The AREX system features two types of trains: the commuter trains that stop at 12 stations between Seoul Station and Incheon International Airport and a premium nonstop train that goes directly from one end of the route to the other.
The express nonstop train takes 43 minutes to get from Incheon International Airport to Seoul Station, while the all-stop train takes slightly longer at 58 minutes, according to AREX.
Travelers can choose either train depending on their destination. Most of the stops transfer to one of Seoul's nine major subway lines, which lead to different parts of the city.
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