By the way, MH17 was not in a no-fly zone.
"The doomed Boeing 777 was following an air traffic routing between Europe and Asia that is issued by dozens of jets a day and was in a section of airspace deemed safe by international aviation authorities...
“This was a very commonly used route and passenger jets fly at high altitudes over many of the world’s hotspots all the time,” said Norman Shanks, professor of aviation security at Britain’s Coventry University. “They chose the most direct and economic flight route possible, which keeps their fuel costs down and is something we expect as customers. They were no different from any other international airline.”...
"British Airways, Air France, Lufthansa and KLM are among the airlines to have used exactly the same routing over eastern Ukraine in recent days, according to website FlightRadar24.
Fifteen out of 16 airlines in the Association of Asia Pacific Airlines fly this route over Ukraine,” Malaysia’s transport minister Liow Tiong Lai said Friday. “European airlines also use the same route, and traverse the same airspace.”"
http://www.nbcnews.com/storyline/ukraine-plane-crash/why-was-malaysia-airlines-mh17-flying-over-ukraine-time-money-n159161