[null and void]

They could try not flying over war zones. ~ E. Pluribus Unum

#1 should be “don’t fly over a war zone” That would take care of much of the risk. ~ Pining_4_TX

They could greatly reduce the chance by not flying through the middle of a war zone. ~ bgill

European airlines are doing that now and American Airlines have avoided flying over war zones for quite a while according to news reports I have heard ~ Kaslin

“They could try not flying over war zones.” Yea, I was thinking the same. ~ BobL

How about—Do not fly over a war zone! ~ Forward the Light Brigade

Avoidance of conflict zones will become essential, ~ centurion316

Yeah, don’t fly in war zones. ~ Timber Rattler

When terrorists have access to SAMs what part of the sky is not an active combat zone?

[centurion316]

Right now terrorists only have access to MANPADS which are not a threat to overflights. The Russians Army are thugs, but are way beyond terrorists. However, when that changes, my comment about the end of commercial air travel will apply in many parts of the world.

[Timber Rattler]

When terrorists have access to SAMs what part of the sky is not an active combat zone?

Judge for yourself...

Astounding map of the airspace over Ukraine after #MH17 was downed: