Airport chaos continues to rumble on as Ryanair crew members are set to go on strike later this month.
Cabin crew in Spain will go on strike for six days, on June 24, 25, 26, 30 as well as July 1 and 2.
Workers are taking action over discontent about working conditions and pay, the Union Sindical Obrera (USO) said.
While crew at UK airports are not currently expected to following suit, the strikes could impact holidaymakers attempting to fly back from Spain.
Travel chaos continued at Heathrow Airport Twitter/adityatoni28
Queues snaked down the terminal building Facebook/Nolan's Airport Transport
It comes as queues and delays continued to be a regular occurrence across UK airports.
Huge queues have already been seen today at major airports including London Heathrow, Manchester and Bristol.
While the situation wasn’t improved by EasyJet cancelling a further 46 flights, much to the frustration of passengers.
Some 10,000 customers were reportedly affected by the flight cancellations, including a total of 29 at Gatwick.
Passengers were complaining about the lack of notification about their flight being cancelled, with many claiming they found out at late notice.
EasyJet have cancelled a further 46 flights Gareth Fuller
One person wrote on Twitter: “My flight was cancelled without notification I just realised when I logged into the app and changed it for an earlier flight. Can you please confirm?”
While another person said: “Should have been back in UK now but EasyJet cancelled our flight this morning.”
A third added: “Not one e-mail that our flight has been cancelled disgraceful service to customers found out when we went to check in online.”
An easyJet spokesman said: “Due to the ongoing impact of the challenging operating environment on our daily operations, we have made a small proportion of additional advance flight cancellations for June.
“We are very sorry for the inconvenience this will cause.
“We are informing customers in advance to minimise the impact on their plans and provide the option to rebook before travelling or receive a refund, and our customer service hours have been extended to support affected customers.
“We continue to monitor the operation closely and take action in advance as needed.”