| Merriam to Pombal | 4,393.31 mi (7,070.35 km) |
| Merriam to Ponta Delgada | 3,644.66 mi (5,865.51 km) |
| Merriam to Ponta do Sol | 4,234.23 mi (6,814.33 km) |
| Merriam to Ponte da Barca | 4,338.41 mi (6,982.00 km) |
| Merriam to Ponte de Lima | 4,332.80 mi (6,972.97 km) |
| Merriam to Ponte de Sor | 4,444.66 mi (7,152.99 km) |
| Merriam to Portalegre | 4,469.88 mi (7,193.58 km) |
| Merriam to Portimao | 4,495.42 mi (7,234.68 km) |
| Merriam to Porto | 4,350.81 mi (7,001.96 km) |
| Merriam to Porto de Mos | 4,395.50 mi (7,073.87 km) |
| Merriam to Povoa de Lanhoso | 4,353.07 mi (7,005.59 km) |
| Merriam to Povoa de Santa Iria | 4,409.59 mi (7,096.55 km) |
| Merriam to Povoa de Varzim | 4,337.14 mi (6,979.94 km) |
| Merriam to Praia da Vitoria | 3,547.67 mi (5,709.42 km) |
| Merriam to Praia do Carvoeiro | 4,499.72 mi (7,241.59 km) |
