| Security-Widefield to Reading (Pennsylvania) | 1,530.97 mi (2,463.86 km) |
| Security-Widefield to Red Bank (New Jersey) | 1,628.35 mi (2,620.58 km) |
| Security-Widefield to Red Bank (Tennessee) | 1,099.23 mi (1,769.05 km) |
| Security-Widefield to Red Bluff (California) | 938.59 mi (1,510.51 km) |
| Security-Widefield to Red Hill (South Carolina) | 1,467.27 mi (2,361.34 km) |
| Security-Widefield to Red Oak (Texas) | 618.65 mi (995.62 km) |
| Security-Widefield to Red Wing (Minnesota) | 742.55 mi (1,195.01 km) |
| Security-Widefield to Redan (Georgia) | 1,193.30 mi (1,920.43 km) |
| Security-Widefield to Redding (California) | 945.64 mi (1,521.86 km) |
| Security-Widefield to Redland (Maryland) | 1,476.01 mi (2,375.40 km) |
| Security-Widefield to Redlands (California) | 764.14 mi (1,229.76 km) |
| Security-Widefield to Redmond (Oregon) | 931.12 mi (1,498.48 km) |
| Security-Widefield to Redmond (Washington) | 1,067.70 mi (1,718.30 km) |
| Security-Widefield to Redondo Beach (California) | 831.30 mi (1,337.84 km) |
| Security-Widefield to Redwood City (California) | 954.20 mi (1,535.63 km) |
