A whole lot of you will be flying into Helsinki for Worldcon over the next few days, and will be wondering how you get from the airport to the city. So I made a video of what I did when I arrived. For the princely sum of €5 you can get a train from the airport to either Pasila, the station by the convention center, or Helsinki Central. The full journey takes just 28 minutes, and the trains are very frequent. Here’s how it is done.
Update: In answer to Lynn’s question in comments, the schedules are available online here. The trains have a gap in service between roughly midnight and 5:00am, but there are a number of bus services that full the gap. The 615 is half-hourly through the night.