| Mason City to Benisa | 4,608.99 mi (7,417.45 km) |
| Mason City to Berga | 4,542.12 mi (7,309.84 km) |
| Mason City to Berja | 4,556.74 mi (7,333.36 km) |
| Mason City to Bermeo | 4,300.72 mi (6,921.33 km) |
| Mason City to Berriozar | 4,367.43 mi (7,028.69 km) |
| Mason City to Betanzos | 4,075.57 mi (6,559.00 km) |
| Mason City to Betera | 4,550.30 mi (7,323.00 km) |
| Mason City to Bilbao | 4,298.92 mi (6,918.45 km) |
| Mason City to Binefar | 4,488.93 mi (7,224.23 km) |
| Mason City to Binisalem | 4,685.20 mi (7,540.11 km) |
| Mason City to Blanes | 4,598.67 mi (7,400.85 km) |
| Mason City to Boadilla del Monte | 4,371.23 mi (7,034.81 km) |
| Mason City to Boiro | 4,069.06 mi (6,548.52 km) |
| Mason City to Bolanos de Calatrava | 4,439.32 mi (7,144.40 km) |
| Mason City to Bollullos de la Mitacion | 4,395.21 mi (7,073.41 km) |
