Iruma Air Base
Sayama, Japan
Iruma Air Base
Japan Air Self-Defense Force's premier tactical air base.
- ›Headquarters of the Japan Air Self-Defense Force Air Defense Command.
- ›Hosts the annual Iruma Air Show, attracting over 100,000 visitors.
- ›Home to the JASDF Blue Impulse aerobatic demonstration team's performances.
- ›Originally constructed during the Imperial Japanese Army era in the late 1930s.
- ›Restricted to military operations; no commercial airline services operate here.
Iruma Air Base, designated RJTJ, is a major Japan Air Self-Defense Force installation located in Sayama City, Saitama Prefecture, northwest of Tokyo. Established during the post-war era on former Imperial Japanese Army grounds, it serves as the headquarters of the Air Defense Command and is one of the busiest JASDF bases in the country. The base is not open to civilian commercial traffic but is renowned for its annual air festival, one of Japan's largest public airshows.
- Military Operations Facility — Restricted JASDF operational buildings handling military flight operations, command functions, and personnel movement.
- Taxi services available near the base entrance via Sayama city taxi operators
- Seibu Sayama Line — Inari-Yama Koen Station is the closest rail access point
- Seibu Shinjuku Line connecting to central Tokyo from nearby Tokorozawa Station
- Private vehicle access via National Route 16
- Tokorozawa Grand Hotel
- Hotel Wing International Hanno
- Toyoko Inn Tokorozawa
- APA Hotel Sayama
There are no public dining facilities within Iruma Air Base, as it is a restricted military installation. During the annual Iruma Air Festival, temporary food stalls and vendor tents are set up on the base grounds for visiting public. The surrounding Sayama and Tokorozawa areas offer a good range of local restaurants, convenience stores, and shopping centres.
- Public access is only permitted during the annual Iruma Air Festival, typically held in November — check JASDF announcements for exact dates.
- Inari-Yama Koen Station on the Seibu Sayama Line is the most convenient rail stop when attending the air festival.
- Arrive very early on air festival days as crowds can exceed 100,000 visitors and surrounding roads become heavily congested.
- Photography of aircraft is generally welcomed during the public airshow, but strictly prohibited on normal days near the perimeter.
AI-assisted overview, verified against public sources.
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Iruma Air Base is a Japan Air Self-Defense Force (JASDF) base located in the city of Sayama, Saitama Prefecture, north of western Tokyo, Japan.
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