Q&A for How to Get Lugia in Pokémon Silver

Mainly because there are other legendaries (Raikou, Entei and Suicune) who are more of a pain to catch. This is because in Silver, these three are roaming legendaries, so you have no warning of their approach and hence can't save prior to battling them. They're also prone to fleeing. Given that, you can save yourself some of the hassle by holding on to your master ball to use on one of these guys.

No - make sure you save your game before fighting so you can reset and battle him again.

You have to go to the tower and watch them flee before they are even visible in the grass. If you have done that, then keep searching around, and don't fly.

No, so you must save first, the same if you faint it. Make sure to be well stocked with ultra balls and paralysis.

It's found in the basement of Whirl Islands. You can surf there from Olivine or Cianwood City.