AirHelp, a flight compensation and passenger rights organisation, reveals the biggest disruptions that took place in the UK during the 2026 summer period.
AirHelp recorded that over 45 million passengers departed from the UK between June and August, with over 288,300 flights scheduled. Of these passengers, 28% of passengers were disrupted (12.7 million) and 506,000 people were eligible for compensation from their airline.
Analysis by AirHelp estimates that disruptions cost passengers a total of more than €947 million between June and August, amounting to nearly €1 billion in disruption related costs over just three months.
The data revealed three significant spikes in flight disruptions across the period. The highest level of disruption reported was on the 27th August, when more than 58% of passengers were affected, a further 54% experienced issue the following day, 28th August. Earlier in the summer period, on the 27th of June, 54% of passengers also experienced delays or cancellations.
By contrast, mid-June was the smoothest period for travellers. Just 13% of passengers were affected on the 16th of June, making it the least disrupted day of the summer, followed by 17th June (14%) and 15th June (16%). Together, these three dates represented the most reliable for air travel during the summer season.
Best and worst for on time performance
Despite handling a vast 11.4 million passengers between June and August, London Heathrow remained relatively resilient over the summer, with a disruption rate of 24%. The UK’s busiest airport, accounting for more than a quarter of all UK summer passengers, outperformed several major regional hubs.
In contrast, Manchester Airport emerged as one of the country’s most disruption prone airports, with more than 38% of passengers affected, followed by Birmingham Airport at 33%, Bristol at nearly a third (32%), and London Gatwick at 31%.
These figures highlight the operational pressures facing some of the UK’s busiest airports during the peak holiday season, with millions of travellers affected by delays, cancellations and schedule changes as demand surged.
Meanwhile, Liverpool John Lennon Airport and Aberdeen Dyce Airport were the UK’s most reliable major airports, with disruption rates of just 19%. Their strong performance suggests that smaller airports were better equipped to handle the seasonal travel rush.
Analysing routes in the UK
The UK’s most disrupted summer route was Manchester Airport to Burgas International Airport, where 76% of passengers experienced disruptions between June and August. This was followed by Edinburgh Airport to Heraklion Airport, with 75% of travellers affected. Rounding out the top three was the route from Birmingham International Airport to Bergamo Orio al Serio Airport, where 72% of passengers experienced disruptions during the peak holiday season.
While some routes were heavily affected by disruption, others proved exceptionally reliable. Flights from London Heathrow to Cologne-Bonn Airport, Glasgow International Airport to Frankfurt am Main and London Gatwick to Warsaw Chopin Airport all operated without any recorded disruptions during the summer period, making them the most reliable routes for travellers during the peak summer season.
Tomasz Pawliszyn, CEO of AirHelp said:
“Summer is the busiest travel period of the year, with airlines and airports continuing to see growing demand from holidaymakers. For many people, these trips are months in the making, making any disruption particularly frustrating.
“While delays and cancellations cannot always be avoided, passengers should not be left in the dark when they occur. Understanding your rights is essential, as it enables travellers to access the support and compensation they may be entitled to and helps prevent the unexpected travel issues from ruining a well-deserved break.”
For more information on passenger rights, visit: https://www.airhelp.co.uk/
