# Iwakuni Kintaikyo Airport (IWK / RJOI)

**Iwakuni Kintaikyo Airport** (IATA: IWK, ICAO: RJOI) is a medium airport in Iwakuni, Yamaguchi Prefecture, Japan. It opened in 1940. It has 2 runways; the longest is 2,438 m (8,000 ft). In 2024 it handled 518 thousand passengers.

Web page: https://dromopedia.com/airports/rjoi

## At a glance

- IATA / ICAO: IWK / RJOI
- Type: Medium airport
- Serves: Iwakuni, Yamaguchi Prefecture, Japan
- Opened: 1940
- Elevation: 2 m / 7 ft
- Coordinates: 34.1463, 132.2472
- Runways: 2
- Longest runway: 2,438 m / 8,000 ft
- Passengers: 517,562 (2024)
- Time zone: UTC+9 · Asia/Tokyo
- Website: http://www.mcasiwakuni.marines.mil/
- Wikipedia: https://en.wikipedia.org/wiki/Marine_Corps_Air_Station_Iwakuni (11 languages)
- Wikidata: https://www.wikidata.org/wiki/Q1030389
- Weather station: RJOI
- Ident: RJOI

## Timeline

- 1940: Iwakuni Kintaikyo Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 02/20 | 2,438 m / 8,000 ft | 46 m / 150 ft | Concrete | 009° / 189° | yes |
| 02R/20L | 366 m / 1,200 ft | 46 m / 150 ft | Concrete | 009° / 189° |  |

## Passengers per year

| Year | Passengers | Source |
| --- | --- | --- |
| 2013 | 356,170 | Wikidata |
| 2014 | 360,141 | Wikidata |
| 2015 | 363,559 | Wikidata |
| 2016 | 435,423 | Wikidata |
| 2017 | 483,004 | Wikidata |
| 2018 | 519,643 | Wikidata |
| 2019 | 513,750 | Wikidata |
| 2020 | 156,092 | Wikidata |
| 2021 | 110,017 | Wikidata |
| 2022 | 292,863 | Wikidata |
| 2023 | 460,287 | Wikidata |
| 2024 | 517,562 | Wikidata |

## Routes

2 destinations in 1 country. From the airport's Wikipedia article.

### Year-round (2)

- [HND](https://dromopedia.com/airports/rjtt.md) Tokyo Haneda International Airport · Japan · 705 km / 438 mi · All Nippon Airways, ANA Wings
- [OKA](https://dromopedia.com/airports/roah.md) Naha International Airport · Japan · 989 km / 615 mi · ANA Wings

## Airlines

The figure is how many destinations each airline flies from IWK, as the routes above have them. Hubs from Wikidata.

### Passenger (2)

- EH [ANA Wings](https://dromopedia.com/airlines/ana-wings) · 2
- NH [All Nippon Airways](https://dromopedia.com/airlines/all-nippon-airways) · 1

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Passengers | 518K (2024) | #1,098 of 3,974 | #349 in Asia | #43 in JP |
| Longest runway | 2,438 m / 8,000 ft | =2,750 of 29,858 | =867 in Asia | =48 in JP |
| Elevation | 2 m / 7 ft | =42,809 of 43,403 | =3,152 in Asia | =185 in JP |
| Age | Opened 1940 | =1,114 of 15,079 | =111 in Asia | =15 in JP |
| Runways | 2 | =715 of 29,978 | =31 in Asia | =3 in JP |

## Radio frequencies

| Type | Description | MHz |
| --- | --- | --- |
| ACC | FUKUOKA CON | 126.100 |
| APP | APP | 128.000 |
| ATIS | ATIS | 128.400 |
| CLD | CLNC DEL | 135.700 |
| DEP | DEP | 128.000 |
| GND | GND | 121.300 |
| INFO | FUKUOKA INFO IWAKUNI | 128.200 |
| PMSV | METRO | 34.460 |
| PTD | PTD | 134.100 |
| TWR | TWR | 123.800 |

## Nearby airports

- [MYJ](https://dromopedia.com/airports/rjom.md) Matsuyama Airport · 55 km / 34 mi
- [RJOF](https://dromopedia.com/airports/rjof.md) JASDF Hofu Airfield · 66 km / 41 mi
- [HIJ](https://dromopedia.com/airports/rjoa.md) Hiroshima Airport · 70 km / 43 mi
- [IWJ](https://dromopedia.com/airports/rjow.md) Iwami Airport · 72 km / 45 mi
- [OIT](https://dromopedia.com/airports/rjfo.md) Oita Airport · 88 km / 55 mi
- [UBJ](https://dromopedia.com/airports/rjdc.md) Yamaguchi Ube Airport · 92 km / 57 mi

## Sources

- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [Wikipedia: “Marine Corps Air Station Iwakuni”](https://en.wikipedia.org/w/index.php?title=Marine_Corps_Air_Station_Iwakuni&oldid=1373616853), revision of 6 Sep 2026 (CC BY-SA 4.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/rjoi/data