Heathrow and Gatwick in London are running without restrictions on Tuesday.
After the most recent closure on Sunday, London's main airports reopened at 7 a.m., local time Monday morning with delays and cancellations.
AccuWeather.com meteorologists said prevailing winds will continue carrying ash across the U.K. and as far south as northern Germany and the Netherlands through midweek.
The ash is not expected to reach Spain, Italy or the rest of central and southern Europe.
Late Monday, the winds near the volcano started steering the ash due east of Iceland, preventing any new ash from being blown toward the U.K. However, it is difficult to determine how long the ash that just recently spread over the U.K.
will remain there.
If eruptions subside, AccuWeather.com meteorologists foresee winds dying down enough for residual ash to dissipate over the next few days. However, if ash continues to spew from Eyjafjallajokull late in the week, prevailing winds could again spread fresh ash across European airspace by the upcoming weekend.
Airports were closed Sunday across Scotland and the north of England, including those as far south as Manchester and Liverpool.
According to an Icelandic Met Office assessment made Tuesday morning, the eruption of the Eyjafjallajokull volcano shows no signs of ending. The height of the ash cloud has reached between 16,000 and 23,000 feet.
The Eyjafjallajokull volcano first started erupting in mid-April and subsequently grounded flights across Europe for almost a week. There have been periodic delays and cancellations of flights since that first week following the initial eruption.
Story by AccuWeather.com Meteorologist Heather Buchman with contributions from Senior Meteorologist Dave Samuhel and Carly Porter Related to the Story: Visit our Facebook Fan Page Follow us on Twitter Breaking Weather International Weather with Jim Andrews Europe Weather with Raychel Harvey-Jones