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The best vantage point depends on how far north you can realistically travel. Here are the options that came back in the retrieved sources:

In North America:

• Fairbanks, Alaska sits almost directly under the auroral oval and logs roughly 240 active nights a year, which makes it the most dependable base on the continent.
• Yellowknife, in Canada’s Northwest Territories, has dry inland air and unobstructed horizons; skies stay clear on about 71% of nights between late August and April.
• Churchill, Manitoba pairs aurora viewing with tundra lodging, and heated viewing domes run nightly from early January through the middle of March.

Farther north:

• Tromsø, Norway lies above the Arctic Circle and is reachable on a direct flight, which makes it the easiest first attempt for most travellers.
• Abisko, in Swedish Lapland, sits inside a rain shadow that keeps its skies unusually clear even when the surrounding region is overcast.
• Ittoqqortoormiit, Greenland offers exceptionally dark skies and almost no light pollution, though reaching it requires a chartered flight.

Keep in mind that solar activity and cloud cover both shift nightly, so plan for at least three or four nights in one location.