| Spokane to Olympia (Washington) | 259.28 mi (417.26 km) |
| Spokane to Olympia Heights (Florida) | 2,515.71 mi (4,048.64 km) |
| Spokane to Omaha (Nebraska) | 1,138.60 mi (1,832.41 km) |
| Spokane to On Top of the World Designated Place (Florida) | 2,265.22 mi (3,645.52 km) |
| Spokane to Onalaska (Wisconsin) | 1,283.93 mi (2,066.28 km) |
| Spokane to Oneida (New York) | 2,026.95 mi (3,262.06 km) |
| Spokane to Oneonta (New York) | 2,072.14 mi (3,334.78 km) |
| Spokane to Ontario (California) | 941.63 mi (1,515.41 km) |
| Spokane to Ontario (Oregon) | 252.54 mi (406.43 km) |
| Spokane to Opa-locka (Florida) | 2,510.44 mi (4,040.16 km) |
| Spokane to Opelika (Alabama) | 1,963.86 mi (3,160.52 km) |
| Spokane to Opelousas (Louisiana) | 1,788.11 mi (2,877.68 km) |
| Spokane to Orange (California) | 958.07 mi (1,541.87 km) |
| Spokane to Orange (Texas) | 1,744.46 mi (2,807.44 km) |
| Spokane to Orange City (Florida) | 2,316.73 mi (3,728.42 km) |
