Yes, I think I do. #1: How old are your planes? If your planes are any older than 12 years, they might be at 5% happiness. Also, even if the planes are okay, (#2) Check your services. If the service satisfaction is low, then the entire route satisfaction might be low. I recommend 50% service satisfaction or more. #3, how full are your competitors’ planes? If they are full and their satisfaction higher, either raise your satisfaction or close the route. I’ll help anytime!

Thanks for the reply, I could solve it. My employees required a higher salary and I didn’t notice.

Ok, anytime!