Helicopter charter and weather: what can stop a flight

Key points

• Cloud base and visibility matter most. Helicopters usually fly by sight, so they need to see where they are going.
• Rain on its own rarely stops a flight. Heavy rain that reduces visibility, fog, ice and thunderstorms do.
• Strong or gusty wind, especially at the landing site, can limit take-off, landing and comfort.
• The pilot always has the final decision, and nobody on our side will push for a flight the pilot is not happy with.
• If the flight is cancelled because of the weather, you pay nothing.
• We check the forecast at booking, the day before and on the morning, and agree a fallback in advance.

What weather can stop a helicopter charter?

On helicopter charter and weather, five conditions cause almost every weather cancellation: low cloud, poor visibility, fog, strong or gusty wind and icing. Thunderstorms and very heavy showers are a sixth, and snow depends on how much of it falls and whether the landing site can be seen.

The reason is simple. Most helicopter charter flights are flown by visual reference, which means the pilot keeps the ground in sight and stays clear of cloud. If the cloud is too low or the visibility too short, the flight cannot go safely by that method, however good the aircraft is. Some pilots and aircraft can fly by instruments in suitable conditions, but the destination also has to be usable, and a private landing site rarely is in poor visibility.

Ice is a different problem. Freezing conditions in cloud or rain can form ice on the rotor blades and airframe, and unless the aircraft is approved for it, the pilot avoids those conditions entirely.

Can helicopters fly in rain, wind and cold?

Yes, within limits. Light and moderate rain is normal for a helicopter, as long as visibility holds up. Cold on its own is not a problem, and modern turbine helicopters run well in winter. See our night and winter flying guide for the seasonal picture.

Wind needs more care. Each helicopter has a maximum wind for take-off and landing, and gusty conditions or turbulence behind buildings and trees at a small private site make a landing harder and a ride bumpier. A steady wind is often fine; a gusty one near the limit is not. The weather at your destination matters as much as the weather at the start, which is why we check both and the route between them.

Who decides whether the flight goes?

The pilot decides, using the weather limits set for that aircraft and that flight. It is a professional judgement, and it is deliberately conservative. The pilot can accept, delay, divert or cancel, and the answer can change as the forecast develops.

We never ask a pilot to take a flight they are not comfortable with, and you should be wary of any company that would. The pilot's call, supported by a twin-engine fleet, protects you, and the weather cancellation wording protects your budget. In plain words: if the flight is cancelled because of the weather, you pay nothing.

How do we plan around the weather?

We build weather into the plan from the start. At booking we look at the typical conditions for the route and season. The day before, we check the forecast, including the Met Office view, and tell you how it looks. On the morning we recheck. If conditions look marginal we have several options: an earlier or later departure, a different landing site, a different route, or a fallback by car.

Fixed commitments, such as a same-day return, call for a fallback (see same-day business trips). If you must be at a meeting, a funeral or a match at a set time, tell us, and we agree a trigger point beforehand, for example "if the flight has not left by 08:00, the car goes". Our sister service Executive Global Travel provides chauffeur cars for exactly this case.

Which times of year and regions are most affected?

Winter brings shorter days, lower cloud and more fog, so the chance of a delay is higher. Autumn mist and winter fog often clear by late morning, which is a reason to plan a later departure on such days. Summer storms are usually local and short. Coastal routes and high ground can have their own cloud and wind, and the north and west of the UK tends to see more low cloud than the south-east.

This is a tendency, not a rule. Most flights go ahead as planned. The point of planning is to make a bad day manageable. For wider guidance see helicopter charter for business, which covers how business travellers build in contingency.

What should I do if the forecast is bad?

• Tell us as early as you can what is fixed and what is flexible.
• Be open to an earlier departure, which often avoids afternoon deterioration or morning fog.
• Agree the fallback before the day, not on the morning.
• Keep luggage light so a switch to road transport is simple.
• Stay in touch: the phone line is open 24 hours.

For the full run of the day, see what happens on the day of a helicopter charter. When you are ready, request a quote and tell us about any hard deadlines.