LAND'S END Airport has hosted a second meeting with members of the public from across west Penwith to discuss a £1.8 million investment.
Forced to close the airport for 56 days over the winter, bosses say improvements to two of its four runways are needed to ensure flights can continue in harsh weather.
Airport manager Chris Pearson invited stakeholders and figures from the community to the consultation to see where the money would be spent and why further development was needed.
Mr Pearson said half the funding would come from the European Regional Development Fund, adding that the mainland air link was vital for the Isles of Scilly, especially since the helicopter service was withdrawn.
Under the plans two of the runways would be hardened so flights between the islands and the mainland would have less of a chance of being affected by waterlogged ground.
"We couldn't take the risk of not being open for an extended period again," he said. "We're now the lifeline; we've become an essential link. We're the main form of transport for post, passengers, newspapers and the NHS."
Mr Pearson said early feedback had been positive, with only a few of the 50-plus guests outwardly opposing the plan.
Airport bosses say they hope the project will begin in autumn, and will be carried out with the islands' council.