This going off the following route, which is by no means the absolute most optimal:
DCGuatemalaSanjoseBrasiliaLimaPortauprincePretoriaMaputoKinsashaAddisAbabaJerusalemAlgeirsYaundeConakyLomeDakarMadridParisLondonBerlinBernRomeBelgradeAthensKyivMoscowOsloRiyadhTehranAstanaDelhiBeijingSeoulJakartaBangkokBandar
This going off the following route, which is by no means the absolute most optimal:
DCGuatemalaSanjoseBrasiliaLimaPortauprincePretoriaMaputoKinsashaAddisAbabaJerusalemAlgeirsYaundeConakyLomeDakarMadridParisLondonBerlinBernRomeBelgradeAthensKyivMoscowOsloRiyadhTehranAstanaDelhiBeijingSeoulJakartaBangkokBandar