Short on days. Not on sky.
Four nights, private from the airplane door. When the wind swings north, Vatnajökull wrings the cloud out of it before it reaches the coast. We put you beside the glacier lagoon for two of those nights, and the hotel calls your room when the lights come up.
Five days isn't long enough to fly north and do it properly, so this trip stays south and goes all the way east. Your Icelandic driver-guide meets you at Keflavík. Geysir and Gullfoss on the first afternoon, then a countryside hotel well away from town lights.
The second day runs along the waterfalls and the black beach to the glacier coast. Two nights at the lagoon give you two chances at a clear sky without driving anywhere. The hotel watches it for you and wakes you when the lights come. In between, a small boat among the icebergs on the quiet lagoon, Diamond Beach at first light, and a walk into Vatnajökull National Park. Ice caves are an add-on when the season and the ice allow. Then back west to Reykjavík for the last night.
That is not the sky we're after. We want pillars, curtains, a whole horizon that moves. It comes from reading the weather and the forces behind it, not from standing in a parking lot hoping. In twenty-plus years of running these trips, we've missed the lights on a tour maybe once a decade. We can't order it. We can put you under the right sky on the right nights, with the freedom to move when the forecast says move.
Estimated list price per person in USD, everything listed as included above. International airfare and travel insurance excluded. Estimates use current exchange rates and this itinerary's contracted and quoted rates. Your exact price is confirmed within 48 hours of your request, and no price is guaranteed until the tour is booked.
Some operators run on volume and the cheapest logistics they can get away with, because that is what pays for the advertising. We run the other way. Native Icelandic guides we have known for years. Vehicles we would put our own family in. And the places the buses don't go.
The glacier coast is a long way from Reykjavík. Most short trips drive out, look, and drive back. We stay two nights, so one cloudy night doesn't cost you the trip.
Everyone boats the famous one. Next door is a lagoon with smaller boats, closer ice, and a fraction of the people. Same glacier. Better morning.
Iceland's hotel chains drop their contract rates in November and January. Same rooms, same breakfast, about a third off. The aurora doesn't read the rate sheet. If your dates are flexible, January is the connoisseur's month.
Four nights, private every day. Aurora by the glaciers, the lagoon twice, Reykjavík last.
Five nights. Akureyri for the lights, the glacier coast, one full day in Reykjavík.
Six nights. The full shape, with three days in Reykjavík at the end.
A bright moon washes out a faint aurora. The darkest skies come in the days around the new moon, so if your dates are free, build the trip around one of these weeks. A strong show beats a thin moon every time, but most nights aren't the strongest show.
One exception: photographers. A quarter to half moon lights the mountains, the ice and the waterfalls, so the landscape shows up in the frame under the lights instead of going black. If the picture matters more than the faintest arcs, aim a few days off the new moon.
And the months around the equinoxes, late September and March, tend to bring more geomagnetic activity than midwinter.

Twenty-plus years leading expeditions through Iceland's volcanoes, glaciers, and winters. The person who prices your trip is the person who answers the phone. And I've known the drivers and guides who run it for years, often decades.
Or call 303-498-9808, text 303-409-7400, or write info@icelandx.com.