Austin
Centerville, tx is roughly the half way point.
Halfway point between Dallas and San francisco
It is 933 miles (1501.52 kilometers) from Los Angeles, California to Dallas, Oregon (Not The Dalles, Oregon on the Columbia River). So the half way point would be Willows, California right at 466.5 miles (750.75 kilometers) on Interstate Highway 5.
A half way point between Dallas and Corpus Christi, Texas is Austin, Texas. It is just over 400 miles between the two cities and will take a person almost seven hours to drive between the two destinations.
St George UT would be the best place for accomadations closest to the half way point... probably an hour short of the half way point...
Coalinga, Ca is half way between Sacramento and Los Angeles
DEATH valley DEATH valley DEATH valley DEATH valley DEATH valley :):):):):P
Stockton, CA is roughly half way (it's 18 miles closer to LA than Medford) but on a 692 mile trip who cares about 18 miles!
WAco
The halfway point between Spokane, Washington and Dallas, Oregon is between Arlington, Oregon and Boardman, Oregon. The total mileage is 413 miles, so halfway is 206.5 miles which puts in between Arlington and Boardman. On I-84 there is an exit ramp to Heppner Hwy #74 which is 206 miles from Dallas, Oregon and 207 miles from Spokane, a perfect halfway point.
If you're taking I-10 to Los Angeles, then heading up the coast, then San Bernardino, Ca is the half-way point between Tucson and Sacramento.