Heavy snow has disrupted airway, railway and road traffic in the UK and northern Europe this week.

In the UK, the Met Office declared an "amber weather warning" and urged people to be cautious, after about 30 centimeters fell in some parts of the country, with Wales and the Midlands bearing the brunt.

There have been closures at London’s Luton and Stansted, and Birmingham airports, according to ABC News.

Meanwhile, dozens of flights were cancelled at Heathrow airport, and many of the main train lines and London’s Underground stations were disrupted, reported the BBC.

"Airlines are responsible for ensuring their flights are fully de-iced before they are operated, and this is resulting in some delays and cancellations," Heathrow Airport said in a statement posted on Twitter.

As well as experiencing delays, thousands of British homes were left without electricity and hundreds of schools were shut on Monday.

Passengers travelling from Germany’s busiest airport, Frankfurt Airport, were warned to “expect delays” after 300 flights were cancelled.

In the Netherlands, heavy snowstorms led the country to issue a “code orange” weather warning for most of the country. Similar delays to those in Germany and the UK were expected in Holland as well.

Heavy snow spread southward to Italy, causing some travel disruption and school closures in northern regions, including Liguria, Piedmont and Tuscany, Italy's La Stampa daily reported.