Upvote:4
Sightseeing flights are available (e.g. MΓ½flug) and cost around 300 euros per person.
However, there is currently no way for tourists to approach the eruption on land due to the extremely hazardous conditions on the ground.
[...] due to the volcanic eruption in the area north of VatnajΓΆkull glacier, the highland north of VatnajΓΆkull glacier is closed for all traffic.
-- From the latest (15.09.2014) status report from the Civil protection agency in Iceland
Edit: I should add that it seems that the eruption is waning. No telling how it will develop, of course. This might be the end, or merely the end of the beginning.