Frontiers computers are down

[Lewisc]

You can't book flights,change flights or do online check in on the app or website. It's been down since around noon

Frontier says "scheduled maintenance". A poster on flyertalk speculates ransomwhere might be the real cause

 

[EACarlson]

Flyertalk is usually a more reliable source than the airlines themselves.

 

[Lewisc]

Flyertalk is usually a more reliable source than the airlines themselves.

I wasn't buying scheduled maintenence which wasn't announced in advance and was in the middle of a work day.

System is now up but some fares appear to be incorrect.