Definition
A flight path that is indirect or roundabout rather than direct, often involving a longer track than a straight line between two points. In the contact approach context, ATC may deny a contact approach request if it would require the aircraft to follow a circuitous route to the airport.
Plain English
A path that takes a long way around instead of going straight to where you're going.
Context Anchor
Seen in contact approach discussions, where the FAA explains what a contact approach is not meant to be used for.
Derivation
From Latin 'circuitus' meaning 'a going around,' from 'circum' (around) + 'ire' (to go). The same root gives us 'circuit' and 'circle.' A circuitous route literally means a path that goes around rather than straight through.
Why Pilots Care
If you request a contact approach but accepting it would require ATC to vector you the long way around (around traffic, terrain, or airspace), the controller may deny the request. Knowing this helps you anticipate when a contact approach is realistic and when it isn't.
Intuition Check
Do not read “circuitous route” as a normal airport traffic circuit or pattern. Here it means an indirect, roundabout path.
Example Sentence 1
ATC denied the contact approach because clearing the aircraft for it would have required a circuitous route around other arriving traffic.
Example Sentence 2
During the contact approach, ATC assigned a circuitous route to sequence the arrival behind other traffic.