| Didcot to Marasesti | 1,346.39 mi (2,166.81 km) |
| Didcot to Marghita | 1,093.03 mi (1,759.06 km) |
| Didcot to Marginea | 1,230.08 mi (1,979.62 km) |
| Didcot to Matca | 1,360.30 mi (2,189.19 km) |
| Didcot to Medgidia | 1,445.36 mi (2,326.08 km) |
| Didcot to Media | 1,215.12 mi (1,955.54 km) |
| Didcot to Miercurea-Ciuc | 1,270.40 mi (2,044.52 km) |
| Didcot to Mioveni | 1,279.99 mi (2,059.94 km) |
| Didcot to Mizil | 1,341.92 mi (2,159.61 km) |
| Didcot to Moinesti | 1,297.26 mi (2,087.74 km) |
| Didcot to Moisei | 1,178.83 mi (1,897.14 km) |
| Didcot to Moldova Noua | 1,151.62 mi (1,853.35 km) |
| Didcot to Moreni | 1,308.89 mi (2,106.46 km) |
| Didcot to Motru | 1,202.78 mi (1,935.69 km) |
| Didcot to Murfatlar | 1,454.32 mi (2,340.51 km) |
