| Pittsburgh to Red Bank (New Jersey) | 310.96 mi (500.43 km) |
| Pittsburgh to Red Bank (Tennessee) | 468.76 mi (754.39 km) |
| Pittsburgh to Red Bluff (California) | 2,205.27 mi (3,549.04 km) |
| Pittsburgh to Red Hill (South Carolina) | 463.35 mi (745.69 km) |
| Pittsburgh to Red Oak (Texas) | 1,079.63 mi (1,737.50 km) |
| Pittsburgh to Red Wing (Minnesota) | 702.94 mi (1,131.27 km) |
| Pittsburgh to Redan (Georgia) | 517.13 mi (832.25 km) |
| Pittsburgh to Redding (California) | 2,204.86 mi (3,548.39 km) |
| Pittsburgh to Redland (Maryland) | 175.24 mi (282.03 km) |
| Pittsburgh to Redlands (California) | 2,076.81 mi (3,342.31 km) |
| Pittsburgh to Redmond (Oregon) | 2,098.22 mi (3,376.76 km) |
| Pittsburgh to Redmond (Washington) | 2,123.39 mi (3,417.27 km) |
| Pittsburgh to Redondo Beach (California) | 2,145.51 mi (3,452.87 km) |
| Pittsburgh to Redwood City (California) | 2,256.94 mi (3,632.20 km) |
| Pittsburgh to Reedley (California) | 2,132.33 mi (3,431.65 km) |
