| Houston to Giovinazzo | 5,894.07 mi (9,485.59 km) |
| Houston to Giugliano in Campania | 5,799.24 mi (9,332.98 km) |
| Houston to Giulianova | 5,717.63 mi (9,201.64 km) |
| Houston to Giussano | 5,410.42 mi (8,707.23 km) |
| Houston to Goito | 5,486.57 mi (8,829.78 km) |
| Houston to Gonzaga | 5,503.77 mi (8,857.45 km) |
| Houston to Gorgonzola | 5,423.95 mi (8,729.00 km) |
| Houston to Gorizia | 5,580.78 mi (8,981.39 km) |
| Houston to Gragnano | 5,822.29 mi (9,370.07 km) |
| Houston to Grammichele | 5,965.78 mi (9,600.99 km) |
| Houston to Granarolo del l'Emilia | 5,544.80 mi (8,923.50 km) |
| Houston to Gravina in Puglia | 5,898.47 mi (9,492.67 km) |
| Houston to Grezzana | 5,491.19 mi (8,837.22 km) |
| Houston to Gricignano d'Aversa | 5,796.04 mi (9,327.82 km) |
| Houston to Grosseto | 5,596.40 mi (9,006.53 km) |
