CJU4 in 20 seconds
Humboldt Airport serves Humboldt, CA.
AirportRoutes · updated Feb 16, 2026
Traveler reviews & tips
From people who've recently flown through Humboldt.
Rate this airport:
No tips for CJU4 yet — be the first to help fellow travelers.
Share your tip or review
Help fellow travelers at Humboldt Airport. Tips are reviewed before publishing.
Common questions about CJU4
Quick answers, straight from the schedule data.
Where is Humboldt Airport located?
Humboldt Airport is located in Humboldt, CA, at an elevation of 1865 ft. Its IATA code is — and ICAO code is CJU4.