The journey from Conroe to St. Louis covers approximately 800 miles. Driving via I-45 North and I-44 East takes about 12 to 14 hours, passing through Dallas and Oklahoma City. Alternatively, flying from George Bush Intercontinental Airport (IAH) to St. Louis Lambert International Airport (STL) takes about 2 hours. This journey takes you from the humid Gulf Coast to the heart of the Midwest. Air travel is highly recommended to save time, though driving offers a scenic road trip experience.
Total Distance: 1,300 km driving distance; 1,100 km straight-line air distance.
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Direct
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Direct
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|---|---|---|
| Duration | 2 hours | 13 hours |
| Avg Price | $150 - $350 | $150 - $250 in fuel |
| Operator | United Airlines | Personal Vehicle |
| Route | IAH to STL | I-45 N to I-44 E |
| Tip | Book mid-week flights to find the lowest fares for this popular route. | Plan for overnight stops in Oklahoma City to avoid driver fatigue. |
May, June, September, or October for mild weather and fewer crowds.