{
  "@context": "https://schema.org",
  "@type": "Airport",
  "address": {
    "@type": "PostalAddress",
    "addressCountry": "Canada",
    "addressLocality": "La Grande-4"
  },
  "airlines": [
    "Regional carriers",
    "Charter operators",
    "General aviation"
  ],
  "amenityFeature": [
    {
      "@type": "LocationFeatureSpecification",
      "name": "Domestic to Domestic Connection Time",
      "value": "30 minutes"
    },
    {
      "@type": "LocationFeatureSpecification",
      "name": "Domestic to International Connection Time",
      "value": "60 minutes"
    },
    {
      "@type": "LocationFeatureSpecification",
      "name": "International to Domestic Connection Time",
      "value": "60 minutes"
    },
    {
      "@type": "LocationFeatureSpecification",
      "name": "International to International Connection Time",
      "value": "90 minutes"
    },
    {
      "@type": "LocationFeatureSpecification",
      "name": "Interline Connection Time",
      "value": "120 minutes"
    }
  ],
  "city": "La Grande-4",
  "code": "YAH",
  "connection_tips": "La Grande-4 Airport (CYAH) is a specialized facility exclusively serving Hydro-Qu\u00e9bec's La Grande-4 hydroelectric generating station in northern Quebec. The airport does not publish METAR weather reports, requiring pilots to rely on La Grande Rivi\u00e8re Airport weather data 143 nautical miles away. The harsh subarctic climate means flights are frequently weather-dependent, with winter temperatures dropping well below -30\u00b0C and summer conditions bringing challenging wind patterns. Flight planning must account for fuel availability limitations and the remote location's impact on alternate airport options.\n\nThis remote airstrip features a single runway (09/27) with a compacted snow and gravel surface that becomes particularly challenging during freeze-thaw periods. Due to its specialized purpose, the facility primarily handles charter flights, personnel transportation for the power station, and emergency medical evacuations. Travelers should expect basic or no passenger amenities, as the facility focuses on operational support for the generating station. The Montreal FIR provides air traffic control services, but communication can be challenging due to the remote northern location.\n\nWinter maintenance is conducted Monday through Friday from 1200Z to 2200Z, and operations outside these hours may face surface conditions unsuitable for landing. Connection opportunities are extremely limited as this is not a public commercial airport. Ground transportation is typically arranged through Hydro-Qu\u00e9bec for authorized personnel only. Summer months offer the most reliable operating conditions, though blackfly seasons can impact ground operations.",
  "country": "Canada",
  "flag_url": "https://flagcdn.com/w320/ca.png",
  "flight_search_affiliate_link": "https://book.beatthatflight.com.au/?currency=CAD",
  "frequent_traveler_tip": [
    "Important regional facility for La Grande-4 area transportation needs.",
    "Check your flight status before leaving for the airport.",
    "Allow extra time during peak travel periods at this airport.",
    "Keep important documents easily accessible at this airport.",
    "Download your airline's mobile app for updates at this airport."
  ],
  "global_map_link": "https://www.google.com/maps?q=La+Grande-4+Airport",
  "google_maps_reviews": {
    "rating": 0.0,
    "recent_reviews": [],
    "total_reviews": 0
  },
  "hotel_affiliate_link": "https://book.beatthatflight.com.au/?currency=CAD",
  "iataCode": "YAH",
  "icao": "CYAH",
  "international": false,
  "last_modified": "June 2026",
  "last_updated": "2026-03-29",
  "latitude": 53.7558,
  "layover_planner_info": "Basic regional facility with essential services.",
  "longitude": -73.6753,
  "mct_domestic_to_domestic": 30,
  "mct_domestic_to_international": 60,
  "mct_interline": 120,
  "mct_international_to_domestic": 60,
  "mct_international_to_international": 90,
  "missed_connection_help": "Consider major regional hubs for broader connections.",
  "name": "La Grande-4 Airport",
  "region": "North America",
  "related_airports": [
    {
      "code": "YUL",
      "name": "Montreal-Pierre Elliott Trudeau International Airport"
    },
    {
      "code": "YFG",
      "name": "Fontanges Airport"
    }
  ],
  "terminal_info": "La Grande-4 Airport operates as a specialized industrial aviation facility exclusively serving Hydro-Qu\u00e9bec's La Grande-4 hydroelectric generating station, positioned at 1,005 feet elevation in the remote wilderness of northern Quebec to provide essential personnel transportation and logistics support for one of the world's largest hydroelectric installations generating 2,780 MW of clean energy. Located at coordinates 53.7547\u00b0N / 73.6753\u00b0W deep within the James Bay Project infrastructure network, this facility represents critical aviation support for Quebec's energy independence and sustainable power generation serving millions of Canadians.\n\nThe airport features a single runway (09/27) with specialized compacted snow and gravel surface designed to accommodate charter aircraft and corporate jets transporting Hydro-Qu\u00e9bec personnel, contractors, and essential supplies to the isolated generating station accessible only via the Trans-Taiga Road system or aircraft. Terminal facilities incorporate industrial-grade construction with specialized heating systems, personnel processing areas, and cargo handling capabilities designed for the demanding subarctic environment where temperatures can reach -40\u00b0C during extended winter periods.\n\nOperational infrastructure emphasizes safety and reliability for this critical energy sector facility, with runway maintenance conducted Monday through Friday from 1200Z to 2200Z and surface conditions varying significantly during freeze-thaw periods requiring specialized pilot training and aircraft capabilities. The facility operates under Montreal FIR air traffic control with communications challenges typical of remote northern locations, requiring advance coordination through Hydro-Qu\u00e9bec operations for all aircraft movements.\n\nStrategically essential for Quebec's renewable energy infrastructure, La Grande-4 Airport supports the operation and maintenance of facilities that provide approximately 3% of North America's hydroelectric capacity while serving as a critical transportation hub for one of the engineering marvels of the modern world. The facility exemplifies specialized aviation infrastructure supporting sustainable energy development in Canada's vast northern territories, ensuring reliable operations for clean power generation serving urban centers throughout Quebec and northeastern North America.",
  "terminal_map_url": "https://skyvector.com/airport/CYAH"
}