| Winfield to Olympia (Washington) | 1,480.87 mi (2,383.22 km) |
| Winfield to Olympia Heights (Florida) | 1,259.27 mi (2,026.60 km) |
| Winfield to Omaha (Nebraska) | 279.73 mi (450.19 km) |
| Winfield to On Top of the World Designated Place (Florida) | 1,016.57 mi (1,636.01 km) |
| Winfield to Onalaska (Wisconsin) | 547.09 mi (880.45 km) |
| Winfield to Oneida (New York) | 1,189.23 mi (1,913.89 km) |
| Winfield to Oneonta (New York) | 1,210.54 mi (1,948.18 km) |
| Winfield to Ontario (California) | 1,178.49 mi (1,896.60 km) |
| Winfield to Ontario (Oregon) | 1,144.90 mi (1,842.54 km) |
| Winfield to Opa-locka (Florida) | 1,254.78 mi (2,019.37 km) |
| Winfield to Opelika (Alabama) | 727.95 mi (1,171.52 km) |
| Winfield to Opelousas (Louisiana) | 543.28 mi (874.33 km) |
| Winfield to Orange (California) | 1,195.10 mi (1,923.33 km) |
| Winfield to Orange (Texas) | 526.93 mi (848.01 km) |
| Winfield to Orange City (Florida) | 1,071.84 mi (1,724.96 km) |
