After 11:30 p.m., Mini Mart is often your last stop
Jeju Airport in Terminal 1 starts shutting down not long after midnight, and Mini Mart fills the gap for late departures and arrivals who still need drinks and snacks. Think basic Korean convenience-store style: bottled water, canned coffee, instant ramen cups, chips, candy bars, and a small fridge of soft drinks and maybe a few beers, all priced a bit higher than downtown but still under about ₩3,000–₩4,000 per item. It sits airside, so you can grab something after security without doubling back.
Because most airport services close around 00:30, any mini‑mart that’s still trading draws a crowd of people hunting for one last kimbap triangle or ramen before everything goes dark. Selection thins out late: shelves with cup noodles and ready‑to‑drink coffee empty first, and fresh items like sandwiches or onigiri can be gone entirely by midnight. Don’t plan on full meals or souvenirs here; it’s a snacks‑and-drinks stop, not a proper restaurant.
Watch out for early‑morning and very late flights; SleepingInAirports reviewers say there is “almost nothing open” during these off‑peak hours, and Mini Mart is sometimes closed or down to a handful of drinks and instant noodles. If you’re landing after 23:30 or checking in for a red‑eye, buy water and basics in town at a CU or GS25 before heading to CJU. Practical move: if you see Mini Mart open on your way to the gate, stock up then and don’t assume another option will be open later.