The Bankruptcy & Restructuring page in the Office provides an overview of your airline’s financial condition and options for restarting or closing the airline.
Airline closure cannot be reversed, and the closed airline cannot be restored.
Financial Health
The Financial Health tab shows a quick overview of your airline’s overall financial condition.
If the bank has issued a financial warning, the page shows the estimated time until the next review and the cash threshold that triggered the warning. The bank may take over the airline if its financial condition does not improve.
Restructuring
This feature is coming soon, stay tuned :)
Close & Restart
Close & Restart permanently closes the current airline and liquidates its assets, but keeps your membership in the game world active. You may then create a new airline in the same game world, and normal weekly billing continues.

The number of restarts is limited. After reaching the limit, you may pay the normal game joining price to reset the restart counter to zero. Resetting the counter does not close or otherwise change your current airline.
When closing down the airline you will need to explicitly confirm your request to close the airline by typing in the full name of your airline at the closure confirmation dialog. This is to prevent accidential airline closures.

Close & Leave Game
Close & Leave Game permanently closes the airline and ends your membership in the current game world.
Weekly billing stops, and any eligible Credit refund of the game joining fee is shown before confirmation. Rejoining the game world later requires paying its joining price again.

Closure announcement
When closing an airline, you may select how the closure is described in the public news item visible to other players. This selection affects only the news wording and has no effect on the closure process.