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Heathrow airport expansion: everything you need to know

London
Gary Noakes
29 January 2025

You’d be forgiven for thinking the pandemic had killed off talk of expanding Heathrow, or other London airports, for that matter.

  • Chancellor Rachel Reeves to decide on Heathrow expansion on 29 January.
  • Expansion could displace 10,000 residents and face legal challenges.
  • Construction may not start for a decade, finishing in the 2040s.
  • Expansion aims to address airspace congestion and boost aviation sector.
  • Environmental concerns and opposition from residents are significant issues.
Airport expansion – 7/10

Heathrow is expecting to see its third runway up and running by 2035 (Credit: iStock / Sundry Photography)

But now, 17 years since the previous Labour government voiced its support for expansion, the issue is back on the agenda.

And on Wednesday (29 January), the party – now back in government – gave its support for expanding Heathrow for a second time.