A plane en route to Manchester was forced into an emergency landing in Southampton after a windscreen cracked.
Guernsey airline Aurigny confirmed the flight from the island to Manchester - which took at 5.18pmm on Sunday - had to be diverted after the incident.
The operator said the GR678 service had made a "precautionary emergency landing" in accordance with standard procedures.
The plane landed safely and no passengers or crew were injured.
Aurigny arranged a coach to transport customers from the Hampshire locations to its intended location in the North West.
An alternate aircraft is operating the delayed return GR679 flight from Manchester to Guernsey.
A statement from Aurigny read: "We thank our passengers for their patience and understanding - their safety, and that of our team, is our priority."
In April, Aurigny scaled back its service to London City and merged its Exeter and Bristol routes because of the rising cost of jet fuel.
Aurigny confirmed the flight from Guernsey to Manchester had to be diverted due to a cracked windscreen
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Nico Bezuidenhout, Aurigny's chief executive, admitted an unexpected decline in bookings and the increased price of kerosene - caused by the ongoing Iran war and closure of the Strait of Hormuz - had forced them to reduce the number of flights.
The Guernsey carrier also introduced a two pound surcharge on tickets, but Mr Bezuidenhout said further price hikes would have been needed to maintain all services.
A new Guernsey to London Heathrow introduced by British Airways on April 19 has also been blamed for the airline's financial issues.
States Trading Supervisory Board President Mark Helyar estimated Aurigny would make a £5million loss this year in April.
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Aurigny has reduced flights from Guernsey Airport (pictured) to London City because of the rising cost of jet fuel
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Aurigny said a new Heathrow route from a competitor would "have a materially negative impact on the airline's own passenger revenues to and from London".
"Aurigny neither has the intention nor the authority to provide a running commentary on revenue and financial performance throughout the year," it added in a statement.
Mr Helyar told Guernsey's States Assembly: "The new daily Heathrow service is clearly positive for connectivity.
"But additional capacity into London, especially on a route which is central to Aurigny's business, will affect Aurigny's London services and may have knock‑on effects for other routes such as Southampton, and, in turn, will generate financial losses in a publicly-owned business."
He also suggested the airline could be forced to cut flights to Gatwick, adding that the Guernsey Government needed to "land a new air policy to see what the Aurigny board can do protect itself".
Guernsey's current air policy was introduced in 2021 and is set to expire this year.
In May, Economic Development Committee President Sasha Kazantseva-Miller said: "The aviation and economic environment has evolved significantly since then, and the committee considers that not all of that framework is relevant and indeed may now be in conflict with the States’ 2018 air connectivity objectives and the immediate needs of industry and community."
The committee confirmed it was working on a new policy which would address how to fund route development and support packages.
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