AREX Airport Railroad
Rail · Seoul · Airport Railroad Co.
2 lines · 15 stations · 2 interchanges
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Lines
Quick facts
- Operator
- Airport Railroad Co. runs AREX between Seoul Station, Gimpo, and Incheon Airport.
- Payment
- All Stop trains behave like the transit network. Express trains are a separate airport-rail product with their own ticketing.
- Check the current fare before riding. The important choice is All Stop for flexibility versus Express for a cleaner airport run.
- Airport linkAirport rail
- Airport links
- AREX serves Incheon Airport Terminals 1 and 2, Gimpo Airport, Hongik University, Gongdeok, and Seoul Station.
- Seoul Subway
- Network type
- Airport railroad with a local All Stop service and a faster Express service.
- Airport railExpress service
Mike’s notes
AREX is the airport answer for Seoul, but there are two versions of the answer.
The All Stop Train is the flexible one. It links Incheon Airport, Gimpo Airport, Hongik University, Gongdeok, and Seoul Station, so it behaves like a normal transit layer with airport usefulness attached.
The Express Train is the cleaner airport product. It skips the local stops and is aimed at Seoul Station to Incheon Airport trips. If your hotel is near Seoul Station or you are connecting to a train there, it can be the calmer choice.
Airport limousine buses still matter when your hotel is not near Seoul Station or an AREX transfer. With luggage, a direct bus to the right district can be better than a technically faster rail trip with two awkward transfers.
Short history
2007
Airport rail begins
The first AREX section opens between Incheon International Airport and Gimpo Airport.
2010
Seoul Station connection
AREX reaches Seoul Station, making the airport railroad the default rail arrival path for many visitors.
2018
Terminal 2 extension
The line extends to Incheon Airport Terminal 2, matching the airport's newer long-haul terminal layout.