TUI ranks among worst airlines for UK flight delays

Newly analysed aviation data indicates that TUI is among the worst major UK airlines for flight delays, with average wait times and on-time performance lagging well behind pre-pandemic levels.

Fresh analysis highlights scale of TUI delays

Recent assessments of Civil Aviation Authority punctuality statistics point to TUI Airways as one of the poorest performers for on-time departures among major UK airlines. Consumer-focused reviews of CAA departure data between May 2024 and April 2025 show that TUI recorded the lowest proportion of flights leaving within 15 minutes of their scheduled time within a group of six large carriers serving the UK leisure market.

Across that 12-month period, publicly available figures indicate that fewer than six in ten TUI flights departed on time. Separate analysis of CAA records from January to September 2025 places TUI at the bottom of a wider league table of UK airline reliability, with on-time departures estimated at around 57 percent. The same datasets suggest that in peak summer months of both 2023 and 2024, less than half of the airline’s UK flights ran on schedule.

The latest numbers mark a deterioration in performance compared with the last full year before the pandemic. In 2019, a significantly higher share of TUI flights left on time, but that rate has since slipped by several percentage points, indicating that punctuality has not recovered in line with rising passenger demand.

Industry commentators note that while many airlines have faced operational challenges during the travel rebound, the concentration and persistence of delays at TUI stand out in the CAA tables, which measure performance across carriers using a consistent 15-minute threshold.

Average wait times and how they compare

The same CAA-based analyses provide insight into what those percentages mean for passengers in terms of actual wait times. For delayed TUI services, average departure delays are reported in the tens of minutes, with some routes in peak seasons experiencing substantially longer waits. Although exact averages vary by month and airport, the overall pattern shows that customers on TUI flights are more likely to face extended waits at the gate than passengers flying with several rival UK carriers.

By contrast, other large airlines operating similar leisure and short-haul routes have maintained higher on-time scores, even if their performance also worsened compared with 2019. Consumer research comparing six major brands finds that while all recorded more delays than before the pandemic, TUI consistently sat at the bottom of the rankings on the key metric of departures within 15 minutes of schedule.

European disruption data compiled by air passenger rights specialists supports this picture. Rankings that track the proportion of on-time services across dozens of European airlines put TUI below the continental average for punctuality during 2024, with an on-time rate close to 60 percent and a year-on-year decline. This leaves the UK holiday carrier grouped with some of the region’s most delay-prone operators in terms of day-to-day reliability.

For travellers, the numbers translate into a higher likelihood of missing connections, arriving late at resorts and facing knock-on costs for transfers and accommodation. Travel advisers point out that even relatively modest average delays can feel far more disruptive when they become routine on busy seasonal flights.

Why are TUI flights being held up?

Multiple factors appear to be driving the pattern of delays seen in the CAA data. Industry reports highlight a combination of airline-specific and system-wide pressures, including tight scheduling, aircraft and crew availability, airport congestion and wider air traffic control constraints across Europe. In TUI’s case, the airline’s strong focus on peak-season leisure routes means its operations are heavily concentrated at the busiest times and in the most crowded airspace.

European air traffic management statistics for 2024 show that reactionary delays, where one late flight triggers subsequent knock-on hold-ups, make up the largest share of delay minutes across the network. Airline-related causes such as ground handling, boarding bottlenecks and staffing issues remain the second-largest contributor. Analysts say carriers with dense, highly seasonal schedules can be particularly vulnerable when disruption strikes, because there is less slack in the system to recover.

Travel sector commentary also points to resource constraints at several UK and European airports frequently used by TUI. Where terminals, security lanes and stands are already stretched, a late-arriving aircraft or slow turnaround can quickly escalate into longer gate waits for departing passengers. In these circumstances, airlines with smaller fleets and limited spare capacity may struggle to bring in replacement aircraft or crews when problems arise.

While some causes, such as weather and airspace restrictions, sit outside any airline’s direct control, consumer advocates argue that the divergence in performance between carriers facing similar conditions suggests operational planning and resourcing decisions are also playing a role in the gap between TUI and its competitors.

Passenger rights and compensation options

The prominence of TUI in recent delay rankings has renewed attention on what UK and EU rules offer to affected passengers. Under long-standing regulations that still apply to flights departing the UK or EU, travellers may be entitled to fixed-sum compensation when a significant delay is deemed to be within an airline’s control and not caused by extraordinary circumstances such as severe weather or sudden air traffic restrictions.

Eligibility depends on the length of the delay and the distance of the flight. For long waits, airlines must also provide care in the form of refreshments, communication and, where necessary, overnight accommodation. Consumer organisations report, however, that many passengers remain unaware of their rights or are unsure how to pursue a claim when a disruption occurs.

Specialist claims firms and legal-tech platforms have responded by publishing regular “league tables” of the most and least punctual airlines, based largely on CAA and Eurocontrol data, and by offering to help passengers assess whether a delay qualifies for compensation. These intermediaries say that complicated rules, differing interpretations of what counts as an extraordinary circumstance and incomplete information about the root cause of a delay can all discourage travellers from seeking redress.

Regulators and advocacy groups have encouraged passengers to keep detailed records of their journeys, hold onto boarding passes and booking confirmations, and submit written complaints directly to airlines in the first instance. If disputes arise, options can include escalation through alternative dispute resolution schemes or small claims procedures, depending on the jurisdiction and the amount at stake.

What TUI customers can do ahead of peak season

With the main summer holiday period approaching, frequent flyers and travel planners are watching punctuality indicators closely. While TUI continues to carry millions of passengers each year, the latest data suggests that those booking with the airline should build additional time into itineraries, particularly when connecting to cruises, long-distance rail or onward flights not booked as a single package.

Travel experts often recommend scheduling longer layovers, avoiding tight same-day transfers and choosing early-morning departures where possible, as these services are statistically less likely to be affected by accumulated delays from earlier in the day. For customers bound to package holiday timetables, paying close attention to airport and route-level performance can help in selecting departures that have historically proved more reliable.

Holidaymakers are also being advised to review the terms of their travel insurance, with a focus on cover for delays, missed departures and additional accommodation costs. Policies vary widely in the thresholds and documentation they require, and understanding the small print in advance can make it easier to recoup expenses when plans are disrupted.

For now, the CAA statistics and independent analyses place TUI among the least punctual options in the UK market, even as the wider industry grapples with congestion and capacity issues. As more recent months of data are added and airlines adjust their schedules and resources, passengers and analysts alike will be watching to see whether the carrier manages to bring its average wait times closer into line with its rivals.