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Flight Phase

Transition level

The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitude use the transition level to set standard pressure.

Quick answer: The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitude use the transition level to set standard pressure.

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Quick answer

The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitude use the transition level to set standard pressure.

Why it matters

Transition level matters because it supports clear communication in Flight Phase contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Editorial context

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Questions and answers

Questions and answers

What is Transition level?

In this glossary, Transition level refers to: The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitude use the transition level to set standard pressure.

How is Transition level used in aviation?

In aviation communication, this term appears in contexts such as: "Expect transition level FL120; set standard pressure passing transition altitude."

Why does Transition level matter in aviation?

Transition level matters because it supports clear communication in Flight Phase contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Who uses Transition level?

Transition level is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does Transition level belong to?

In this glossary, Transition level is grouped under Flight Phase. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitude use the transition level to set standard pressure.

Operational example

Expect transition level FL120; set standard pressure passing transition altitude.

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Flight Phase

Exam relevance

  • ICAO Level 4
  • ICAO Level 5
  • ICAO Level 6
  • EASA FCL.055

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

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