| Fairfield to Oak Harbor (Washington) | 694.22 mi (1,117.23 km) |
| Fairfield to Oak Hills (Oregon) | 504.86 mi (812.49 km) |
| Fairfield to Oak Lawn (Illinois) | 1,818.28 mi (2,926.25 km) |
| Fairfield to Oak Park (California) | 335.14 mi (539.36 km) |
| Fairfield to Oak Park (Illinois) | 1,815.59 mi (2,921.91 km) |
| Fairfield to Oak Park (Michigan) | 2,047.82 mi (3,295.65 km) |
| Fairfield to Oak Ridge (Florida) | 2,418.23 mi (3,891.76 km) |
| Fairfield to Oak Ridge (New Jersey) | 2,504.97 mi (4,031.36 km) |
| Fairfield to Oak Ridge (Tennessee) | 2,071.10 mi (3,333.11 km) |
| Fairfield to Oakdale (California) | 73.14 mi (117.72 km) |
| Fairfield to Oakdale (Minnesota) | 1,562.10 mi (2,513.95 km) |
| Fairfield to Oakland (California) | 33.83 mi (54.44 km) |
| Fairfield to Oakland (New Jersey) | 2,518.07 mi (4,052.44 km) |
| Fairfield to Oakland Park (Florida) | 2,561.72 mi (4,122.69 km) |
| Fairfield to Oakleaf Plantation (Florida) | 2,344.48 mi (3,773.07 km) |
