Warning sign
Low-flying aircraft sign
What does the Low-flying aircraft sign mean?
Warns of low-flying aircraft or sudden aircraft noise, such as near an airfield.
Also known as: Aircraft warning sign
What it means
Aircraft may fly low overhead, with a risk of sudden noise.
The aeroplane symbol warns that low-flying aircraft or sudden aircraft noise are possible, for example near an airfield or a flight path.
The noise can startle you or animals. Keep both hands on the wheel and stay alert.
Where you'll see it
Near airports, airfields and low flight paths.
Rules to know
The sign warns of low-flying aircraft or sudden aircraft noise.
Know Your Traffic Signs, p. 13
Common mistakes
Mistake: Looking up at the aircraft while driving.
Instead: Keep your eyes on the road. The sign warns of noise and distraction, not something to watch.
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© Crown copyright. Free to reuse under the Open Government Licence v3.0, as long as the sign is reproduced accurately and not in a misleading context.
Related signs
Similar
Low-flying helicopters
Warning sign
The same warning for helicopters.
See also
Side winds
Warning sign
Another hazard that can catch you out.
More warning signs
All warning signs
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- Know Your Traffic Signs (Department for Transport, Sixth edition, 2023), Warning signs, p. 13
Sign image: Department for Transport, Traffic sign images (diagram 558). © Crown copyright, reused under the Open Government Licence v3.0.
Last reviewed 11 October 2026. This page explains the sign in our own words; for the full rules, see The Highway Code. How we source and check content