(Fasting while traveling is the traveler's choice)

Ibn ‘Abbas said God's messenger left Medina to go to Mecca and fasted till he reached ‘Usfan. He then called for water, and raising it aloft so that the people might see it, he broke his fast and did not resume it till he reached Mecca, and that was in Ramadan. Ibn ‘Abbas used to say, “God’s messenger has fasted and has broken his fast, so he who wishes may fast and he who wishes may break his fast.” (Bukhari and Muslim.)