[nacnud]

You still can: http://www.heavens-above.com/IridiumFlares.aspx?lat=0&lng=0&...

(you'll probably need to set your location)

[gus_massa]

Easier steps if you don't know the exact latitude and longitude of your place:

1) Go to http://www.heavens-above.com/

2) Press "Change your observing location"

3) Choose the city and press "update" at the bottom

4) Press "Iridium Flares"