This is just a general question, not UA-specific, but...

Does anyone know if there exists a decent online site for general airline timetable searches?

I used Expedia's timetable search feature for years, but in the last few months, it seems to have (1) become completely non-functional (i.e. all searches come up with null results) and then (2) disappeared entirely from their site. I've tried Googling and can't find it, nor can I find anything about them discontinuing it.

This is the closest substitute I've found, and it's not as good.

Is there any other way to search airline timetables without booking?