Most foreign flyers into Gimpo use Line 5 or the AREX, so Long-term Parking Lot A rarely even gets mentioned in English trip reports.
Long-term Parking Lot A sits on the airport grounds between the Domestic and International terminals at Gimpo (GMP), signed in English as “Long-term A.” It is an economy lot, usually used for trips of several days or longer rather than short pickups. Expect surface parking, stacked rows, and staff directing you into tight spaces compared with what you might know from North America or Europe.
Official airport maps show Long-term Parking Lot A as one of the furthest economy options from the International terminal, so plan on at least a 5–10 minute walk to check-in counters for flights on Asiana, Korean Air, and other international carriers. From Lot A to the Domestic terminal is slightly shorter, but you still want a buffer if you’re checking bags. Luggage carts are usually clustered near the terminal doors, not scattered inside the lot itself.
Tripadvisor threads on Seoul driving note that many airport lots in Korea work on a semi-valet basis, with staff sometimes asking for your keys so they can reshuffle cars into dense rows. One Seoul forum regular wrote that parking is only “fine if you speak Korean, and don’t mind handing your keys to a complete stranger,” which lines up with reports of stacked parking near Gimpo. Expect at least some conversation in Korean when dropping a vehicle in Lot A.
For Long-term Parking Lot A, the real difficulty for visitors is not the distance, but the lack of clear English rate boards and rules. Several travellers on Seoul forums say they cannot find transparent long-term pricing for specific Gimpo lots like A, only general mentions of daily caps. If you need a receipt for a company trip or want a hard number per 24 hours, ask a Korean-speaking friend or car-rental desk staff in the terminal to confirm current rates before you park.
Complaints in Seoul driving discussions often mention stress from Korean-only signage, including warnings about towing and special rules for overnight or multi-day stays. Around Gimpo, that same style of dense signboard shows up at long-term areas such as Lot A. If you cannot read Hangul, photograph the main sign when you enter, note your arrival time down to the minute, and keep your entry ticket somewhere separate from your passport so you are not emptying bags at the payment machine.
Practical tip: build in an extra 20–30 minutes if you plan to leave a rental or personal car in Long-term Parking Lot A at Gimpo, so you have time to sort out key hand-off, find English help on pricing, and still make check-in at either the Domestic or International terminal.