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 50 maps.
Complete a 10.000 points combo.
Gain 20.000 points in a single run.
Explore 25 maps.
Loose 10.000 points in a crash.
Gain the "Godlike!" praise.
Gain all three praises in a single run.
Crash 50 times.
Complete a 5.000 points combo.
Enter a seed and create a map.
Gain 10.000 points in a single run.
Travel through a portal.
Gain 5.000 points in a single run.
Reach the end of a map.
Complete your first run in Superflight.
Gain the "So Close!" praise.
Complete a 1.000 points combo.
Gain the "Awesome!" praise.
Inverting the steering axis? Seriously, that's just wrong.
Enter the zen mode.
Explore 100 maps.
Crash 150 times.
Crash 300 times.
Gain 40.000 points in a single run.