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