| Wooster to Olympia (Washington) | 2,058.52 mi (3,312.87 km) |
| Wooster to Olympia Heights (Florida) | 1,046.85 mi (1,684.74 km) |
| Wooster to Omaha (Nebraska) | 735.64 mi (1,183.90 km) |
| Wooster to On Top of the World Designated Place (Florida) | 809.42 mi (1,302.64 km) |
| Wooster to Onalaska (Wisconsin) | 518.51 mi (834.45 km) |
| Wooster to Oneida (New York) | 357.98 mi (576.11 km) |
| Wooster to Oneonta (New York) | 372.10 mi (598.83 km) |
| Wooster to Ontario (California) | 1,997.83 mi (3,215.20 km) |
| Wooster to Ontario (Oregon) | 1,787.40 mi (2,876.54 km) |
| Wooster to Opa-locka (Florida) | 1,035.18 mi (1,665.96 km) |
| Wooster to Opelika (Alabama) | 594.76 mi (957.18 km) |
| Wooster to Opelousas (Louisiana) | 909.73 mi (1,464.07 km) |
| Wooster to Orange (California) | 2,015.79 mi (3,244.09 km) |
| Wooster to Orange (Texas) | 992.55 mi (1,597.35 km) |
| Wooster to Orange City (Florida) | 821.80 mi (1,322.56 km) |
