KLM-majority owned Transavia Airlines is pulling out of Gatwick later this year.
The carrier’s four daily weekday services to Amsterdam will be taken over by KLM or its subsidiary KLM UK.
This will give KLM a new presence at Gatwick to complement its Heathrow and Stansted operations.
A Transavia spokesman said no date had been set for the carrier to end its flights, but he said they were expected to stop at the end of the summer.
He said after Transavia pulls out, KLM will feed flights from Gatwick into Amsterdam to connect onto its long-haul services. Transavia passengers mostly terminate their journeys in the Dutch capital.
The KLM group has regular waves of regional flights, especially with KLM UK from Stansted, coming into Schiphol to feed into its long-haul network.
KLM’s Gatwick operations are expected to be co-ordinated with alliance partners Alitalia, Continental Airlines and Northwest Airlines. Continental’s codeshare agreement with Transavia at Gatwick will be switched to KLM and is likely to include Northwest.