| Groningen to Odessa (Texas) | 5,184.55 mi (8,343.73 km) |
| Groningen to Ogden (Utah) | 4,959.32 mi (7,981.25 km) |
| Groningen to Oildale (California) | 5,500.80 mi (8,852.69 km) |
| Groningen to Ojus (Florida) | 4,669.81 mi (7,515.33 km) |
| Groningen to Okemos (Michigan) | 3,980.49 mi (6,405.99 km) |
| Groningen to Oklahoma City (Oklahoma) | 4,819.43 mi (7,756.13 km) |
| Groningen to Okmulgee (Oklahoma) | 4,758.79 mi (7,658.53 km) |
| Groningen to Olathe (Kansas) | 4,542.82 mi (7,310.97 km) |
| Groningen to Old Jamestown (Missouri) | 4,385.47 mi (7,057.73 km) |
| Groningen to Oldsmar (Florida) | 4,659.58 mi (7,498.86 km) |
| Groningen to Olean (New York) | 3,790.81 mi (6,100.72 km) |
| Groningen to Olive Branch (Mississippi) | 4,571.50 mi (7,357.12 km) |
| Groningen to Olivehurst (California) | 5,348.70 mi (8,607.89 km) |
| Groningen to Olney (Maryland) | 3,879.34 mi (6,243.19 km) |
| Groningen to Olympia (Washington) | 4,900.49 mi (7,886.58 km) |
