When weather closes in on a UK airport, the damage is rarely limited to one flight. Fog, snow, high winds and thunderstorms disrupt the entire system for hours or days afterwards, in ways most passengers don't anticipate. This guide explains why weather delays cascade, what each type of weather actually does, what airlines owe you, and how to get home when everything stops.
Key takeaways
- Fog reduces landing rates — a full airport can't simply absorb the loss.
- Snow and ice stop the airfield: de-icing, runway clearing, ground handling.
- Storms and thunder ground aircraft and displace crews and planes.
- Delays cascade — the aircraft, the crew and the slot must all realign.
- Weather is usually an “extraordinary circumstance” — care yes, compensation usually not.
01 / FOGFog: the quiet killer of schedules
Fog rarely closes an airport outright — it does something more insidious. In low visibility, aircraft must be spaced further apart on approach, which cuts the number of landings per hour. At an airport running near capacity — which describes Heathrow on any normal day — there is no spare capacity to absorb that loss. The result is cancellations, often announced in waves, and knock-on delays that outlast the fog itself by many hours.
02 / SNOWSnow and ice: the airfield stops
Snow attacks everything at once. Runways and taxiways need clearing. Every departing aircraft needs de-icing, which takes time per plane and creates a queue. Ground crews, baggage handlers and fuel bowsers all slow down. And staff have to get to work through the same weather you did. Even a modest snowfall can halve an airport's throughput for a day.
03 / STORMStorms, wind and thunder
High crosswinds can make landing unsafe, causing diversions — which is how you end up at Stansted when you booked Heathrow. Thunderstorms stop ground operations entirely: for safety, ramp staff cannot work in a lightning risk, so baggage and fuelling simply halt, even while the sky above the runway looks fine.
04 / CASCADEWhy delays outlast the weather
This is the part that surprises people. Once the fog lifts, the problem doesn't end — because an airline's operation is a chain. To fly your flight, they need the aircraft (which is now stuck at the wrong airport), the crew (who are now out of legal hours, or in the wrong city), and a slot (at an airport with a queue of displaced flights). Realigning all three takes a day or more. That's why you can be delayed by weather that ended yesterday.
05 / OWEDWhat you're owed
Weather is generally treated as an “extraordinary circumstance” outside the airline's control. In practice that usually means: the airline should still provide care — refreshments, and accommodation if you're stranded overnight — and rerouting or a refund if your flight is cancelled. But cash compensation is generally not payable for genuine weather disruption, unlike a technical or staffing failure.
If the airline fails to provide the care it owes, you can often arrange your own and claim reasonable costs back. Keep every receipt. This is general information, not legal advice — check your airline's policy and the current CAA guidance.
06 / GET HOMEGetting home when it all stops
On a bad weather day, everyone reaches for a car at the same moment, and app prices climb accordingly. A pre-booked fixed fare doesn't surge, whatever the weather is doing to demand. We run 24/7, we track your flight so a weather delay simply moves your pickup, and we can collect you from whichever airport you actually landed at — including getting you back to a car stranded at the airport you were meant to reach. We also email a VAT receipt, which is what you'll need if you're claiming costs back.
FAQFrequently asked questions
Why does fog cause so many flight cancellations?
In low visibility, aircraft must be spaced further apart on approach, which cuts the number of landings per hour. At an airport running near capacity like Heathrow, there's no spare capacity to absorb that, so flights get cancelled in waves.
Why am I still delayed when the weather has cleared?
Because the airline's operation is a chain: they need the aircraft, the crew and a landing slot to realign. After disruption, aircraft are in the wrong places and crews are out of legal hours, so it can take a day or more to recover.
Do I get compensation for a weather delay?
Usually not. Weather is generally treated as an extraordinary circumstance outside the airline's control, so cash compensation typically isn't payable — though the airline should still provide care, and rerouting or a refund if cancelled. This is general information, not legal advice.
What should the airline provide if I'm stranded by weather?
Care — refreshments, and accommodation if you're stranded overnight — plus rerouting or a refund for a cancellation. If they fail to provide it, you can often arrange your own and claim reasonable costs back, so keep receipts.
Why do thunderstorms stop baggage handling?
Ramp staff cannot safely work outdoors during a lightning risk, so baggage loading and refuelling halt entirely — even when conditions on the runway itself look fine.
How do I get home if my flight is cancelled in bad weather?
A pre-booked fixed-fare car doesn't surge when everyone wants one at once, runs 24/7, and can collect you from whichever airport you actually landed at. We email a VAT receipt for any claim you make to the airline.
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