An ash cloud from an Icelandic volcano has grounded hundreds of flights in the UK.
Airports across Scotland are closed and services are affected in Manchester, Newcastle, Birmingham, Liverpool and London Stansted.
Flights have also been suspended at Belfast International Airport, with disruption likely to continue throughout the day.
Holidaymakers due to take flights to Spain and elsewhere have been advised to contact their airline for updates.
With many flights to Spain and elsewhere being halted by the volcanic ash plume currently travelling across the UK, passengers are being urged to prepare for further disruption.
Matthew Paxton, chief operating officer at Holiday Extras, said travellers expecting to fly tomorrow may wish to consider booking accommodation for the night.
"By reserving your room at an airport hotel you can afford to relax during this time of uncertainty and get safely to the airport in good time," he added.
Transport hubs in Scotland were the first to ground flights this morning, with the rest of the country following later in the day.
People planning to book flights to Spain in the near future may be interested to learn that Liverpool John Lennon Airport (JLA) has seen its passenger numbers increase significantly over the last quarter.
The transport hub handled 15 per cent more travellers than it did during the same period in 2009.
Neil Pakey, deputy chief executive for Peel Airports, said Liverpool is bucking the national trend and is currently one of the UK's best performing airports in terms of passenger growth.
"More and more passengers are now flying via the airport and improved accessibility from across the region means that JLA is becoming the airport of choice for a growing numbers of travellers from right across the north-west," he added.
Parents have been offered some advice on how to keep their children in check on flights to Spain and other popular destinations.
Writing for Cheapflights.co.uk, Deborah Dickson-Smith said adults should "prepare for the worst" and be patient with their sons and daughters.
Those taking holidays to Spain this Easter have been urged to stay safe in the sun.
ABTA - The Travel Association has published a new leaflet containing advice for people jetting abroad in the near future.
Entitled How to Have a Safe and Healthy Holiday, it cautions families against spending too much time soaking up the sun's rays.
The organisation's destination and sustainability manager Angie Hills said that although there are many health benefits associated with having a break abroad, it is important to take precautions.
Brits planning to take flights to Spain in the near future may be interested to learn that budget airline Flybe is expecting a bumper Easter.
Ticket sales for the regional airline are up by 16 per cent compared to the same period in 2009.
Good Friday is expected to be the carrier's busiest day, with thousands of people set to take flights to Spain and other popular destinations.
Mike Rutter, Flybe's chief commercial officer, commented: "Flying to and from 70 regional UK and European airports, Flybe is in a better position than any other regional airline to meet the demands over what is one of the busiest travel periods of the year.
Britons taking flights to Spain in the near future may be interested to learn that budget airline Ryanair is to start selling newspapers on board flights from London Stansted.
Copies of the Independent and Independent on Sunday will be available for £1, with the carrier planning to extend the scheme to other airports if it proves successful.
Ryanair spokesperson Sinead Finn said she expects the initiative to be a success with passengers.
Some of the destinations currently served by the airline include Alicante, Murcia, Malaga, Barcelona and Madrid.
Families taking flights to Spain over the coming weekend may be interested to learn that Southampton Airport is set to host an Easter egg hunt.
The Easter Bunny will be hiding 100 chocolate treats around the terminal building for youngsters to find while waiting for their plane to depart.
Around 29,000 passengers are due to pass through the airport over the holiday period, representing a 3.6 per cent increase on 2009.
Brits planning to take flights to Spain over the coming weeks may be interested to know that Liverpool John Lennon Airport is expecting its passenger numbers to jump by around 20 per cent over the Easter period.
Approximately 300,000 travellers will pass through the transport hub within the next fortnight.
As a result, officials are urging passengers to allow plenty of time for checking-in and making their way through security.
Airport director Andy Gower said Easter is likely to be the busiest period of the year so far.
Brits planning to book flights to Spain may be interested to learn that budget airline Ryanair has opened a new base at Leeds Bradford Airport.
With two aircraft stationed at the airport, the carrier will operate 17 routes, serving destinations such as Malaga, Alicante and Barcelona.
Dara Brady, a spokesman for the airline, commented: "To celebrate the opening of our Leeds Bradford base we are releasing 1m 5 (£4.50) seats for travel in late April and May on over 500 Ryanair routes throughout Europe.