I assume that this is an American website, so why not display the American cities, rather than Mexico cities. They are much more significant to Americans and pilots.
El Paso instead of Ciudad Juarez
Del Rio instead of Ciudad Acuna
Eagle Pass instead of Piedras Negras
Brownsville instead of Matamoros
If you insist on putting in Mexico towns, then put in both.
This not an American website ! Sorry, it’s an European app.
Windy use Open Street Map as base map and do not control or modify the location names.
You can do it yourself :