I can remember the story itself, but I cannot recall the title. It should be really easy to identify, as, while not unique, it's at least distinct.
It's a short story that is set vaguely in "present day" (for whenever it was published). It is about a guy who finds an airline that does really cheap flights. Long (or short) story short(-er) it turns out that this is achieved by killing one person on that flight. The sacrifice is chosen on a lottery principle, so all passengers stand an equal chance of dying. In exchange, the flight is extremely better for everybody else - the plane is reliable, there is no threat of an emergency, it's on time and it's very fuel efficient. I cannot remember the details of why that was, but it was possibly not explicitly stated.
The main character is made aware of this and that somebody would have to die by a stewardess/flight attendant. In fact, all people on the flight know about the "death lottery" and are there despite that. The main character objects about thus being murder in the beginning, but eventually starts to "see reason".
The story is old-ish, I believe from the 70s or maybe 80s. I thought the title was "Morder Airlines" or maybe even more explicitly "Murder Airlines" but googling does not seem to reveal a sci-fi story called that. Or perhaps, it is buried deep in news articles about murders and planes (lo-o-ots of those show up).
I hope somebody could give me the name and the author.