Travel chaos: extreme weather and school holidays cause long delays at Sydney airport

Authorities urge people to adjust travel plans and avoid driving on Monday amid heavy rain and flooding in parts of NSW

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Extreme weather, school holidays and staff shortages have caused long delays at Sydney airport again on Monday, with queues stretching out the door for the third day.

The airport chaos comes as the State Emergency Service and the New South Wales government warned people not to travel on the roads if they don't have to on Monday because of the flooding and inclement weather affecting swathes of the state.