ACL Update on the Middle East Conflict

19 August 2026

Operations in the Middle East have seen some stabilisation despite disruption continuing in some countries/airports.

ACL has updated its Guidance on Military action and related airspace restrictions over the Middle East and Gulf Region to reflect its view on which countries/airports are no longer experiencing serious disturbance and therefore detailing that date at which alleviation will no longer be applied . see here for the latest version (10).

For UK Airports:

  • The UK Government has amended the UK Slot Regulation to provide additional alleviation during NS26 and NW26. Additional guidance related to this provision can be found here.

For Dubai Airports:

  • Reduced capacity will impact the airport for the remainder of the NS26 season.

 

Middle East airport flight cancellations running at 35% for May

Leading airport slot manager, Airport Coordination Limited, says 35% of take-off and landing slots during May have been cancelled across the 30 Middle East airports it serves in Dubai, Abu Dhabi, Saudi Arabia and Oman.

This is down on the 54% cancellation rates experienced in through March and April with services at United Arab Emirates airports in Dubai and Abu Dhabi most impacted by the US-Israel war on Iran.

CEO Neil Garwood says: “May already shows 35% of slots cancelled although the actual outcome will be dependent on events.

“The airports furthest from Iran, such as those in western Saudia Arabia, are less affected.”

ACL manages slots at 80 airports in the Middle East, United Kingdom, Europe, Australia and New Zealand.

Garwood says the conflict has caused significant collateral damage in all these markets with surging jet fuel prices and limited supply prompting airlines to raise airfares and cut flights.

“We’ve been tracking airports across 11 countries since the start of hostilities that have experienced varying degrees of disturbance,” Garwood says.

At Sydney Airport, where ACL manages the slots, cancellations for flights to and from the Middle East were 60% in March, increasing to 67% during April.

For May, Middle East slot cancellations at Sydney are currently 32%, a number that may increase during the month.

At London’s Heathrow Airport, where ACL also manages the slots, air transport movements to and from the Middle East fell 47% during March while passenger numbers for the month slumped 51% over the previous year according to airport data.

Middle East slot cancellations at Heathrow during May are, like Sydney, at 32%.

ACL’s Garwood says communication between airlines and the slot manager is crucial during a fast-moving crisis.

“Operators want early clarity around whether their future slot allocation will be protected if they cancel to help with planning and route workarounds,” he says.

“ACL issued tailored guidance to assist airlines with how they could respond to the events within the rules and regulations of each jurisdiction and worked with industry bodies to harmonise this where possible.

“We’ve seen airlines be agile about recycling slots for different purposes. For example, avoiding the Middle East region and putting extra flights on routes as demand patterns change.”

As fighting in Iran and Lebanon has subsided, Garwood says the focus is now on fuel supply and its impact on cancellations.

S24 SAL Distribution

All S24 SAL’s  have been issued. Please contact the coordinator if you have not received the message for a particular airport.

ACL Airports’ World Cup Flight Statistics

Airport Coordination Limited (ACL) coordinate 72 airports worldwide, including 26 UK and Republic of Ireland airports and 35 airports in the Middle East. With all eyes on Qatar for the FIFA World Cup, the region has looked to their Middle-eastern partners to support getting the 1.2 million fans from across the world into the country. Nine of ACL’s Middle-Eastern Airports are supporting this venture.

Here we share our infographic of the passenger flight statistics so far…

Click here for larger PDF view

Did you know?
ACL have a long history of coordinating major international sporting and political events. To find out more, and discover how we can help your airport manage extreme demand, visit our Special Events page – Special Events Coordination

Did you know?
ACL hold all the flight data for slot schedules at our 72 airports, worldwide. Businesses can use this data to support their own planning, operations and analysis. If you would like to know more about our data and get in touch, visit our Data Services page – Data Services

 

Data analysis by Airport Coordinator, Oliver Thompson. Imagery by Denise Wakeford, Sales and Marketing Lead.

 

W22 SAL distribution

UPDATE 16th June:
All W22 SAL’s have now been issued, including Heathrow which was sent on 16 June 2022.

 

All W22 SAL’s with the exception of London Heathrow have been issued. Due to a legal challenge involving slots at London Heathrow, we have had to delay the issuance of all SALs at London Heathrow pending legal advice. We will provide a further update no later than Friday 17th June, if the SAL’s have not been distributed by then.

For all our other airports please contact the coordinator if you have not received the message for a particular airport.

 

S22 SALs for ACL Airports

All S22 SALs for ACL airports have now been distributed. Please contact the coordinator if you have not received the message for a particular airport.

ACL announce new CEO

Airport Coordination Limited would like to inform you that, following a thorough search and rigorous selection process, the Board of Airport Coordination Limited is pleased to announce the appointment of Neil Garwood as our new Chief Executive Officer (CEO). Neil was formerly Managing Director of Southampton Airport, where he had been for ten years, having risen through the ranks after initially joining them as Terminal Operations Manager in 2010.

Neil will succeed Airport Coordination Limited’s departing CEO, Edmond Rose, who is moving on from his role at the end of February. The ACL Board thank Edmond for his outstanding contributions and leadership throughout his time with us and especially through the challenges of this last year.

The Chair of ACL, Lesley Cowley said “I am delighted to welcome Neil to ACL. Whilst our current CEO will be much missed, we are confident that Neil’s experience, drive and values make him an ideal successor to lead ACL as we emerge from the pandemic”.

The new CEO, Neil Garwood said “I am excited to be joining the world’s leading independent airport coordination organisation at a time of seismic change in the industry and very much look forward to continuing to deliver on ACL’s ambition of world class coordination excellence for our customers and stakeholders”.

Neil Garwood, new CEO of Airport Coordination Limited

8 of our Highlights from 2020

2020 wasn’t quite the year we all wanted, but at Airport Coordination Limited (ACL) we’ve chosen to start 2021 by focusing on the positives. We’ve rounded up some of our best bits from last year. Welcome to ACL’s highlights!

  1. Our Industry

    Although 2020 will be remembered as one of the biggest crises in recent aviation history, what last year did demonstrate was the strength and resolve of a passionate industry who can pull together. The support this year from businesses across our trade has been inspiring and we’ve enjoyed collaborating, supporting and working with everyone who has helped us to grow as an organisation over the last year.

  2. Adaptability

    Within a night ACL went from being a face-to-face, office-based organisation to going completely remote. We not only learnt to adjust our individual working styles, but we adapted and grew as a business. We took on a wave of slot cancellations, queries and policy changes which kept our coordinators busy during the pandemic. We saw the best out of our people in 2020 and are so proud how readily they rose to the challenge and adapted to the new norm.

  3. Innovation

    Whilst last year felt like a bit of a set-back, in reality it spurred us to be more innovative than ever. New processes become the norm at ACL. Changes led to major system developments and impressive Power BI achievements. We provided Covid Cancellation reports to our airport customers and industry forums providing them with the data they needed, and we launched our new interactive Start of Season reports, which provided important commercial information and allowed data to be filtered by operators, weeks and routes.

  4. Self-Improvement

    2020 taught us not only to be grateful for our own heath, and the health of our families, but the health of our organisation too. We looked inward and went about improving things within our own business. As a result, scores from our annual staff survey rose across the board. Our overall Engagement measure reached significantly higher than other benchmarked organisations (+15% ) and staff satisfaction improved significantly.

  5. Customer commitment

    2020 made us focus even more on our customers and make sure we were supporting them through some of their toughest times. We were devoted to making sure the service we delivered was as effective as possible, being proactive rather than reactive; responding to their needs; and working together to create new processes, reporting and insights. Each of us experienced, more than ever, the importance of good values, empathy and relationships which we built into the customer service commitments we launched in 2020 which you can view on our website – https://www.acl-uk.org/our-customer-service-charter/

  6. Welcoming new customers to the fold

    This year we welcomed six new airports in Oman to our portfolio; Muscat International Airport, Duqm Airport, Marmul Airport, Qarn Alam Airport, Salalah Airport and Suhur Airport. We also formally began our data collection service at Riga airport and expanded our airport schedule data sales to more ground handling and travel agencies. We look forward to working with each of these customers for years to come.

  7. Expanding our ACL family

    Last year we welcomed two new excellent members to our team, Richard Jones and Wade Chan. They slotted in (excuse the pun) seamlessly and successfully into ACL without ever meeting more than a handful of us in person. Both have brought strong experience with them and made a positive difference to the way we work and the service we provide to our customers.

  8. Some ‘Us’ time

    We pulled out the stops this year to make sure our forced separation didn’t threaten to pull us apart. Virtual Teams meetings, board meetings, even conferences became the norm. ACL pulled together in the background too with regular group games, after work quizzes, a vibrant social feed and even an eventful virtual Christmas gathering.

With 2020 behind us, we are looking forward to supporting our customers through the next year and many more years to come. Though the route may be bumpy, and the destination sometimes unclear, as an industry, we have proven our resolve to get through it together, and at ACL we are determined more than ever to continue delivering coordination excellence.

By Denise Wakeford- Sales and Marketing Lead

Northern Summer 2021 (NS21) WASB Slot Waiver Announcement

The Worldwide Airport Slot Board (WASB) issued its recommendation for airport slot alleviation measures covering the Northern Summer 2021 scheduling season. The following provides some initial guidance to give clarity on its application at airports coordinated by ACL to avoid unintended consequences should airlines apply the WASB recommendation immediately.

VALIDITY

The WASB announcement is a recommendation. For a waiver to be applied, the Regulatory or competent authority needs to adopt this recommendation or issue an alternative waiver. Across all ACL airports this has not yet occurred so currently NO waiver for Northern Summer 2021 is being applied.

When the position changes, ACL will update its guidance.

CANCELLATIONS IN ADVANCE OF A WAIVER

Any cancellation made prior to a waiver being issued may impact on your ability to retain the historic slot. For example, a full season slot returned before alleviation has been granted will be returned to the slot pool and reallocated based on the waitlist at that time.

FURTHER GUIDANCE

Once ACL is aware of the detail of any formal waivers, it will review and where necessary provide further guidance. The current guidance on alleviation can be found here.

Important Coronavirus update- ACL’s full service continues

During the current Covid-19 outbreak, ACL is pleased to maintain its full service to customers, continuing to support the aviation industry through the current crisis. In March, we’ve handled more than double the usual number of schedule messages, as well as providing many bespoke reports for airports, support for airport planning and extra reports for data customers.

ACL’s staff will continue to be available during normal working hours for all our offices, whether in New Zealand, the UAE or the UK. We continue to follow official government advice in each country we operate by limiting contact and working from home.