Senior executives from FlyBe have held talks with the Island's Chief Minister, to discuss fears over the introduction of a new tax on air travel.
The UK government is considering replacing Air Passenger Duty with a 'per plane' tax.
That's a major worry for airlines serving the Isle of Man, the Channel Islands and UK regions.
FlyBe says a charge on planes, irrespective of how many passengers are on board, could make some routes unviable.
Spokesman Niall Duffy says they'll be telling the UK authorities, air services to places like the Isle of Man are a lifeline - not a luxury
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Some flights may be delayed or cancelled today due to weatherÂ
