Funeral of Non-Jew
Can one go to a funeral of a non-Jew?
The Aish Rabbi Replies
Yes, of course. So long as the funeral services are not held in a church, it is fine to attend. (If they are, you may still attend the burial itself and any other part of the ceremony.) (Sources: Shulchan Aruch Y.D. 150:1, Darkei Teshuvah there, Chaim B'Yad 26, Yabia Omer II Y.D. 11.)