Great Circle Route
Definition
The shortest distance between two points on the surface of a sphere. Long-haul flights follow great circle routes, which appear as curved lines on most map projections but are straight on a globe.
Why Great Circle Route Matters for Pilots
Navigation concepts like Great Circle Route are tested on instrument rating exams and are essential for safe cross-country flying. Whether you are planning a VFR flight or navigating under IFR, a solid understanding of Great Circle Route ensures you can find your way accurately and efficiently.
Exam Tip
This concept is commonly tested in navigation-related questions on FAA and EASA exams. Make sure you can explain Great Circle Route in your own words for the oral exam. Practice applying this concept to real-world scenarios, not just memorizing the definition.
Related Terms
Share this with a fellow pilot
Related Content
Temperature Lapse Rate
Aviation glossary definition and exam tips.
Carburetor Icing
Aviation glossary definition and exam tips.
Fix
Aviation glossary definition and exam tips.
ATPL Theory Complete Guide
Master every subject covered in airline pilot exams.
Free Practice Exam
Test your aviation knowledge with real exam questions.
Built by a commercial pilot
Pass your written for $39 — every track, 60 days
Great Circle Route is one of 5,500+ exam topics in the All-5 Bundle: PPL / IR / CPL / ATPL / Part 107 / TAE. One-time payment, no subscription. Free 30-day extension if you fail your real exam.
Test your knowledge
Think you understand Great Circle Route? Challenge yourself with practice questions covering navigation and all other exam subjects.
Try Free Practice QuestionsMore Navigation Terms
VHF Omnidirectional Range(VOR)
A ground-based radio navigation aid transmitting radials in all directions. Pilo...
Distance Measuring Equipment(DME)
A radio navigation system that measures the slant range distance between an airc...
Non-Directional Beacon(NDB)
A ground-based radio transmitter that broadcasts on low/medium frequencies used ...
Instrument Landing System(ILS)
A precision approach system providing lateral guidance via the localizer and ver...
Would you pass the real exam right now?
Take a free practice quiz — real FAA-style questions, instant score. No signup to start.
Take the free quiz →