| San Marcos to Frederick (Colorado) | 829.50 mi (1,334.94 km) |
| San Marcos to Frederick (Maryland) | 2,238.20 mi (3,602.03 km) |
| San Marcos to Fredericksburg (Texas) | 1,092.34 mi (1,757.96 km) |
| San Marcos to Fredericksburg (Virginia) | 2,237.41 mi (3,600.76 km) |
| San Marcos to Frederickson (Washington) | 1,001.90 mi (1,612.40 km) |
| San Marcos to Freeport (Illinois) | 1,623.56 mi (2,612.87 km) |
| San Marcos to Freeport (New York) | 2,438.21 mi (3,923.92 km) |
| San Marcos to Freeport (Texas) | 1,320.81 mi (2,125.63 km) |
| San Marcos to Fremont (California) | 406.78 mi (654.66 km) |
| San Marcos to Fremont (Nebraska) | 1,269.26 mi (2,042.68 km) |
| San Marcos to Fremont (Ohio) | 1,943.42 mi (3,127.64 km) |
| San Marcos to French Valley (California) | 32.36 mi (52.07 km) |
| San Marcos to Fresno (California) | 292.43 mi (470.62 km) |
| San Marcos to Fresno (Texas) | 1,302.33 mi (2,095.90 km) |
| San Marcos to Fridley (Minnesota) | 1,515.94 mi (2,439.67 km) |
