| Halen to Odessa (Texas) | 5,219.60 mi (8,400.13 km) |
| Halen to Ogden (Utah) | 5,028.45 mi (8,092.51 km) |
| Halen to Oildale (California) | 5,574.10 mi (8,970.65 km) |
| Halen to Ojus (Florida) | 4,647.18 mi (7,478.91 km) |
| Halen to Okemos (Michigan) | 4,004.64 mi (6,444.84 km) |
| Halen to Oklahoma City (Oklahoma) | 4,851.67 mi (7,808.01 km) |
| Halen to Okmulgee (Oklahoma) | 4,788.41 mi (7,706.20 km) |
| Halen to Olathe (Kansas) | 4,576.87 mi (7,365.76 km) |
| Halen to Old Jamestown (Missouri) | 4,411.06 mi (7,098.91 km) |
| Halen to Oldsmar (Florida) | 4,646.64 mi (7,478.05 km) |
| Halen to Olean (New York) | 3,802.86 mi (6,120.12 km) |
| Halen to Olive Branch (Mississippi) | 4,587.84 mi (7,383.42 km) |
| Halen to Olivehurst (California) | 5,431.49 mi (8,741.14 km) |
| Halen to Olney (Maryland) | 3,881.18 mi (6,246.15 km) |
| Halen to Olympia (Washington) | 4,995.80 mi (8,039.96 km) |
