It's slightly cheaper (about USD$10) if you book it on the usairways.com website.
Go to
www.usairways.com
Put BUF in the From box
Put MIA in the To box
Select "Flexible"
And click on "search flights"
from there you can select the fare, and it will show the available dates and then you can pick your flights.
Oh, and if you were to take this flight with me I could upgrade the both of us with my certificates
[This message has been edited by FlyerAl (edited 01-16-2002).]