To reach the midway point from San Marcos to Port Arthur (Texas), you would fly roughly 115 miles from Port Arthur (Texas) to the halfway stop.
The exact coordinates of the midpoint are:
29° 54' 21" N
95° 56' 6" W
The best place to meet based on recommendations from Trippy members is Katy.
The location closest to the exact midpoint would be Brookshire.
Want to plan out your whole trip? Go to the main page to find other halfway points.
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Q&A from Port Arthur (Texas) to San Marcos:
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