Depends on what I'm looking for.
If I wanted to find a group to play with, it isn't that hard in my area with Meetup.com.
But, if I just want to play the occasional one-off game, that can be difficult, especially finding something that fits with my schedule. But if my schedule were more flexible and I'm willing to drive a bit, I could find a couple Adv. League games per week.
There are not too many DMs that are interested in one-off games or having a "guest" player. Therefore, when I want to game for just a night or when travelling, it is usually a board game or some obscure RPG. Which is great—lot's of fun. But hard to find such opportunities for D&D outside of Adv. League games.