| Odivelas to Olympia Heights (Florida) | 4,151.63 mi (6,681.40 km) |
| Odivelas to Omaha (Nebraska) | 4,392.17 mi (7,068.52 km) |
| Odivelas to On Top of the World Designated Place (Florida) | 4,133.58 mi (6,652.36 km) |
| Odivelas to Onalaska (Wisconsin) | 4,089.54 mi (6,581.47 km) |
| Odivelas to Oneida (New York) | 3,390.87 mi (5,457.08 km) |
| Odivelas to Oneonta (New York) | 3,376.33 mi (5,433.68 km) |
| Odivelas to Ontario (California) | 5,636.29 mi (9,070.72 km) |
| Odivelas to Ontario (Oregon) | 5,160.35 mi (8,304.77 km) |
| Odivelas to Opa-locka (Florida) | 4,140.83 mi (6,664.02 km) |
| Odivelas to Opelika (Alabama) | 4,170.04 mi (6,711.03 km) |
| Odivelas to Opelousas (Louisiana) | 4,584.28 mi (7,377.69 km) |
| Odivelas to Orange (California) | 5,656.33 mi (9,102.98 km) |
| Odivelas to Orange (Texas) | 4,683.57 mi (7,537.47 km) |
| Odivelas to Orange City (Florida) | 4,087.46 mi (6,578.14 km) |
| Odivelas to Orangeburg (South Carolina) | 3,913.22 mi (6,297.72 km) |
