The airports, trains and roads are all affected by the cold and snow. The good news is today Heathrow announced they will be opening their second runway, but even though this will help get things moving their backlog means it won't be fast or a smooth process at the airport.
BBC Report on the Snow and Travel
Check your airline to confirm your flight is still going ahead before going to the airport. For the Eurostar, confirm your train and show up an hour before your departure time. Always confirm you flight/train before leaving so that you won't be stuck at the airport waiting.
Good Luck!
Blog Written by Tammy Liu