| Fergus Falls to Oakley (California) | 1,423.98 mi (2,291.68 km) |
| Fergus Falls to Oakton (Virginia) | 1,079.38 mi (1,737.09 km) |
| Fergus Falls to Oakville (Missouri) | 615.69 mi (990.86 km) |
| Fergus Falls to Oatfield (Oregon) | 1,271.71 mi (2,046.61 km) |
| Fergus Falls to Ocala (Florida) | 1,401.06 mi (2,254.78 km) |
| Fergus Falls to Ocean Acres (New Jersey) | 1,185.39 mi (1,907.70 km) |
| Fergus Falls to Ocean City (New Jersey) | 1,187.16 mi (1,910.56 km) |
| Fergus Falls to Ocean Pines (Maryland) | 1,195.11 mi (1,923.34 km) |
| Fergus Falls to Ocean Pointe (Hawaii) | 3,839.34 mi (6,178.83 km) |
| Fergus Falls to Ocean Springs (Mississippi) | 1,164.69 mi (1,874.38 km) |
| Fergus Falls to Oceanside (California) | 1,436.43 mi (2,311.72 km) |
| Fergus Falls to Oceanside (New York) | 1,186.40 mi (1,909.32 km) |
| Fergus Falls to Ocoee (Florida) | 1,455.29 mi (2,342.07 km) |
| Fergus Falls to Oconomowoc (Wisconsin) | 432.28 mi (695.69 km) |
| Fergus Falls to Odenton (Maryland) | 1,099.70 mi (1,769.79 km) |
