| Peekskill to Olympia (Washington) | 2,419.12 mi (3,893.20 km) |
| Peekskill to Olympia Heights (Florida) | 1,136.27 mi (1,828.65 km) |
| Peekskill to Omaha (Nebraska) | 1,146.02 mi (1,844.34 km) |
| Peekskill to On Top of the World Designated Place (Florida) | 964.00 mi (1,551.41 km) |
| Peekskill to Onalaska (Wisconsin) | 895.66 mi (1,441.42 km) |
| Peekskill to Oneida (New York) | 152.31 mi (245.13 km) |
| Peekskill to Oneonta (New York) | 99.81 mi (160.62 km) |
| Peekskill to Ontario (California) | 2,414.93 mi (3,886.45 km) |
| Peekskill to Ontario (Oregon) | 2,170.88 mi (3,493.69 km) |
| Peekskill to Opa-locka (Florida) | 1,123.14 mi (1,807.51 km) |
| Peekskill to Opelika (Alabama) | 867.49 mi (1,396.09 km) |
| Peekskill to Opelousas (Louisiana) | 1,254.97 mi (2,019.68 km) |
| Peekskill to Orange (California) | 2,433.03 mi (3,915.59 km) |
| Peekskill to Orange (Texas) | 1,348.98 mi (2,170.97 km) |
| Peekskill to Orange City (Florida) | 948.74 mi (1,526.84 km) |
