Australians jetting off for Christmas with budget airline Jetstar could have their holiday plans disrupted.

The Transport Workers Union has confirmed about 250 Jetstar workers across the country have voted in favour of taking protected industrial action before Christmas and beyond.

In addition 650 Jetstar pilots, part of the Australian Federation of Air Pilots, have also voted to strike over a pay dispute.

Transport Workers Union national secretary Michael Kaine told Oliver Peterson says passengers will be affected.

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