Finally found a way to Schedule Airplane Mode
I've been looking for a way to schedule Airplane Mode in Shortcuts, however even in automation, it doesn't automatically turn on or off, it will pop up a notification for you to run it, so frustrating, after many tries and endlessly looking for answers on internet, I finally found a way to do it.
Because you can Schedule Do not Disturb, ( Y'all probably know what I'm gonna do next, but for those who doesn't, bear with me )
Go to Settings and select Do Not Disturb, choose the time you want to turn on and off for Airplane mode.
Then, go to Shortcuts and create a new Automation - Do Not Disturb
Choose When Do not Disturb is Turned On,
Press next and add action, search for Airplane Mode,
And again press next
Turn off Ask Before Running, and that's it! Airplane Mode is Scheduled.
I hope this helps :)