| Birsfelden to Odessa (Texas) | 5,445.46 mi (8,763.63 km) |
| Birsfelden to Ogden (Utah) | 5,276.60 mi (8,491.86 km) |
| Birsfelden to Oildale (California) | 5,823.99 mi (9,372.81 km) |
| Birsfelden to Ojus (Florida) | 4,817.91 mi (7,753.68 km) |
| Birsfelden to Okemos (Michigan) | 4,223.58 mi (6,797.19 km) |
| Birsfelden to Oklahoma City (Oklahoma) | 5,075.82 mi (8,168.74 km) |
| Birsfelden to Okmulgee (Oklahoma) | 5,010.55 mi (8,063.70 km) |
| Birsfelden to Olathe (Kansas) | 4,802.83 mi (7,729.40 km) |
| Birsfelden to Old Jamestown (Missouri) | 4,630.49 mi (7,452.05 km) |
| Birsfelden to Oldsmar (Florida) | 4,828.38 mi (7,770.53 km) |
| Birsfelden to Olean (New York) | 4,011.72 mi (6,456.23 km) |
| Birsfelden to Olive Branch (Mississippi) | 4,798.96 mi (7,723.18 km) |
| Birsfelden to Olivehurst (California) | 5,685.56 mi (9,150.03 km) |
| Birsfelden to Olney (Maryland) | 4,080.20 mi (6,566.44 km) |
| Birsfelden to Olympia (Washington) | 5,253.95 mi (8,455.41 km) |
