Myeongdong booths sit within half a percent of the market rate; US airport kiosks run 5–12% off. Here’s the thing: on the same day, with the same $1,000, that’s a hotel night gone. The ranking hasn’t moved in years—learn it once and fly.
Subway 1,550 KRW, bus 1,500 KRW—identical on every card. Here’s the thing: what differs is topping up, refunds and where the unlimited pass works. Break-even is 7 rides on the 3-day pass, 13 on the 7-day. Seoulog did the maths by length of stay.
The all-stop AREX runs about ₩5,000, the express ₩13,000, the airport bus ₩17,000–18,000, and a flat-rate taxi ₩70,000–95,000. Here’s the thing: none of them wins every time. Who you’re with, where you’re staying and when you land decide it.