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The International Civil Aviation Organization (ICAO) and European Aviation Safety Agency (EASA) require all pilots and air traffic controllers involved in international flights to demonstrate proficiency in English. This is crucial for safety  in aviation. Therefore we call it ICAO English or language proficiency.

The ICAO English exam can be taken directly with pilot.style flight school. ICAO English can either be taken online or in person. 

Depending on the assessed level of English proficiency you will be assigned a level, which corresponds to the time validity of the exam.

Both ICAO and EASA using a rating scale from Level 1 (Pre-elemeltary) to Level 6 (Expert).

Level Description Requirement
6 Expert Native or near-native proficiency
5 Extended Good fluency, rare misunderstandings
4 Operational ✅ Minimum required to fly internationally
3 Pre-operational Below standard, not acceptable for international operations
2 Elementary Very limited
1 Pre-elementary Almost no ability

How to prepare for ICAO English

  • Practice speaking English daily (aviation-focused is best).
  • Listen to real pilot-ATC communication (LiveATC.net).
  • Record and review your own voice.
  • Do mock tests or talk to a language coach with aviation experience.
  • Use ICAO English prep books.

ICAO Language Skills Assessed

Six core areas are evaluated:

  • Pronunciation – Understandable accent  
  • Structure – Grammar and sentence structure  
  • Vocabulary – Use of aviation and general vocabulary  
  • Fluency – Speaking smoothly and naturally  
  • Comprehension – Understanding others in real-time  
  • Interactions – Managing conversations (e.g., clarifying, checking) 

Types of ICAO English Questions

You might face:

  • Listening to ATC recordings and answering questions.
  • Describing aviation-related pictures or scenarios.
  • Role-playing as a pilot during standard and non-standard communication.
  • Responding to emergency situations or unexpected changes.

ICAO English Validity

  • Level 4: Valid for 3 years  
  • Level 5: Valid for 6 years  
  • Level 6: No expiry