As Rodney Dangerfield says in “Back to School”, “you left out so much.”
As others have noted, on the revenue side, you left out cargo revenue, which can be significant. You may also have left out no-shows on BE tickets who weren’t in seats but won’t get refunds.
On the expense side, you left out items too:
- Lodging for crew in CDG
- Per Diem for crew during the trip
- Overhead and admin costs
And just like for a car your only expense to go somewhere isn’t just gas but also wear & tear that takes into account both scheduled and unscheduled maintenance, insurance, and also the acquisition cost of the plane and how that gets spread over the life cycle of the aircraft (and of course other expenses).
Airlines track many of costs by “block hours” costs which provide an average hourly rate for an aircraft based on numerous factors/pieces of data for input.
And to bring this post full circle, given that it left EWR, I’m sure there were other “extra expenses” too, as Rodney Dangerfield talked about in “Back to School”
