For London-Winnipeg flights, you can use City Airport, Gatwick Airport, Heathrow Airport, Luton Airport, Stansted Airport, Windsor and Eton Central Railway Railway Station, Euston Railway Station, King's Cross Railway Station, Paddington Railway Station, St Pancras Railway Station, Tottenham Hale station Railway Station, Victoria station Railway Station, Waterloo International Railway Station as departure airport, and Winnipeg James Armstrong Richardson Intl. Airport, Union Railway Station for arrival.