In western Canada (where I live) almost all the commercial E-6 labs are gone.
Just a couple blocks up the hill from me is a massive yellow-painted hulk of a building that used to be Kodak's regional headquarters. I used to take many of my films there back in the 1980's and 1990's. Now part of it is a dodgy-looking grocery store, but the majority of it sits empty.
Driving by this decaying, sad-looking building is a constant reminder of Kodak's decline. But they still have a faded photo of Michael Landon in the window, from when he was the spokesman for Kodak's quality assurance. It's almost like he's saying "Come here, half-pint! Let me process that Ektachrome for you!"
Back on topic (for Canadians): "Don's Photo", which is a chain in Alberta / Saskatchewan / Manitoba will process E-6, but the turn-around is about 10 days. They send it to their E-6 lab in Winnipeg, I think.
I finally got tired of the hassle and waiting, and just ordered the Tetenal E-6 kit from Germany. Easy to use, excellent results. I do my own E-6 at home.