They share the same station, but they are different operators. Flytoget, the dedicated Airport Express Train, reaches Oslo S in 19 minutes with a train every 10 minutes, for a published adult fare of NOK 268. Vy runs the regular R10/R11 regional and R12 local trains, which take about 23 minutes, run more than 60 times a day on weekdays, and do not publish one fixed fare — you check Vy’s journey planner for the current price. Children under 16 travel free on Flytoget when with an adult over 16.