Heathrow Airport said today that it expected the vast majority of travellers will be unaffected by this month's planned strikes by Border Force workers.
British Border Force workers are due to strike for several days from December 23 at airports including Heathrow, the UK's busiest, and Gatwick.
"We are doing everything we can to protect a full flight schedule on strike days, so departing passengers should expect to travel as normal," Heathrow said.
It said arriving passengers with UK, EU, US, Canadian and some other passports will be able to use e-gates as usual and their journeys should be largely unaffected on strike days.
Border Force has contingency measures to ensure other arriving passengers are cleared safely and as quickly as possible, Heathrow said.
On Friday, Britain's defense ministry said military personnel are training to carry out passport checks in case they need to be deployed.
Heathrow also updated on its traffic figures today. It said 5.6 million people travelled through the airport in November, down from 5.9 million in October.
It said over 55 million people have travelled through Heathrow so far this year, which is nearly 70% of 2019 levels.