Here is the full list of all 12 One Way Flight achievements.
Get more 9999 scores in Fishtrix mini-game
Catch max amount of fishes
Run the Flight mini-game more than ten times at once
Win Crystals mini-game without the shifting crystals
Explore all locations
Open temple door
Upgrade camp to the last state
Crafted all constructions.
Collect all documents
Restore a totem
Complete hidden object mini-game without misshitting
Reach a panorama location