Aerlingus chief executive Dermot Mannion was heckled by workers as he announced the end of the airlines service between Shannon and Heathrow.
The chief executive announced the change during a press conference on Tuesday, a decision that could effect business in the region.
The decision, according to Minister of state and Clare TD Tony Killeen was difficult to understand.
"The common sentiment being expressed today by public representatives and business leaders in the region is that Aerlingus is not committed to maintaining let alone developing existing operations at Shannon airport", he said.
An immediate review of the decision has been called for by Shannon Development chairman John Brassil. Brassil has said that the decision constitutes a fundamental breach of trust by Aerlingus in respect of Shannon and that the air service was crucial for the continued development of the west of Ireland.
Brassil's comments were echoed by Christina Carey of Impact, who represent cabin crew. Speaking on RTE radio Ms Carey said that any expansion of Aerlingus should not be at the expense of workers at Shannon.
Impact are currently seeking an emergency meeting with Aerlingus to discuss the switch.
The Shannon free zone employs over seven thousand people and generates exports of over 2.5 million euro annually, connectivity with the Heathrow hub is essential.
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