We don't have to take bus to travel from Incheon to Gimpo Airport.

Korea has this express/commuter train service, AREX, that will take us from Incheon Airport to Gimpo Airport at the price of 3400 Won.

The journey takes around 28(Express Train) or 33(Commuter) minutes.

And the intervals 60 minutes for express train, and 12 minutes for commuter train.

(Anyway I not sure what's the difference for both trains...)

You can see the information here:
http://english.arex.or.kr/jsp/eng/index.jsp
zrayon blogged on 12:41 PM
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