Heathrow has announced contingency plans to keep the airport operating despite a 10-day strike by security guards. Members of the Unite union will walk out on Friday in a dispute over pay.
The airport says it is deploying an extra 1,000 members of staff and its "entire management team" to help passengers. Those planning to travel have been warned of delays going through security.
A Heathrow spokesman said: "We will not let these unnecessary strikes impact the hard-earned holidays of our passengers. Our contingency plans will keep the airport operating as normal throughout.
"We are deploying 1,000 additional colleagues and the entire management team, who will be in the terminals providing assistance to passengers over the busy Easter getaway. As at any busy time, it may take a little longer than usual to get through security, but this will be well-managed and kept flowing.
"Passengers can help us ensure they get the best start to their journeys by checking their flight status with their airline before travelling to the airport, arriving at Heathrow no earlier than two hours before short-haul flights and three hours before long-haul flights, and by being ready for security with their compliant liquids and electronics out of their hand luggage."
