Jet Route
What is jet route?
A jet route is a published high-altitude airway designated for flights operating from 18,000 feet mean sea level (MSL) up to and including flight level 450 (45,000 feet). These routes are identified by the letter "J" followed by a number (for example, J80). Think of it as the high-altitude counterpart to the low-altitude Victor airways you fly down below.
Also known as: J-route, high-altitude airway
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