| Porto de Mos to Odessa (Texas) | 5,027.08 mi (8,090.31 km) |
| Porto de Mos to Ogden (Utah) | 5,060.77 mi (8,144.52 km) |
| Porto de Mos to Oildale (California) | 5,611.90 mi (9,031.48 km) |
| Porto de Mos to Ojus (Florida) | 4,142.77 mi (6,667.14 km) |
| Porto de Mos to Okemos (Michigan) | 3,802.03 mi (6,118.78 km) |
| Porto de Mos to Oklahoma City (Oklahoma) | 4,657.50 mi (7,495.52 km) |
| Porto de Mos to Okmulgee (Oklahoma) | 4,581.05 mi (7,372.49 km) |
| Porto de Mos to Olathe (Kansas) | 4,406.15 mi (7,091.01 km) |
| Porto de Mos to Old Jamestown (Missouri) | 4,196.54 mi (6,753.68 km) |
| Porto de Mos to Oldsmar (Florida) | 4,196.27 mi (6,753.24 km) |
| Porto de Mos to Olean (New York) | 3,538.58 mi (5,694.79 km) |
| Porto de Mos to Olive Branch (Mississippi) | 4,309.48 mi (6,935.44 km) |
| Porto de Mos to Olivehurst (California) | 5,539.50 mi (8,914.96 km) |
| Porto de Mos to Olney (Maryland) | 3,551.75 mi (5,715.99 km) |
| Porto de Mos to Olympia (Washington) | 5,208.71 mi (8,382.61 km) |
