Welcome to FT, by the way.

In all honesty, the reality is that there is no way you're going to get there tonight for $400, it just isn't going to happen. I was just working on alternative airports, possibly flying out at the crack of dawn tomorrow, but the best I was finding was around $700.

The FT community is amazingly resourceful, and if there is a way someone will find it, but I'd be very surprised.