Global travel disruptions will stretch into a fourth day with thousands of flights grounded and airports remaining closed as the conflict widens in the Middle East.Hundreds of thousands of stranded travellers have scrambled to make new connections since the attacks on Iran by the US and Israel began on Saturday, shutting down most of the airspace over the region.Etihad said tonight that all flights to and from Abu Dhabi would be suspended until at least 2pm on Tuesday (9pm AEDT).READ