| Hartford to Melzo | 3,927.43 mi (6,320.59 km) |
| Hartford to Mendicino | 4,446.19 mi (7,155.46 km) |
| Hartford to Menfi | 4,364.90 mi (7,024.64 km) |
| Hartford to Mentana | 4,186.93 mi (6,738.22 km) |
| Hartford to Merano | 3,962.92 mi (6,377.70 km) |
| Hartford to Merate | 3,921.65 mi (6,311.29 km) |
| Hartford to Mercato San Severino | 4,325.17 mi (6,960.68 km) |
| Hartford to Mercogliano | 4,318.87 mi (6,950.55 km) |
| Hartford to Mesagne | 4,465.77 mi (7,186.96 km) |
| Hartford to Messina | 4,459.26 mi (7,176.48 km) |
| Hartford to Mestre | 4,047.53 mi (6,513.87 km) |
| Hartford to Mestrino | 4,029.00 mi (6,484.04 km) |
| Hartford to Milan | 3,918.81 mi (6,306.72 km) |
| Hartford to Milazzo | 4,444.12 mi (7,152.11 km) |
| Hartford to Minerbio | 4,044.69 mi (6,509.30 km) |
