| San Giovanni Rotondo to Odessa (Texas) | 6,008.79 mi (9,670.21 km) |
| San Giovanni Rotondo to Ogden (Utah) | 5,841.69 mi (9,401.29 km) |
| San Giovanni Rotondo to Oildale (California) | 6,387.82 mi (10,280.20 km) |
| San Giovanni Rotondo to Ojus (Florida) | 5,331.25 mi (8,579.82 km) |
| San Giovanni Rotondo to Okemos (Michigan) | 4,783.73 mi (7,698.67 km) |
| San Giovanni Rotondo to Oklahoma City (Oklahoma) | 5,638.41 mi (9,074.15 km) |
| San Giovanni Rotondo to Okmulgee (Oklahoma) | 5,572.05 mi (8,967.35 km) |
| San Giovanni Rotondo to Olathe (Kansas) | 5,366.48 mi (8,636.51 km) |
| San Giovanni Rotondo to Old Jamestown (Missouri) | 5,190.61 mi (8,353.48 km) |
| San Giovanni Rotondo to Oldsmar (Florida) | 5,354.36 mi (8,617.01 km) |
| San Giovanni Rotondo to Olean (New York) | 4,565.16 mi (7,346.92 km) |
| San Giovanni Rotondo to Olive Branch (Mississippi) | 5,353.10 mi (8,614.99 km) |
| San Giovanni Rotondo to Olivehurst (California) | 6,244.22 mi (10,049.10 km) |
| San Giovanni Rotondo to Olney (Maryland) | 4,625.39 mi (7,443.84 km) |
| San Giovanni Rotondo to Olympia (Washington) | 5,801.90 mi (9,337.26 km) |
