

Any attempt to cheat is ultimately futile as it's implied that Death maintains an agenda of some kind in order to keep forces of life and death balanced and will meet that quota one way or another. They were meant to survive to die as they do in the film so that Peter could try to kill Molly and her "apparent" death was avoided so that she and Sam could be on Flight 180 and Death's plan could play out exactly as it is supposed to and kill Sam and Molly where they were supposed to die all along. Because of this, suicide is practically impossible unless it was indeed that person's time to die. The evidence for this seems to be Molly Harper, from Final Destination 5, who was never meant to die on the North Bay Bridge and nor were any of her friends and co-workers. Despite it often being called "cheating" or "avoiding" Death, this is incorrect as evidence throughout the series seems to indicate that Death seems to have planned for the survivors to escape as they were supposed to die later and the visions were to help them get to that right place at said right time.

It has been highly suggested that Death essentially programs the events of a person's entire lifespan, ultimately deciding where, when, and how they will die. Should anyone deviate or "cheat" from what Death has set for them, whether deliberately or not, Death will then impart a new design and eventually return for them to seek revenge, usually in the worst, most painful way imaginable, though whether Death is actually malicious or just taking offense at its design being broken is unknown. Although the character of Death is never seen, in truth it is an entity that wants its design to never be violated.
While invisible to people, it nevertheless makes a somewhat noticeable and ominous presence wherever it goes and can manipulate any aspect of an environment to its will. In the Final Destination series, Death (also known as The Grim Reaper) is an active, cunning, volatile, supernatural, personified force, and the series' primary antagonist, though its actual malevolence is debatable.

In death, there are no accidents, no coincidences, no mishaps.and no escapes.
