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Studies & Degrees in Aviation English

Aviation English is the English that pilots and air traffic controllers use on the radio, and by extension the working English of cabin crew, engineers and ground staff. English has been the common language of international aviation since the International Civil Aviation Organization (ICAO) chose it in the 1950s. Research into accidents and incidents later showed that weak language skills were often a contributing factor, and ICAO introduced its Language Proficiency Requirements (LPR), which came into operation in 2008.

The subject has two parts. The first is standard radiotelephony phraseology: the fixed words and phrases for clearances, readbacks, weather and routine instructions. The second is plain English for everything that the phraseology does not cover, particularly unexpected situations and non-routine events such as a technical problem, a medical emergency or a misunderstanding that has to be cleared up quickly. A course trains listening to radio transmissions and different accents, clear pronunciation, aviation vocabulary and fluent interaction under time pressure.

Levels and qualifications

Aviation English is not a degree. It is a specialised language course, usually followed by a language proficiency test whose result is entered in the pilot's or controller's licence.

  • The ICAO scale. ICAO's rating scale has six levels, and candidates are assessed in six language areas: pronunciation, structure, vocabulary, fluency, comprehension and interaction. Pilots and air traffic controllers who operate in international airspace must reach at least Operational Level 4 in all six areas to use the radiotelephone.
  • Who tests. There is no single worldwide test. ICAO left implementation to the national civil aviation authorities, so each authority decides which tests and assessors it accepts. The Irish Aviation Authority, for example, has required a language proficiency endorsement since 5 March 2008, does not currently accept web-based testing and accepts only tests completed under the EU aircrew rules.
  • Retesting. A Level 4 result is not permanent. In Ireland it must be reassessed every three or four years, depending on the regulation that applies.
  • Example of a test. ELPAC, the EUROCONTROL test for air traffic controllers and pilots, has two papers: a computer-marked listening test and a live speaking test rated by two accredited assessors. The level awarded is the lowest rating across the six criteria.

A course certificate from a language school is therefore not the licence endorsement itself. Before booking, ask the school which test its course prepares for and check that your own licensing authority accepts that test.

Where to study

SpainExchange lists 3 active schools for aviation English: one in the United Kingdom, one in Ireland and one in Malta. All three are English language schools in English-speaking countries, so the course can be combined with general English and daily practice outside the classroom.

AClass Academy of English, in Pembroke, Malta, publishes a dedicated aviation English course for pilots preparing for training or licensing exams, licensed pilots, air traffic controllers, flight engineers and cabin crew. Its price list in October 2026 shows one-to-one aviation English at €370 per week for 10 lessons and €645 per week for 20 lessons; combined courses of general and aviation English are available only for closed groups of 6 or more participants. The University of Limerick Language Centre, in Ireland, teaches general and academic English on the university campus and is a Cambridge exam centre. Crest Schools of English is in Edgware, in suburban London. Ask each school directly about current aviation English dates, because these courses are often arranged on request for individuals or for groups from an airline or a flight school.

Careers

Aviation English is a working requirement more than a career in itself. Pilots and air traffic controllers need the ICAO level for their licence. Cabin crew, aircraft maintenance engineers, dispatchers and airport staff are not covered by the same licence rule, but they also work in English: AClass, for example, addresses its course to flight engineers, cabin crew and other aviation professionals who need strong English skills. Language teachers can also specialise in aviation English as trainers or test assessors; the International Civil Aviation English Association (ICAEA) recommends that such teachers work closely with pilots or controllers as subject matter experts.

Frequently asked questions

What is ICAO Level 4?

It is the Operational level on ICAO's six-level scale, and the minimum that pilots and air traffic controllers in international operations must reach in all six language areas.

Does an aviation English course give me the licence endorsement?

No. The endorsement comes from a test accepted by your civil aviation authority. A course prepares you for that test, so check first which tests your authority accepts.

How long is an ICAO Level 4 result valid?

It has to be renewed. The Irish Aviation Authority states that Level 4 proficiency must be reassessed every three or four years, depending on the relevant regulation; other authorities publish their own periods.

Is general English enough for a pilot?

No. The test looks at standard radiotelephony phraseology and at plain English in aviation situations, including unexpected ones, so general English has to be combined with aviation vocabulary and radio practice.