| Newton Mearns to Popovo | 1,596.81 mi (2,569.82 km) |
| Newton Mearns to Provadia | 1,648.78 mi (2,653.45 km) |
| Newton Mearns to Radnevo | 1,636.45 mi (2,633.62 km) |
| Newton Mearns to Radomir | 1,517.89 mi (2,442.81 km) |
| Newton Mearns to Rakitovo | 1,586.17 mi (2,552.69 km) |
| Newton Mearns to Rakovski | 1,602.28 mi (2,578.61 km) |
| Newton Mearns to Razgrad | 1,598.57 mi (2,572.65 km) |
| Newton Mearns to Razlog | 1,569.57 mi (2,525.98 km) |
| Newton Mearns to Ruse | 1,564.32 mi (2,517.53 km) |
| Newton Mearns to Samokov | 1,549.82 mi (2,494.20 km) |
| Newton Mearns to Sandanski | 1,579.21 mi (2,541.50 km) |
| Newton Mearns to Sevlievo | 1,571.57 mi (2,529.20 km) |
| Newton Mearns to Shumen | 1,625.65 mi (2,616.23 km) |
| Newton Mearns to Silistra | 1,599.04 mi (2,573.41 km) |
| Newton Mearns to Sliven | 1,632.31 mi (2,626.95 km) |
