| Arendal to Octeville | 740.40 mi (1,191.56 km) |
| Arendal to Oignies | 598.33 mi (962.92 km) |
| Arendal to Oissel | 702.22 mi (1,130.12 km) |
| Arendal to Olivet | 784.50 mi (1,262.53 km) |
| Arendal to Ollioules | 1,066.00 mi (1,715.57 km) |
| Arendal to Olonne-sur-Mer | 933.10 mi (1,501.68 km) |
| Arendal to Oloron-Sainte-Marie | 1,128.84 mi (1,816.69 km) |
| Arendal to Onet Village | 1,008.52 mi (1,623.06 km) |
| Arendal to Onnaing | 594.79 mi (957.23 km) |
| Arendal to Orange | 1,003.81 mi (1,615.47 km) |
| Arendal to Orchies | 594.19 mi (956.26 km) |
| Arendal to Orleans | 781.85 mi (1,258.27 km) |
| Arendal to Orly | 719.66 mi (1,158.18 km) |
| Arendal to Ormesson-sur-Marne | 714.80 mi (1,150.37 km) |
| Arendal to Orsay | 725.69 mi (1,167.89 km) |
