That would be my concern. You're (presumably) not leaving the airlines which puts the first pass ROI at zero.

If you are looking to change careers ... I would try to find someone 5 years down the road who has had success with an online MBA. My strong impression is that online grad school makes grad school successful and not grad students.

Assuming you are going to use it towards some business of your own ... well, OK. In that case the degree itself is meaningless and ... to quote Good Will Hunting “You wasted $150,000 on an education you coulda got for $1.50 in late fees at the public library."

If we know where you want to be in 5 years that's different because you took an online MBA, we might be able to offer better advice.