NaruGate

About · sources and method

Where NaruGate's numbers come from

We collect parking space counts, departure hall queues and flights for Incheon and other Korean airports from the airport corporations' open data. We do not alter what we receive, and anything we calculate says how it was calculated.

Run by naruday · Source 7 airport-corporation APIs on data.go.kr · Updated every 10–60 min (bus routes monthly) · Contact naruzoneee@gmail.com

Parking readings stored
28,988
Departure hall readings
28,692
Incheon record since
2026-09-12
Other airports since
2026-09-18

Counted from what is on our server now, every time this page loads. Times are Korea time (KST).

Where the data comes from

All of it is airport-corporation APIs on Korea's Public Data Portal (data.go.kr). We do not count anything at the airport ourselves. Our server fetches each feed on the schedule below and stores it; pages show the latest reading.

  • Incheon International Airport Corp. - parking

    Capacity and cars parked for the 19 lots at Terminals 1 and 2

    Dataset 15095047 · collected on the hour · last collected 2026-10-15 05:00

  • Incheon International Airport Corp. - departure hall congestion

    People waiting and congestion level at each departure hall

    Dataset 15148225 · collected every 30 minutes · last collected 2026-10-15 05:30

  • Incheon International Airport Corp. - passenger flights (multilingual)

    Departures and arrivals, scheduled and revised times, gates, status

    Dataset 15095093 · collected every 10 minutes · last collected 2026-10-15 05:40

  • Korea Airports Corp. - realtime parking, all airports

    Capacity and cars parked at Gimpo, Gimhae, Jeju, Cheongju, Daegu, Gwangju and other airports

    Dataset 15158681 · collected at 5 past each hour · last collected 2026-10-15 05:05

  • Korea Airports Corp. - realtime flight status

    Departures and arrivals at airports other than Incheon

    Dataset 15158625 · collected every 10 minutes · last collected 2026-10-15 05:40

  • Incheon International Airport Corp. - bus information

    Incheon airport bus routes, fares and stops

    Dataset 15095045 · collected monthly

  • Korea Airports Corp. - airport bus routes

    Airport bus routes nationwide, first/last bus and headway

    Dataset 15158690 · collected monthly

If a corporation's API stops or lags, our pages lag with it. If its data is wrong, ours is wrong in the same way.

How "usual" is calculated

Labels such as "busier than usual" compare the current reading with the same place at the same hour on earlier days. Weekdays and weekends are not separated yet: doing so would double the days needed before any comparison is possible.

  • Incheon parking — for each lot, the occupancy at that hour (the highest reading within the hour) on each earlier day, averaged. Shown only with 5+ days of record, and only called busier or quieter when the current value is at least 0.8 standard deviations and 5 percentage points away from that average.
  • Incheon departure halls — for each terminal, the average wait at that hour on each earlier day. Same rule: 5+ days, 0.8 standard deviations, and at least 2 minutes of difference.
  • Other airports' parking — the median number of free spaces at that hour over the last 28 days, so one odd day cannot move the baseline. Shown with 3+ days of record, and called tighter or roomier only when the gap is at least 20 spaces and more than 30%.

With too little record we show no comparison at all. Departure and regional parking comparisons also say how many days they are based on.

Things to know when reading

  • Received values and calculated values are kept apart. Free spaces, queue counts and flight status are the corporations' figures. Anything we calculate or estimate — "usual" comparisons, expected times a lot fills, travel times — carries its basis or the word "estimate".
  • Lot counters are sometimes wrong. When a lot of 1,000+ spaces reports 97% or more empty, reports 93% or more empty twice running, or jumps by more than 20% of its capacity in an hour, we treat it as a counting error: it shows "Counter check" instead of a number and is left out of totals. A parked-car count above capacity, which happens just before a lot fills, is capped at capacity.
  • The record is still short. Our current server holds Incheon from 2026-09-12 and other airports and the Terminal 2 departure halls from 2026-09-18. Holiday comparisons can only cover holidays we have recorded.
  • Not a substitute for official notices. For reservations, fees and flight changes, Incheon Airport (airport.kr) and Korea Airports Corporation (airport.co.kr) come first.

Corrections

When we have published a wrong number, it is recorded here. Entries are added on top and never removed.

2026-09-28 · Incheon parking

Incheon free spaces and occupancy were shown upside down

Period
From 2026-06-12 (first collection, on the previous server) until the fix went live at 09:28 KST on 2026-09-28. The current server's record starts after the move, which is why the "record since" date above is later.
What was wrong
For all 19 Incheon lots, free spaces, occupancy, the full/busy labels and the hourly record were inverted. At 09:13 on 28 September, for example, T1 long-term P1 had 591 free spaces; we showed 2,177. Parking towers that were in fact full were often labelled "Counter check".
Cause
In the Incheon parking API (dataset 15095047) the parking field is cars currently parked. Our collector stored it as free spaces. Free spaces are capacity minus that value.
Fix
The collector was fixed at 09:28 on 28 September. At 10:20 the same day we corrected the Incheon record held on our current server (from 2026-09-12): 7,220 readings, 7,030 hourly aggregates and 16 daily summaries. The whole database was backed up first. The cause was confirmed against the same-time figures on Incheon Airport's official parking page (airport.kr).
Not affected
Parking at Gimpo, Gimhae, Jeju and other Korea Airports Corporation airports comes from a different API and was read correctly all along (checked against Gimpo's official board the same day). Departure queues and flights were not involved.
Prevention
The meaning of each API field is now written down in one file that every piece of code goes through, and an automatic check before each deploy tests that meaning against a sample response.

Who runs it

NaruGate is one of the everyday-information sites run by naruday. Some pages carry Coupang Partners ads, and those pages say so near the top. We are not affiliated with or speaking for either airport corporation.

If a number looks wrong, tell us which page, which number, and what time you saw it. We will check it against the corporation's raw data, and if we were wrong we will fix it and record it above.

naruzoneee@gmail.com · Contact

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