English For Aviation

English is the language of international aviation. Pilots and air traffic controllers who work on international routes must show that their English meets the ICAO Language Proficiency Requirements, and airline staff on the ground and in the cabin use English every day with passengers and colleagues. A2Z Language offers instructor-led aviation English courses built around the ICAO rating scale.

The ICAO language proficiency scale

ICAO rates aviation English on six levels. Level 4 is the minimum for pilots and controllers in international operations.

Level	Name	What it means
6	Expert	Communicates effectively and naturally in all situations. Usually no further testing is required.
5	Extended	Communicates well in common and unexpected situations, with occasional errors that do not affect meaning.
4	Operational	The minimum operational level. Communicates effectively on familiar topics and can handle unexpected events, with some errors.
3	Pre-operational	Errors and limited vocabulary often interfere with communication. Not sufficient for international operations.
1–2	Pre-elementary and Elementary	Very limited English, below operational requirements.

Candidates are rated on six criteria: pronunciation, structure (grammar), vocabulary, fluency, comprehension and interactions. Your overall level is the lowest of the six, so one weak area can hold the whole rating down. Holders of Level 4 and Level 5 are retested at regular intervals set by their aviation authority.

Who the course is for

• Student and qualified pilots preparing for an ICAO English assessment or a renewal.
• Air traffic controllers who want to move from Level 4 to Level 5.
• Cabin crew, dispatchers, ground handling and airline customer service staff.
• Aviation engineers and maintenance staff who read manuals and write reports in English.

What we practise

• Standard phraseology and plain English. Phraseology covers routine situations; plain English is needed when something unusual happens, such as a medical emergency on board, a bird strike or a runway incursion.
• Listening to radio communication with different accents, speeds and background noise.
• Describing and explaining: technical problems, weather, delays and changes to a plan.
• Interaction: checking, confirming and clarifying, so misunderstandings are caught quickly.
• Pronunciation of numbers, call signs and the aviation alphabet, where small errors matter.

Course format

Courses run online as one-to-one or small-group lessons. We start with a level check against the ICAO criteria, then plan the course around your weakest areas. For airlines and training organisations we can tailor a course for a group of staff, for example cabin crew service English or engineering report writing.

Frequently asked questions

Do you issue ICAO certificates?

No. Official ICAO English ratings are issued through assessments approved by your national aviation authority. Our courses prepare you for that assessment.

I am Level 4. Is it worth aiming for Level 5?

Often, yes. A higher level usually means longer validity between tests and more confidence when something goes wrong. The step from 4 to 5 is mostly about handling unexpected situations in plain English, which is exactly what we practise.