General,
I'm no CPA but I'm pretty sure the reason you can't just take net profit and subtract out the hedging gains goes something like this.
1 - hedges cost money to buy (expense) that we wouldn't have if we didn't hedge
2 - hedging profits entail taxes to be paid on them, so 189 million is hedging gain is really less because of the tax cost associated with the financial derivative
3 - w/o hedges we would have had a different cost argument to enter in our revenue maximization formula, thus probably charged higher fares (up to a point, which would depress loads, which is why revenue management guys should get big bucks. FWIW I think we undercharged all spring and summer and now for that matter. with loads as high as they've been, we should've cleared more net income)
4 - there is another part to it, something about which side of the balance sheet it goes on, but I don't remember it right now.
short version is that
profit - hedges = profit w/o hedges
is not a valid equation.
It could be safely said that our profit would have been less, but how much less is not self-evident w/o an hp12c accounting calculator and more knowledge / time than I have.