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