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.
Gain 40.000 points in a single run.
Crash 300 times.
Gain all three praises in a single run.
Gain the "Godlike!" praise.
Complete a 10.000 points combo.
Explore 50 maps.
Crash 150 times.
Inverting the steering axis? Seriously, that's just wrong.
Explore 25 maps.
Enter the zen mode.
Crash 50 times.
Reach the end of a map.
Gain 20.000 points in a single run.
Gain 10.000 points in a single run.
Loose 10.000 points in a crash.
Complete a 5.000 points combo.
Gain 5.000 points in a single run.
Travel through a portal.
Gain the "Awesome!" praise.
Enter a seed and create a map.
Complete a 1.000 points combo.
Complete your first run in Superflight.
Gain the "So Close!" praise.