Originally Posted by
humanoid94
You might wonder why I chose a conneting flight instead of calculating on the basis of the GFK-MSP flight. I chose that because in an airline's eyes your GFK-MSP seat is displacing a ticket that may have been sold GFK-JAX or LAX or anywhere else, thus there is always an opportunity cost.

In theory, you're right, and that's an important piece of the puzzle. I just don't know about the amount of seats being displaced out of GFK... it's not like the flights to MSP are packed. In order to have an opportunity cost, you first need to have an
opportunity.