Do boutiques have sample dresses for sale even if there isn’t a sample sale going on?

Yes and usually this is the time of year that samples are available as new collections are coming in!

I've only physically stepped foot in a few bridal boutiques but all of them had at least a few samples on sale regardless of whether there was an active sample sale promotion at the time or not.

The salon I got my dresses from is actually selling all of their sample gowns online right now since they can't hold traditional sample sales. They are final sale, so I'm not sure if you're up for looking at them since you can't try on beforehand, but if you are, I'll send you the link.

Mariposa Online Sample Sale

You can see the dresses by going to the menu where you can see the entire catalog or by individual designers. They don't filter by sizing, which is unfortunate, but there are some quality gowns to look at.

You're very welcome! Both of my dresses were samples from this boutique, so not only am a huge proponent of buying sample gowns, but I know this salon takes great care of their dresses.