| Trondheim to Oakley (California) | 4,952.82 mi (7,970.79 km) |
| Trondheim to Oakton (Virginia) | 3,790.79 mi (6,100.69 km) |
| Trondheim to Oakville (Missouri) | 4,186.56 mi (6,737.62 km) |
| Trondheim to Oatfield (Oregon) | 4,489.98 mi (7,225.93 km) |
| Trondheim to Ocala (Florida) | 4,508.17 mi (7,255.20 km) |
| Trondheim to Ocean Acres (New Jersey) | 3,652.36 mi (5,877.90 km) |
| Trondheim to Ocean City (New Jersey) | 3,689.16 mi (5,937.12 km) |
| Trondheim to Ocean Pines (Maryland) | 3,756.27 mi (6,045.14 km) |
| Trondheim to Ocean Pointe (Hawaii) | 6,547.84 mi (10,537.74 km) |
| Trondheim to Ocean Springs (Mississippi) | 4,627.41 mi (7,447.09 km) |
| Trondheim to Oceanside (California) | 5,172.12 mi (8,323.72 km) |
| Trondheim to Oceanside (New York) | 3,582.40 mi (5,765.32 km) |
| Trondheim to Ocoee (Florida) | 4,525.79 mi (7,283.56 km) |
| Trondheim to Oconomowoc (Wisconsin) | 3,862.29 mi (6,215.75 km) |
| Trondheim to Odenton (Maryland) | 3,762.65 mi (6,055.41 km) |
