Sudden thunderstorms at Heathrow and Gatwick: chaos in British skies
On Sunday, June 28, 2026, over 900 flights were canceled or delayed at Heathrow (LHR) and Gatwick (LGW) airports due to a sudden worsening of weather conditions. After weeks of record heatwaves in the UK, severe thunderstorms hit southern England causing significant disruptions to airport operations.
Weather context and flight impact
For several weeks, the UK experienced a heatwave that brought record temperatures, challenging infrastructure and services. However, on June 27-28, a violent thunderstorm front struck London areas, changing the dry and hot climate into heavy rain, lightning, and strong wind gusts.
The consequences at the UK’s main airports were immediate. Heathrow, the largest British airport, and Gatwick, second in passenger traffic, both faced operational interruptions:
- Exceeding flight handling capacity: Safety conditions imposed restrictions on aircraft takeoff and landing movements.
- Massive cancellations and delays: According to updated data, over 900 flights across cancellations and delays were recorded on Sunday and Monday.
- Passenger chaos: Long waits at security checks, overcrowding in boarding areas, and difficulties with flight reconfirmations.
How these events affect passengers
For those traveling to or from London, the repercussions are multiple:
- High risk of cancellations: If your flight is scheduled to arrive or depart from LHR or LGW in the days immediately following the events, the likelihood of cancellations or delays remains high.
- Necessary itinerary changes: Many passengers will need to reschedule flights, possibly choosing alternative airports or changing dates.
- Compensation and passenger rights: In case of cancellation, passengers may be entitled to refunds or assistance under European Regulation 261/2004.
Practical advice for travelers
If you have a flight to or from Heathrow or Gatwick in the coming weeks, here are some useful tips:
- Constantly monitor your flight: Use our Flight status check page on FlightGuard for real-time updates on cancellations and delays.
- Contact your airline: In case of changes, the airline can provide information on rebooking or refunds.
- Arrive at the airport well in advance: Longer times for checks and possible queues.
- Consider alternative airports: Flying to or from smaller or regional airports may help avoid inconveniences in some cases.
- Prepare for possible disruptions: Bring snacks, water, and entertainment for prolonged waits.
- Check refund or assistance requirements: For canceled or significantly delayed flights, review policies concerning reimbursements and compensation.
Impact on airlines
Major airlines operating at Heathrow and Gatwick, such as Ryanair (FR) and easyJet (U2), are reorganizing flight schedules to minimize disruptions, but changes will continue frequently until weather conditions stabilize.
More information on major airports
- Heathrow Airport (LHR): more information and updates available in our dedicated section.
- Gatwick Airport (LGW): discover the services, news, and current conditions.
Preparing for the future
These episodes highlight how weather can influence safety and punctuality in air transport. It is always advisable to plan flexibly and stay informed.
If you are organizing a trip or have a reservation soon, it can be helpful to follow our advice to reduce stress and handle any problems more calmly.
Want to know if your next flight is at risk? Check your flight risk on FlightGuard.
