ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
A target, per the source[1]: consent is only aimed for "before 2030", after which "a third runway would then open by 2035".Heathrow Airport has set out a £49BN expansion plan, including a long-sought third runway and a new terminal complex, and has approved work on a planning application after decades of UK government indecision.
≈$62.8B
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