NASA:
As the third brightest object in the sky the space station is easy to see if you know when to look up.NASA’s Spot The Station service gives you a list of upcoming sighting opportunities for thousands of locations worldwide, and will let you sign up to receive notices of opportunities in your email inbox or cell phone. The space station looks like a fast-moving plane in the sky, but it is dozens of times higher than any airplane and traveling thousands of miles an hour faster. It is bright enough that it can even be seen from the middle of a city!
Obviously, the times of overflight vary and you likely won’t see every sighting but it is still kind of cool to get an email or SMS, go outside, look up and see the bright ISS transiting your night sky.