What is the road mile distance from Regina Saskatchewan to Houston Texas?

About 1,720 road miles

Though taking this faster, easier and more efficient route it is 1,890 miles/3,045 km.

From Regina to the Border X-ing at North Portal, it is 245 km (150 miles) taking this route:

1. Take HIGHWAY 6 - SOUTH, from Regina, to HIGHWAY 39 - EAST to WAYBURN.
2. Continue on HIGHWAY 39 - EAST to the U.S. BORDER X-ING @ North Portal (SK)/Portal (ND).

From there, it is 1,740 miles (2,800 km) from Portal, ND to Houston, TX taking this route:

1. Take U.S. 52 SOUTH, from Portal, ND, to I-94 EAST to FARGO.
2. Take I-94 EAST to I-29 SOUTH to SIOUX FALLS at EXIT 349A.
3. Take I-29 SOUTH to I-35 SOUTH to WICHITA, via I-435 SOUTH to bypass Kansas City (EXIT 17 off I-35 in Missouri to get onto I-435 SOUTH ; EXIT 83 off I-435 in KANSAS to get onto I-35 SOUTH).
4. Take I-35 SOUTH to I-35E SOUTH to DALLAS; then continue on I-35E to I-45 SOUTH to HOUSTON at EXIT 429A in downtown Dallas.
5. Take I-45 SOUTH to Houston.