In Alaska, things tend to be kind of wet, so there isn't so much risk of wildfire. Also for Alaska, you tend to fly up there by air and travel around by air. You cannot take bear spray or flares by air to Alaska, so if you intend to use either one in Alaska, you'll have to buy there. The bush planes in Alaska are not pressurized. So, imagine that you are flying out and the bear spray dispenser is activated by change in pressure. That toxic stuff would fill the cabin, the pilot would likely be incapacitated, and the plane would likely go down. So, in lots of places there, they don't allow bear spray. But, since they are not so worried about wildfire, the idea of a bear flare is OK.
This is a handheld marine flare with a pull ring. It looks somewhat like an ordinary highway safety flare, except that it ignites by the pull ring in the handle end, and it only burns for 60 seconds. It is just the thing that you would want if you were out on the water in a disabled boat and you think you see help approaching in the distance. Well, when hiking alone in grizzly country, you can ignite one of those pretty quickly and wave it at the animal. They don't like the bright light or the smoke, so they tend to go the other way. In serious grizzly country, the guides carry two flares, and sometimes they get the pull ring out and ready to pop, but they seldom have to actually ignite it. In Alaska, a number of stores stock bear flares, especially as you get close to bear country, e.g. the Kenai Peninsula.
The label on mine: C*I*L /Orion. Handheld white flare. Made in Italy.
In the Lower 48, stores never stock them unless they are marine/yacht/boating stores.
The good news is that a bear flare is much lighter than bear spray. It is a little more for close quarters combat, though.
Black bears are way too cuddly to use either on 'em.
Edit/Correction: I just weighed. The flare is 9 oz., and the spray is 11.5 oz.