Fly from London Heathrow to Stockholm Arlanda Airport in just over 2 hours, then take the Arlanda Express Train directly into Central Station. The express train only takes 20 minutes from the airport to the city and guarantees to be on time or they will refund your fare. This really is the easiest and quickest way to travel from the airport to the city. For groups you can arrange to hire whole carriages and even have a red carpet on the platform. Prices start from approx £26 for adults single fare, and £46 for a return. http://www.arlandaexpress.com/start.aspx