Here is the full list of all 24 Superflight achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Crash 300 times.
Crash 150 times.
Explore 100 maps.
Explore 50 maps.
Explore 25 maps.
Enter the zen mode.
Gain all three praises in a single run.
Crash 50 times.
Gain the "Godlike!" praise.
Enter a seed and create a map.
Loose 10.000 points in a crash.
Complete a 10.000 points combo.
Gain 40.000 points in a single run.
Complete a 5.000 points combo.
Gain 20.000 points in a single run.
Gain the "Awesome!" praise.
Gain 10.000 points in a single run.
Gain 5.000 points in a single run.
Travel through a portal.
Gain the "So Close!" praise.
Complete your first run in Superflight.
Inverting the steering axis? Seriously, that's just wrong.
Reach the end of a map.
Complete a 1.000 points combo.