| Streator to Olympia (Washington) | 1,724.79 mi (2,775.79 km) |
| Streator to Olympia Heights (Florida) | 1,169.84 mi (1,882.67 km) |
| Streator to Omaha (Nebraska) | 375.56 mi (604.41 km) |
| Streator to On Top of the World Designated Place (Florida) | 908.32 mi (1,461.80 km) |
| Streator to Onalaska (Wisconsin) | 226.11 mi (363.88 km) |
| Streator to Oneida (New York) | 687.61 mi (1,106.60 km) |
| Streator to Oneonta (New York) | 714.14 mi (1,149.30 km) |
| Streator to Ontario (California) | 1,641.32 mi (2,641.45 km) |
| Streator to Ontario (Oregon) | 1,438.89 mi (2,315.68 km) |
| Streator to Opa-locka (Florida) | 1,160.64 mi (1,867.87 km) |
| Streator to Opelika (Alabama) | 614.95 mi (989.66 km) |
| Streator to Opelousas (Louisiana) | 754.50 mi (1,214.24 km) |
| Streator to Orange (California) | 1,659.56 mi (2,670.80 km) |
| Streator to Orange (Texas) | 808.65 mi (1,301.40 km) |
| Streator to Orange City (Florida) | 943.19 mi (1,517.92 km) |
