| Klamath Falls to Oakley (California) | 292.06 mi (470.03 km) |
| Klamath Falls to Oakton (Virginia) | 2,319.53 mi (3,732.92 km) |
| Klamath Falls to Oakville (Missouri) | 1,667.41 mi (2,683.44 km) |
| Klamath Falls to Oatfield (Oregon) | 224.35 mi (361.06 km) |
| Klamath Falls to Ocala (Florida) | 2,373.08 mi (3,819.11 km) |
| Klamath Falls to Ocean Acres (New Jersey) | 2,451.07 mi (3,944.62 km) |
| Klamath Falls to Ocean City (New Jersey) | 2,446.25 mi (3,936.86 km) |
| Klamath Falls to Ocean Pines (Maryland) | 2,440.50 mi (3,927.60 km) |
| Klamath Falls to Ocean Pointe (Hawaii) | 2,543.43 mi (4,093.26 km) |
| Klamath Falls to Ocean Springs (Mississippi) | 1,993.63 mi (3,208.44 km) |
| Klamath Falls to Oceanside (California) | 667.45 mi (1,074.15 km) |
| Klamath Falls to Oceanside (New York) | 2,462.81 mi (3,963.51 km) |
| Klamath Falls to Ocoee (Florida) | 2,427.07 mi (3,905.98 km) |
| Klamath Falls to Oconomowoc (Wisconsin) | 1,680.96 mi (2,705.24 km) |
| Klamath Falls to Odenton (Maryland) | 2,345.94 mi (3,775.43 km) |
