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.
Explore 100 maps.
Crash 150 times.
Inverting the steering axis? Seriously, that's just wrong.
Gain all three praises in a single run.
Enter the zen mode.
Explore 50 maps.
Gain 40.000 points in a single run.
Gain the "Godlike!" praise.
Crash 50 times.
Explore 25 maps.
Loose 10.000 points in a crash.
Complete a 10.000 points combo.
Enter a seed and create a map.
Complete a 5.000 points combo.
Gain the "So Close!" praise.
Gain 20.000 points in a single run.
Gain 10.000 points in a single run.
Gain 5.000 points in a single run.
Complete a 1.000 points combo.
Travel through a portal.
Reach the end of a map.
Complete your first run in Superflight.
Gain the "Awesome!" praise.