Flights are being dropped on the Guernsey-Southampton route and three Jersey routes, to Birmingham, Bristol and Exeter. But it will retain a minimum daily service to Bristol and Exeter and multiple daily services on Guernsey-Southampton.
In all 28 flights are being removed from a schedule of 214 flights a week in the summer.
All other routes are unaffected and the airline said that it had safeguarded morning and evening connectivity for key island services.
The cancellations will continue until the start of the summer holidays in mid-July.
Blue Islands CEO Rob Veron said that the cuts were being made to give passengers full confidence that the new schedule would run on time.
‘We apologise to those who have been affected by the recent disruption and to those impacted by the upcoming changes,’ he said.
‘We understand the inconvenience this causes, and we wish to assure our customers and stakeholders we are working hard to resolve these fleet issues and fully restore our usual high on-time performance levels.
‘With these mitigations in place, we have created sufficient planned resilience to better ensure we can deliver the dependable service our customers rightly expect of us.’
The airline was suffering while it waited for a new aircraft to join its fleet which was due at the start of the year, he said.
An intensive maintenance programme to get the plane ready for the switch has taken longer than expected, out of Blue Islands’ control, but Mr Veron said that it was now hoping it would join its fleet within days.
Another aircraft was grounded after a newly-installed engine ingested debris at an airport, and has suffered delays in acquiring new parts and maintenance services before it can return to service.
‘We have also been seeking an alternative new engine and expect to be able to conclude this in the coming weeks,’ Mr Veron said.
There have been many complaints, especially in Jersey, about the airline’s recent record of cancellations, but it said that latest independent figures showed it had operated 98.5% of its scheduled flights in March and 80% had arrived on time.
Flight cancellations were marginally better than the national average for airlines.
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