| Marcq-en-Baroeul to Olivenza | 965.84 mi (1,554.37 km) |
| Marcq-en-Baroeul to Olot | 587.24 mi (945.06 km) |
| Marcq-en-Baroeul to Onate | 588.13 mi (946.51 km) |
| Marcq-en-Baroeul to Onda | 757.49 mi (1,219.06 km) |
| Marcq-en-Baroeul to Onteniente | 838.34 mi (1,349.17 km) |
| Marcq-en-Baroeul to Orihuela | 891.86 mi (1,435.31 km) |
| Marcq-en-Baroeul to Osuna | 1,012.55 mi (1,629.54 km) |
| Marcq-en-Baroeul to Ourense | 775.13 mi (1,247.44 km) |
| Marcq-en-Baroeul to Oviedo | 656.78 mi (1,056.98 km) |
| Marcq-en-Baroeul to Paiporta | 795.32 mi (1,279.95 km) |
| Marcq-en-Baroeul to Pajara | 1,784.29 mi (2,871.53 km) |
| Marcq-en-Baroeul to Palafolls | 622.19 mi (1,001.32 km) |
| Marcq-en-Baroeul to Palafrugell | 604.83 mi (973.38 km) |
| Marcq-en-Baroeul to Palamos | 609.77 mi (981.33 km) |
| Marcq-en-Baroeul to Palencia | 699.17 mi (1,125.20 km) |
