| Gallarate to Odessa (Texas) | 5,567.11 mi (8,959.39 km) |
| Gallarate to Ogden (Utah) | 5,410.82 mi (8,707.87 km) |
| Gallarate to Oildale (California) | 5,959.13 mi (9,590.29 km) |
| Gallarate to Ojus (Florida) | 4,909.87 mi (7,901.67 km) |
| Gallarate to Okemos (Michigan) | 4,342.14 mi (6,988.00 km) |
| Gallarate to Oklahoma City (Oklahoma) | 5,196.70 mi (8,363.28 km) |
| Gallarate to Okmulgee (Oklahoma) | 5,130.36 mi (8,256.52 km) |
| Gallarate to Olathe (Kansas) | 4,924.84 mi (7,925.77 km) |
| Gallarate to Old Jamestown (Missouri) | 4,749.04 mi (7,642.84 km) |
| Gallarate to Oldsmar (Florida) | 4,926.30 mi (7,928.11 km) |
| Gallarate to Olean (New York) | 4,125.04 mi (6,638.62 km) |
| Gallarate to Olive Branch (Mississippi) | 4,912.87 mi (7,906.50 km) |
| Gallarate to Olivehurst (California) | 5,823.17 mi (9,371.48 km) |
| Gallarate to Olney (Maryland) | 4,188.20 mi (6,740.26 km) |
| Gallarate to Olympia (Washington) | 5,394.05 mi (8,680.88 km) |
