| Helsinki to Olivenza | 2,030.03 mi (3,267.02 km) |
| Helsinki to Olot | 1,561.75 mi (2,513.39 km) |
| Helsinki to Onate | 1,644.57 mi (2,646.67 km) |
| Helsinki to Onda | 1,765.84 mi (2,841.84 km) |
| Helsinki to Onteniente | 1,843.65 mi (2,967.07 km) |
| Helsinki to Orihuela | 1,897.17 mi (3,053.20 km) |
| Helsinki to Osuna | 2,059.16 mi (3,313.90 km) |
| Helsinki to Ourense | 1,845.24 mi (2,969.63 km) |
| Helsinki to Oviedo | 1,727.27 mi (2,779.77 km) |
| Helsinki to Paiporta | 1,802.10 mi (2,900.19 km) |
| Helsinki to Pajara | 2,849.35 mi (4,585.58 km) |
| Helsinki to Palafolls | 1,586.12 mi (2,552.62 km) |
| Helsinki to Palafrugell | 1,560.87 mi (2,511.98 km) |
| Helsinki to Palamos | 1,566.05 mi (2,520.32 km) |
| Helsinki to Palencia | 1,763.55 mi (2,838.15 km) |
