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