Around 2,700 jobs are at risk after one of the UK's biggest parcel delivery services companies fell into administration on Christmas Eve.
Liverpool Airport has temporarily closed after a "deluge" of snow.
A John Lennon Airport spokesman said four flights from Malta, Berlin and Bucharest had been diverted to Manchester Airport, while a fifth from the Isle of Man had returned to the island's airport.
He added: "We are currently closed. It is just while we are clearing the runway. We have had quite a deluge here."
Police have issued warnings for roads in the Midlands and North West because of snow and sleet.
Snow has forced Liverpool's John Lennon Airport to close. Five flights into the north west airport have so far been rerouted elsewhere to allow runways to be cleared, a spokesman said.
Snow has been falling in parts of North Wales, the North West and the Midlands, with a Met Office Level Three amber cold weather alert in place and a yellow warning of snow across a large swathe of the UK.
David Sidebottom, passenger director at the independent watchdog Passenger Focus, said: "Investment in maintenance and improvement is necessary, and we passengers understand that.
"But overrunning works that disrupt already-limited festive travel are frustrating.
"Our research is clear: passengers want to be kept on the train wherever possible, they want to know before buying a ticket if part of the journey will be by bus, and they want plenty of staff on hand to signpost where to go and what to do.
"We will be looking to see that operators and Network Rail are doing all in their power to alert passengers, to help them make alternative arrangements and to make it easy for them to claim refunds or compensation."
Network Rail confirmed that trains to and from King's Cross would be cancelled tomorrow due to the overrunning engineering works.
The railways operator said that the work was part of a £200 million Christmas investment programme.
It is one of 300 projects being undertaken over the holidays across 2,000 sites up and down the country by some 11,000 railway engineers.
A spokesman said: "What has happened is really regrettable and unfortunate, but it is a small part of a massive amount of engineering investment taking place over Christmas."
National Rail said on its website that services to and from King's Cross would be "significantly disrupted" tomorrow.
It said: "A revised timetable is currently being developed and will be made available as soon as possible. Please check our website regularly for updates."
East Coast Trains has said passengers due to travel from King's Cross tomorrow should start or finish their journey at Finsbury Park in north London, with at least one change of train.
A reduced service to and from the station will go ahead as planned on Sunday, with trains leaving up to 20 minutes earlier than normal from King's Cross.
East Coast spokesman, Paul Emberley, said:
There will be no train services in or out of London Kings Cross, one of the country's busiest terminals, tomorrow because of overrunning Network Rail engineering works north of the station, East Coast has said.
Sony's comedy film The Interview grossed over $1 million on Christmas Day after the company decided to partially release it in US cinemas.
The distributor initially withdrew the film from cinemas last week after a cyber-attack that the FBI has blamed on North Korea - the nation whose leader is assassinated in the spoof film.