British Airways weather and ATC disruption: evidence, care and compensation
Reviewed on 10 August 2026. Unsafe weather or a binding air-traffic-control restriction can be extraordinary, but British Airways must connect the event to the disrupted flight and show reasonable measures. Ordinary congestion, a generic weather reference or an earlier restriction does not automatically remove compensation. Refund, rerouting and care remain separate.
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Enter your route, date and type of disruption. We will check whether your case qualifies for a claim under EU 261/2004 or UK261.
What happened to your flight?
Claim up to €600 for a delayed or cancelled flight.
Choose the situation that applies to your flight:
Ask for location, time, operational limit and recovery action. Weather at the origin, destination, diversion airport and an earlier rotation can each create a different causal case.
Weather evidence matrix
| BA explanation | Useful evidence |
|---|---|
| Wind above operational limit | Official observations, runway in use and aircraft limit |
| Snow or ice | Airport closure, runway status and de-icing capacity |
| Thunderstorm | Time-specific airport or route warnings |
| Fog or low visibility | Visibility data, approach restrictions and service timing |
| Weather at previous airport | Aircraft rotation and departure record |
| Forecast risk only | Decision time and reasonable safety basis |
Passengers should never argue that BA had to fly unsafely. The question is whether the meteorological condition actually prevented or restricted the operation and whether BA managed the consequences reasonably.
ATC is more than general airport congestion
Air-traffic management can impose slots, flow restrictions, airspace closure, runway-rate limits or a decision concerning a specific aircraft. Regulation 261's recitals recognise that a decision affecting a particular aircraft on a particular day can create extraordinary circumstances.
Request the slot or restriction window and its effect. A departure delayed 40 minutes by ATC followed by three hours of crew or technical delay should not be rejected as entirely ATC without allocation.
Routine queuing is not necessarily a formal air-traffic decision. BA should identify the responsible authority and operational instruction. NATS, Eurocontrol or airport records can support the chronology, but raw codes need explanation.
Knock-on effects across BA's network
A weather event at Heathrow can delay an aircraft later scheduled from another city. That causal chain can remain relevant after skies clear, yet reasonable measures become increasingly important. BA should show the aircraft rotation, crew duty constraints and recovery choices.
Large-scale disruption does not require perfect recovery. It does require a reasoned account of spare resources, flight prioritisation and rerouting. A carrier cannot merely cite morning fog to exempt every evening cancellation.
Compare other flights carefully. Another BA service operating may use a different runway slot, aircraft type or crew. The comparison can question an overbroad explanation, but it does not alone prove entitlement.
Mixed causes and final delay
European guidance supports separating delay attributable to extraordinary circumstances from other carrier-related periods. Suppose snow closes a runway for 90 minutes; after reopening, BA lacks a serviceable aircraft and reaches the final destination five hours late. The technical period needs its own analysis.
On one connecting ticket, use final destination. A weather-delayed feeder into Heathrow may lead to a missed long-haul service and a much larger final delay. The amount follows the protected first-to-final distance, subject to coverage and the proven causal period.
Arrival time remains first door opening, not touchdown. The BA three-hour guide shows how to preserve close-threshold evidence.
Refund and rerouting after cancellation
Even where weather or ATC fully establishes the compensation defence, BA must normally offer reimbursement, earliest rerouting or later travel following cancellation. Choose based on whether the journey still has value.
Earliest rerouting can involve another carrier or reasonable surface transport. During mass disruption, seats may be scarce, but BA should search real alternatives and keep passengers informed. Before self-booking, request a suitable option in writing and save the schedules available at that moment.
A refund generally ends the transport and continuing-care duty. Do not press it merely to release a booking if the passenger still expects BA to provide a flight.
Care during an external event
The duty to provide meals, refreshments, communication, accommodation and hotel transport is intentionally independent of fault. A passenger stranded overnight by a storm should request a room even though fixed compensation may not be due.
If BA provides no assistance, buy reasonable necessities and keep itemised invoices. Document hotel availability and transport conditions where prices are unusually high. Consequential losses at the destination belong outside the ordinary care schedule.
BA's current expense guidance excludes alcohol and recognises reasonable hotel, food, transport and communications. Its published categories do not reduce the underlying statutory standard to a rigid daily allowance.
Building a weather or ATC response
Preserve BA's exact notice and staff explanation. Collect official airport status, weather observations and air-traffic information for the relevant hours. Record original and replacement flights, operating carrier and final arrival.
Ask four questions:
- What precise event affected the flight?
- During which minutes did it prevent operation?
- What later causes contributed?
- Which mitigation and rerouting options did BA consider?
If BA answers with adequate evidence, focus the remaining request on care or refund. If the explanation remains generic, seek review and then use CEDR where eligible. The BA rejected-claim guide sets out the evidence bundle.
Current and future law
This guide applies UK261 and EC261 as in force on 10 August 2026. The EU's adopted revision will clarify extraordinary circumstances and strengthen parts of assistance and claim procedure after its application date. It is not yet the governing EC261 text and does not change UK261 automatically.
Always verify live weather, ATC and airport information on the travel date. Historic conditions or a forecast captured days earlier cannot establish the final operational decision.
FAQ
Does rain count as extraordinary weather?
Only if the actual conditions were incompatible with safe operation or created a qualifying restriction. Ordinary rain as a label is insufficient.
Can BA rely on weather at an earlier airport?
It can prove a knock-on chain, but should identify the aircraft rotation and reasonable recovery measures as the event becomes more remote.
Is every Heathrow queue an ATC decision?
No. Ask for the authority, slot or flow restriction. General congestion does not describe the legal event precisely enough.
Are meals payable during a storm?
Yes when the care conditions are met. Weather can remove fixed compensation while assistance continues for passengers awaiting rerouting.
What if weather caused only part of my delay?
Request an allocation. If remaining carrier-related delay still reaches the compensation threshold, a fixed claim can remain arguable.