| Flagstaff to Superior (Colorado) | 482.21 mi (776.05 km) |
| Flagstaff to Superior (Wisconsin) | 1,286.90 mi (2,071.06 km) |
| Flagstaff to Surprise (Arizona) | 114.33 mi (184.00 km) |
| Flagstaff to Susanville (California) | 609.23 mi (980.46 km) |
| Flagstaff to Sussex (Wisconsin) | 1,362.47 mi (2,192.68 km) |
| Flagstaff to Suwanee (Georgia) | 1,563.51 mi (2,516.23 km) |
| Flagstaff to Swansea (Illinois) | 1,215.19 mi (1,955.66 km) |
| Flagstaff to Sweetwater (Florida) | 1,960.86 mi (3,155.70 km) |
| Flagstaff to Sweetwater (Texas) | 669.83 mi (1,077.99 km) |
| Flagstaff to Sycamore (Illinois) | 1,320.00 mi (2,124.34 km) |
| Flagstaff to Sylacauga (Alabama) | 1,452.14 mi (2,337.00 km) |
| Flagstaff to Sylvania (Ohio) | 1,568.20 mi (2,523.77 km) |
| Flagstaff to Syosset (New York) | 2,094.46 mi (3,370.71 km) |
| Flagstaff to Syracuse (New York) | 1,961.53 mi (3,156.77 km) |
| Flagstaff to Syracuse (Utah) | 408.29 mi (657.08 km) |
