| Portland to Marly-le-Roi | 5,115.71 mi (8,232.94 km) |
| Portland to Marmande | 5,301.71 mi (8,532.28 km) |
| Portland to Maromme | 5,053.14 mi (8,132.24 km) |
| Portland to Marquette-les-Lille | 5,041.30 mi (8,113.18 km) |
| Portland to Marseille | 5,520.27 mi (8,884.02 km) |
| Portland to Martigues | 5,504.95 mi (8,859.35 km) |
| Portland to Massy | 5,128.06 mi (8,252.82 km) |
| Portland to Maubeuge | 5,087.06 mi (8,186.83 km) |
| Portland to Mauguio | 5,463.35 mi (8,792.41 km) |
| Portland to Mauleon | 5,142.23 mi (8,275.61 km) |
| Portland to Maurepas | 5,117.42 mi (8,235.69 km) |
| Portland to Maxeville | 5,232.07 mi (8,420.21 km) |
| Portland to Mayenne | 5,071.20 mi (8,161.31 km) |
| Portland to Mazamet | 5,423.00 mi (8,727.48 km) |
| Portland to Meaux | 5,131.99 mi (8,259.15 km) |
