

If you don’t want to disable biometric auth, familiarize yourself with your phone and see if it has lockdown mode. Apple phones and most modern Android phones support it, using it will require your password / pin for unlocks. Put it into lockdown mode for the flight.
Somehow not surprised I’m at just over 21K spent. That being said, that was from half a decade ago when I uh… Wasn’t as mature. Probably only 1K since then and strictly on games, not micro transactions.