| Sonoma to Olympia (Washington) | 605.07 mi (973.77 km) |
| Sonoma to Olympia Heights (Florida) | 2,590.54 mi (4,169.08 km) |
| Sonoma to Omaha (Nebraska) | 1,411.64 mi (2,271.81 km) |
| Sonoma to On Top of the World Designated Place (Florida) | 2,374.76 mi (3,821.81 km) |
| Sonoma to Onalaska (Wisconsin) | 1,662.10 mi (2,674.89 km) |
| Sonoma to Oneida (New York) | 2,442.14 mi (3,930.24 km) |
| Sonoma to Oneonta (New York) | 2,478.76 mi (3,989.18 km) |
| Sonoma to Ontario (California) | 399.32 mi (642.64 km) |
| Sonoma to Ontario (Oregon) | 488.04 mi (785.42 km) |
| Sonoma to Opa-locka (Florida) | 2,588.98 mi (4,166.55 km) |
| Sonoma to Opelika (Alabama) | 2,108.00 mi (3,392.49 km) |
| Sonoma to Opelousas (Louisiana) | 1,803.53 mi (2,902.50 km) |
| Sonoma to Orange (California) | 403.88 mi (649.98 km) |
| Sonoma to Orange (Texas) | 1,725.92 mi (2,777.61 km) |
| Sonoma to Orange City (Florida) | 2,434.08 mi (3,917.27 km) |
