But Gerry Soejatman, a consultant with the Jakarta-based Whitesky Aviation chartered flight provider, said every airline had its own level of risk assessment.
Flying above 30,000 feet is generally considered secure given the level of training and sophisticated weaponry required to shoot down a plane at that height, Soejatman said.
"Ten years ago you'd be an idiot to fly over Iraq below 15,000 feet, but over 30,000 feet was very safe, so it's about the level of risk.
"I think this will send a message to airlines to have a closer look at conflict zones when they choose to fly over them and gain a better understanding of what equipment is on the ground," he said.
Malaysian Airlines was not the only carrier that had persisted with the corridor over Ukraine.
Air India and Thai Airways said they had only decided to re-route their flights after the Malaysian crash.
Air China and China Eastern Airways had a total of 28 flights a week passing over eastern Ukraine, but China's Civil Aviation Administration said Friday it had ordered all carriers to circumvent the region.
Vietnam Airlines said it had suspended four long-haul flights to Europe in the immediate aftermath of the Malaysia Airlines incident.
The flights resumed Friday, but on re-drawn routes that "completely avoid" eastern Ukraine, the airline said.