It's crazy when you think about it. Just a few years back everyone was stunned to see the Northwest Passage and the Northern Sea Route (also known as the Northeast Passage) open at the same time. Last year we saw the first boats making it through both passages in one season. Some people might try to downplay the significance of this fact by referring to Amundsen or the St. Roch, but we have a guy this year who did the Northwest Passage solo. I'm certain the ghost of poor Sir John Franklin is howling with envy.
But still, for most people it has become more or less normal now for the Northwest Passage and Northern Sea Route to open up towards the end of the melting season. Such is human nature, I guess. We might look up briefly with a bored look if someone tells us that those Passages open up a bit earlier every year, but that's it. The new normal is not so new and very normal. I'm covering it anyway, just to let you know.
There's some white stuff left in the Northwest Passage, but I think it's safe to say it's open. The Northern Sea Route has been open for a while now, with proper Suez-size tankers apparently going through it. Here it is:
People who like to have more details can read this recent paper by Shibata et al: Interannual changes in sea-ice conditions on the Arctic Sea Route obtained by satellite microwave data (hat-tip to Angela Marchbank)