| Glastonbury to Opole | 897.23 mi (1,443.95 km) |
| Glastonbury to Orzesze | 939.50 mi (1,511.98 km) |
| Glastonbury to Osowa | 909.91 mi (1,464.35 km) |
| Glastonbury to Ostroda | 967.41 mi (1,556.89 km) |
| Glastonbury to Ostroleka | 1,033.79 mi (1,663.72 km) |
| Glastonbury to Ostrow Mazowiecka | 1,048.62 mi (1,687.59 km) |
| Glastonbury to Ostrow Wielkopolski | 882.76 mi (1,420.67 km) |
| Glastonbury to Ostrowiec Swietokrzyski | 1,043.00 mi (1,678.54 km) |
| Glastonbury to Ostrzeszow | 889.54 mi (1,431.58 km) |
| Glastonbury to Oswiecim | 961.59 mi (1,547.52 km) |
| Glastonbury to Otwock | 1,025.92 mi (1,651.05 km) |
| Glastonbury to Ozarow Mazowiecki | 1,005.57 mi (1,618.31 km) |
| Glastonbury to Ozimek | 909.21 mi (1,463.23 km) |
| Glastonbury to Ozorkow | 943.02 mi (1,517.64 km) |
| Glastonbury to Pabianice | 949.53 mi (1,528.12 km) |
