Jet2 has warned ongoing strike action by Spanish air traffic controllers today (21 March) could cause delays.

Passengers flying to Alicante, Fuerteventura, and Arrecife in Lanzarote may be affected, the airline said.

Strike action in Spain has been planned between 4pm and 7pm (local time) at 16 airports, including Ibiza, Seville and Valencia, every Tuesday this month.

The strike action began last month and will run until mid-April.

Jet2 said: “We wanted to let you know that industrial action is taking place on Tuesday 21 March, supported by Air Traffic Service in Spain.

“This means that flights operating to Alicante, Fuerteventura and Lanzarote may be delayed.

“If you’re affected, rest assured we’ll try to keep any disruption to a minimum. Please arrive at the airport at least two hours before your departure time.”

Jet2 told passengers flying on Tuesday to check its website and departure screens for further updates.

However, TUI said the strikes had so far not impacted its services.

“The Spanish ATC strikes have been going on since 27 February and are expected to last until 13 April,” a TUI spokesperson said.

“Thus far we have not seen any significant impact on any of our flights.”

Meanwhile, Ryanair, Jet2 and easyJet warned some flights operating to or through French airspace could be delayed or cancelled because of industrial action by air traffic control staff that began yesterday.

The strike is scheduled to run until Friday, 24 March.