,165.92 mi (1,876.37 km) |
| Richfield to Opa-locka (Florida) | 1,498.13 mi (2,411.01 km) |
| Richfield to Opelika (Alabama) | 944.23 mi (1,519.58 km) |
| Richfield to Opelousas (Louisiana) | 993.71 mi (1,599.21 km) |
| Richfield to Orange (California) | 1,509.27 mi (2,428.93 km) |
| Richfield to Orange (Texas) | 1,019.71 mi (1,641.07 km) |
| Richfield to Orange City (Florida) | 1,282.23 mi (2,063.55 km) |
