The journey from Sisters, Oregon to San Antonio, Texas is about 2,000 miles. Driving takes roughly 30 hours, typically following I-84 East to I-25 South to I-10 East. San Antonio is famous for the Alamo and its historic River Walk.
Total Distance: 3,200 km driving, 2,700 km air distance.
The drive across the West is long but scenic.
Spring or Fall for mild weather.