Dua Al Safer is a prayer made for one who is travelling and is as follows :
اللَّهُمَّ إنَّا نَسْأَلُكَ في سَفَرِنَا هذا البِرَّ وَالتَّقْوَى، وَمِنَ العَمَلِ ما تَرْضَى، اللَّهُمَّ هَوِّنْ عَلَيْنَا سَفَرَنَا هذا، وَاطْوِ عَنَّا بُعْدَهُ، اللَّهُمَّ أَنْتَ الصَّاحِبُ في السَّفَرِ، وَالْخَلِيفَةُ في الأهْلِ، اللَّهُمَّ إنِّي أَعُوذُ بكَ مِن وَعْثَاءِ السَّفَرِ، وَكَآبَةِ المَنْظَرِ، وَسُوءِ المُنْقَلَبِ في المَالِ وَالأهْلِ
O Allah, we ask You in our travel for righteousness, taqwa, and good deeds that You are pleased with. O Allah make our travel an ease, and shorten the distance for us. O Allah, You are our Companion in travel and the guardian of our family (in our absence). O Allah I seek refuge in You from the hardships of travel, a sight of grief, and from an unfortunate occurance in wealth and family.
Bismillah ir Rahman ou Raheem -
"In (or with) the name of Allah, the Beneficent, the Merciful."