Hi Ali,
I have looked through both Websites for LMU and Brunel and cannot see where they offer distance learning in Aviation Management - LMU seem to have both full-time and part-time options, but not distance learning, and Brunel's degree is an engineering degree, again not distance learning.
PS. For the questioner: IATA offer a number of distance learning training modules - they lead to a diploma in Aviation Studies rather than a degree.
Diploma in Aviation Studies (Distance Learning)