Chas veshalom! Definitely not the day after Tisha B'av.... I just feel bad that they're not smart enough not to forward it...
I point out two issues. #1 nothing is free, don't be naïve to think an airline is giving out free tickets. #2 Vigilantly pay attention to links sent to you, there's always one character that is similar but off (in the case of the British Airways link it was a dot under the t). Those are two important things people should be aware of to avoid and prevent the spread of phising.
But if a person keeps sending these after getting this education, gloves will come off.