This afternoon's flight between Malta and Hamburg has been cancelled because of the ash cloud from a volcano in Iceland.
Air Malta said all other services are expected to operate normally.
The volcanic ash, a result of the recent eruption in Grimsvotn, is expected to clear from UK airspace by this afternoon.
However, officials in Germany said dozens of flights would be grounded in the country, with take-offs and landings cancelled in Bremen and Hamburg airports as a result of increased levels of ash in the atmosphere.
Earlier, Ryanair warned customers travelling to or from Bremen, Lubeck and Magdeburg airports that their travel could be disrupted.