| Flagstaff to Smyrna (Delaware) | 1,987.77 mi (3,199.00 km) |
| Flagstaff to Smyrna (Georgia) | 1,540.74 mi (2,479.59 km) |
| Flagstaff to Smyrna (Tennessee) | 1,407.26 mi (2,264.76 km) |
| Flagstaff to Snellville (Georgia) | 1,569.72 mi (2,526.21 km) |
| Flagstaff to Snoqualmie (Washington) | 1,002.13 mi (1,612.77 km) |
| Flagstaff to Snyder (Texas) | 636.69 mi (1,024.66 km) |
| Flagstaff to Socastee (South Carolina) | 1,852.89 mi (2,981.94 km) |
| Flagstaff to Socorro (Texas) | 394.43 mi (634.77 km) |
| Flagstaff to Soddy-Daisy (Tennessee) | 1,488.23 mi (2,395.07 km) |
| Flagstaff to Solana Beach (California) | 356.33 mi (573.46 km) |
| Flagstaff to Soledad (California) | 551.39 mi (887.38 km) |
| Flagstaff to Solon (Ohio) | 1,682.46 mi (2,707.65 km) |
| Flagstaff to Somers Point (New Jersey) | 2,041.12 mi (3,284.87 km) |
| Flagstaff to Somerset (Kentucky) | 1,507.72 mi (2,426.44 km) |
| Flagstaff to Somerset (New Jersey) | 2,042.78 mi (3,287.53 km) |
