Industrial action across London Underground services that begins Sept. 7 is expected to severely disrupt journeys to the capital’s airports this week, and a travel expert warned that alternative transport will become quickly overwhelmed.
Lukas Holter of Airport Taxi Hub said travellers should treat strike days as "completely different travel days" and give themselves at least three times the usual journey time. "If your normal journey takes 45 minutes, allow 2–3 hours minimum," he said, adding that booking professional airport transfers early is "absolutely essential during strikes."
Transport for London (TfL) says limited Tube services will run on the first day of action, with little to no service expected from Monday through Thursday. The Docklands Light Railway (DLR) will also be affected, with no service on Tuesday and Thursday, while the Elizabeth line and London Overground have no strike days scheduled but may face knock-on disruption. The Tube network is expected to resume normal running by late Friday morning.
Holidaymakers and commuters are being directed to alternative rail and coach services where possible. Heathrow can be reached via the Elizabeth line or the Heathrow Express from Paddington, and National Express coaches run regularly to the airport. Stansted is served by the Stansted Express from Liverpool Street, while Gatwick is reachable on the Gatwick Express from Victoria or by Thameslink services from St Pancras, Farringdon and Blackfriars. London City passengers may use the DLR on days it runs or catch replacement buses.
Holter cautioned that taxis, buses and Overground services will be under heavy pressure and that demand often outstrips supply on strike days. He recommended using real-time journey apps such as Citymapper and TfL Go to monitor routes and disruptions, and advised travellers to pre-book licensed airport transfers because they are not affected by Tube staff action and can reroute around road congestion.
Authorities and industry sources have also warned of opportunistic behaviour during major disruptions. Holter urged travellers to avoid unlicensed minicabs and to verify driver credentials through official booking apps. "Stick to licensed transport providers — unlicensed minicabs often appear during disruption, charging extortionate rates," he said. He also suggested carrying cash as a backup in case card machines are overloaded and packing food and water in case journeys take much longer than expected.
Airlines and airports typically advise passengers to check flight times and allow additional time for check-in and security when public transport disruption is expected. Passengers who are uncertain about their ability to reach terminals in time are encouraged to contact their airline for guidance on check-in deadlines and rebooking options.
TfL’s published service updates and national rail operators’ schedules will remain the primary sources for the latest information. Travellers are being urged to confirm onward connections and ground transport arrangements well in advance as the capital prepares for a week of reduced Underground availability and heightened demand on alternative services.