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.
Inverting the steering axis? Seriously, that's just wrong.
Enter the zen mode.
Loose 10.000 points in a crash.
Gain all three praises in a single run.
Complete a 10.000 points combo.
Gain the "Godlike!" praise.
Explore 100 maps.
Crash 50 times.
Explore 50 maps.
Enter a seed and create a map.
Gain 40.000 points in a single run.
Explore 25 maps.
Gain 20.000 points in a single run.
Gain 10.000 points in a single run.
Complete a 5.000 points combo.
Gain the "So Close!" praise.
Travel through a portal.
Complete your first run in Superflight.
Gain the "Awesome!" praise.
Gain 5.000 points in a single run.
Complete a 1.000 points combo.
Reach the end of a map.