Border Force officers are to take strike action for eight days over Christmas. 

PCS members employed by the Home Office on passport control will take action on December 23, 24, 25, 26 28, 29 and 30 and 31 at the following airports:

• London Heathrow
• London Gatwick
• Manchester
• Birmingham
• Cardiff
• Glasgow airports

What should I do if I’m travelling over Christmas? Information form https://www.bbc.co.uk/news/uk-politics-63893115

• Airports have advised travellers to check the status of their flights before travelling
• The Home Office has said passport checks may take longer on strike days
• The strikes are likely to affect people returning to the UK rather than departing
• The length of delays will depend on how well the Home Office can fill the staffing gaps
• If your flight is cancelled due to strike action, airlines must offer rebooking or a refund

For further Information (These are links to external websites):

https://www.pcs.org.uk/news-events/news/border-force-officers-strike-over-christmas