| Didcot to Manerbio | 674.81 mi (1,086.00 km) |
| Didcot to Manfredonia | 1,062.00 mi (1,709.12 km) |
| Didcot to Maniago | 735.35 mi (1,183.44 km) |
| Didcot to Mantova | 708.01 mi (1,139.43 km) |
| Didcot to Maranello | 740.80 mi (1,192.20 km) |
| Didcot to Marano di Napoli | 1,040.07 mi (1,673.83 km) |
| Didcot to Marano Vicentino | 706.38 mi (1,136.81 km) |
| Didcot to Marcianise | 1,036.88 mi (1,668.69 km) |
| Didcot to Marcon | 745.10 mi (1,199.13 km) |
| Didcot to Mareno di Piave | 734.80 mi (1,182.55 km) |
| Didcot to Margherita di Savoia | 1,083.66 mi (1,743.99 km) |
| Didcot to Mariano Comense | 625.77 mi (1,007.07 km) |
| Didcot to Marigliano | 1,047.20 mi (1,685.31 km) |
| Didcot to Marino | 943.87 mi (1,519.01 km) |
| Didcot to Marostica | 712.63 mi (1,146.87 km) |
