| Las Vegas (Nevada) to Casper | 659.32 mi (1,061.08 km) |
| Minneapolis (Minnesota) to Casper | 665.35 mi (1,070.77 km) |
| Phoenix (Arizona) to Casper | 712.50 mi (1,146.65 km) |
| Portland (Oregon) to Casper | 828.56 mi (1,333.45 km) |
| Seattle (Washington) to Casper | 843.81 mi (1,357.98 km) |
| Riverside (California) to Casper | 857.68 mi (1,380.30 km) |
| Dallas (Texas) to Casper | 867.05 mi (1,395.38 km) |
| Los Angeles (California) to Casper | 887.69 mi (1,428.61 km) |
| St. Louis (Missouri) to Casper | 888.66 mi (1,430.15 km) |
| San Diego (California) to Casper | 907.16 mi (1,459.93 km) |
| San Francisco (California) to Casper | 917.58 mi (1,476.70 km) |
| Chicago (Illinois) to Casper | 952.25 mi (1,532.50 km) |
| Houston (Texas) to Casper | 1,086.09 mi (1,747.90 km) |
| Detroit (Michigan) to Casper | 1,177.32 mi (1,894.71 km) |
| Atlanta (Georgia) to Casper | 1,337.25 mi (2,152.10 km) |
| Washington (District of Columbia) to Casper | 1,546.91 mi (2,489.51 km) |
| Baltimore (Maryland) to Casper | 1,558.21 mi (2,507.69 km) |
| Philadelphia (Pennsylvania) to Casper | 1,618.20 mi (2,604.24 km) |
| Brooklyn (New York) to Casper | 1,665.31 mi (2,680.06 km) |
| New York (New York) to Casper | 1,665.72 mi (2,680.72 km) |
| Queens (New York) to Casper | 1,671.09 mi (2,689.35 km) |
| Tampa (Florida) to Casper | 1,680.87 mi (2,705.10 km) |
| Boston (Massachusetts) to Casper | 1,779.80 mi (2,864.31 km) |
| Miami (Florida) to Casper | 1,886.15 mi (3,035.46 km) |
| Denver (Colorado) to Casper | 225.63 mi (363.11 km) |
