Passengers planning on flying to Europe in the next two days are likely to encounter delays and disruption to European flights as Air Traffic Control staff are planning to strike in Italy and Portugal.
Airlines are advising customers, particularly those on short-haul flights, to check their websites for the status of their flights, see below for details on where to check the status of your flight.
easyjet will advise all affected passengers on flights into and out of Lisbon and on flights to and from Milan Malpensa via email. Customers can also check their flights on the airline's Flight Tracker page.
British Airways have also re-timed a number of flights to avoid the strike period and have made some cancellations. The airline advised passengers to check its website for up-to-date information concerning flights departing in the next two days.
Low-cost airline Ryanair has announced it will move to fully allocated seating on all flights from February 2014.
Passengers who do not pay €5 (£4.23) to select their seats will be allocated them during the 24 hours prior to departure.
The airline said the move was in response to feedback from customers who complained about rushing to the airport in a bid to get the best seats.
Ryanair also warned that its profits are likely to fall for the first time in five years.
Ryanair has apologised to Dr Muhammad Taufiq al-Sattar, whose wife and three children were killed in a Leicester house fire, after he was charged €188 (£158) to change his booking on the morning of the fire.
Ryanair's chief executive Michael O'Leary said a letter has been sent sympathising with Dr Taufiq al-Sattar and addressing the airline's handling of the booking change.
"I think you have to make exceptions in cases like that and we made an exception last night when we became aware of it," Mr O'Leary said. "We want to respond sensitively to these cases."
The budget airline boss said the Dr Taufiq al-Sattar has been refunded the extra charge.
Ryanair intends to increase baggage charges until no-one takes its flights with luggage that needs to go in the hold, the airline's boss said today.
Michael O'Leary added it was likely that "at some point" airlines would start charging even for hand luggage.
Speaking at a news conference in London, Mr O'Leary said that Ryanair had increased its charge for hold luggage by €20 (about £17.50) for the summer period.
Asked what was the logic behind charging people more for the summer period, he replied: "That's when they are likely to bring more bags."
Mr O'Leary went on: "We will keep increasing charges until we get rid of (hold) bags."
He said Ryanair had reduced the number of its passengers who checked in hold baggage from 80 percent to 19 percent and that this was saving the airline "a fortune in money".
Footage has emerged of a decidedly scary airport landing when a pilot was forced to land a Ryanair plane sideways in reported 70mph gales.Read the full story ›
Low-cost airline Ryanair has said it will cut its flights from Stansted Airport by 9% over the next year.
Ryanair had planned to increase the number of flights to and from the Essex airport by 5% from April, but will now cut 170 flights across 43 routes a week because of increased fees at Stansted.
The announcement came after Stansted was sold by Ferrovial/BAA to Manchester Airports Group for £1.5 billion.
Ryanair blamed its decision on a 6% increase in charges at the airport, which it says should be investigated by the Civil Aviation Authority
Ryanair spokesman Robin Kiely said:
"It's bad enough that Ferrovial/BAA has doubled prices over the past six years and presided over record traffic falls at Stansted, but it appears that the CAA now rewards this commercial failure by allowing Ferrovial/BAA to again raise fees in 2013 to compensate for its traffic declines in 2012."
Ryanair has admitted defeat in its takeover bid for Aer Lingus but vowed to fight the decision in the courts.
The European Commission told the airline that the 694 million euro (£596.7 million) buyout plan would be rejected.
The low-cost carrier claimed European chiefs were holding it to much higher standards than any other EU airline.
Ryanair spokesman Robin Kiely said: "It appears clear from this morning's meeting that no matter what remedies Ryanair offered, we were not going to get a fair hearing and were going to be prohibited regardless of competition rules."
Ryanair boss Michael O'Leary has predicted that travellers will need to pay more in fares after today's ruling on passenger compensation by the European Court.
ITV News Consumer Editor Chris Choi reports.
The Which? consumer group said there is no reason airlines should increase fares in the light of the European Court of Justice ash cloud ruling.
Today's ruling by the European Court of Justice simply confirms the existing situation relating to the 2010 ash cloud travel disruption - that airlines should reimburse passengers for reasonable costs, including accommodation food and transport.
Airlines already account for compensation in their ticket costs, so there should be no reason for any airline to increase their prices as a result.
The European Court of Justice has ruled that Ryanair should have compensated passengers whose flights were cancelled because of volcanic ash in 2010.
Twitter users have been reacting to the ruling today:
Michael O'Leary quick enough to take your money... then threatens to hike up fares when he doesn't get his own way..