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