Heathrow Express Future Questioned as TfL Pushes for Elizabeth Line
Transport for London suggests repurposing valuable rail paths currently used by the Heathrow Express.
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The central claim is attributed to TfL and Heathrow, with figures provided, but lacks independent corroboration.
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The future of the Heathrow Express, a premium rail service connecting the airport to central London, is being questioned as Transport for London (TfL) argues for a reallocation of valuable rail paths. TfL suggests these paths could be better utilised by the Elizabeth line, which offers a more affordable and extensive service into the capital.
Passenger Numbers and Fares Under Scrutiny
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Last year, the Heathrow Express transported 4.5 million passengers. This figure constitutes less than 6% of the total air passengers using Heathrow, with a significant portion of these numbers attributed to airport staff travelling on discounted tickets. The service charges £26 for a one-way journey to Paddington, a journey that takes between 15 and 21 minutes. While it is technically the fastest route to central London, passengers travelling beyond Paddington may find the Elizabeth line or even the Underground quicker, depending on their final destination.
In contrast, the Elizabeth line charges £15.50 to reach any of its central London stations from Heathrow. TfL views the Elizabeth line as a more compelling service, particularly for business travellers, due to its direct routes into the City and Canary Wharf. Currently, only two Elizabeth line trains per hour serve Heathrow's Terminal 5, which handles approximately 40% of the airport's passengers. This frequency is scheduled to double next year, but TfL believes more capacity into Heathrow could be freed up by repurposing existing rail paths.
There’s a way of repurposing that to be more affordable, more attractive, and carry more public transport users.
Alex Williams, chief customer and strategy officer at TfL
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Operating Agreement and Future Considerations
The Heathrow Express's operating agreement with the Department for Transport, which grants the service access rights to the national railway network, is set to end in June 2028. The Department for Transport has stated that no decision has yet been made regarding the future operation of the service. The operator, Great Western Railway, is scheduled to be nationalised and become part of Great British Railways next year. Heathrow Airport owns the stations and a five-mile stretch of railway from the airport to the mainline, an asset stemming from its original investment in the Express in the 1990s.
A spokesperson for Heathrow stated that the Heathrow Express generated £48m in revenue during the first six months of 2026. They added that the service operates without taxpayer funding and contributes to keeping airport charges lower, emphasizing that passengers value choice and that the Heathrow Express remains an important part of competitive connectivity.
Broader Airport Expansion Context
The discussion around the Heathrow Express's future occurs against the backdrop of Heathrow's proposed £33bn expansion plan, which includes plans for a third runway. TfL has expressed concerns that Heathrow's expansion plans do not adequately address the need for improved public transport to manage the projected increase in passengers and staff. Alex Williams of TfL highlighted that Heathrow has not committed any of its expansion expenditure to improving rail services, while simultaneously planning to increase car parking capacity. This approach, he suggested, contradicts previous commitments to avoid increasing traffic and may represent a step backwards in promoting public transport use.
The Piccadilly line, a cheaper alternative operated by TfL, is also scheduled for an upgrade to its signalling and trains, which is expected to increase its capacity. Other rail schemes, such as the Heathrow Southern Railway and a Western Rail link, have been proposed to enhance connections to the wider national rail network.
What Happens Next
The Department for Transport is consulting on the national policy statement for Heathrow expansion, which requires parliamentary approval. Decisions regarding the future operation of the Heathrow Express are expected to be made in the context of this consultation and the expiry of its current operating agreement in June 2028.
Questions this report answers
+How many passengers use the Heathrow Express?
Last year, the Heathrow Express carried 4.5 million passengers. This figure represents less than 6% of Heathrow's total air passengers, with airport staff on discounted tickets forming a notable portion of its ridership.
+What is the cost difference between the Heathrow Express and the Elizabeth line?
The Heathrow Express charges £26 for a one-way journey to Paddington. The Elizabeth line, by comparison, costs £15.50 to reach any of its central London stations from Heathrow.
+When does the Heathrow Express's operating agreement end?
The operating agreement between the Heathrow Express and the Department for Transport concludes in June 2028. This marks a potential point for significant changes to the service's operation.
+Does the Heathrow Express receive taxpayer funding?
According to a Heathrow spokesperson, the Heathrow Express operates without taxpayer funding. It generated £48m in revenue in the first six months of 2026 and is seen as contributing to keeping airport charges down.
WE FILE
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The London Travel Desk assembled this report from the outlets listed below. Language-model drafting is reviewed under human editorial supervision, with scoring notes and corrections kept visible.
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