The plane bringing home Corporal William Savage, Fusilier Samuel Flint and Private Robert Hetherington has just landed at RAF Brize Norton.
Close family will spend time with the coffins before the cortege passes through the village of Carterton where friends and family will pay their respects as a memorial bell tolls.
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Anne Marie Morris lost the whip in July after audio footage emerged of her using the racist phrase "the real n***** in the woodpile".
Investigations into two MPs on both sides of the House are set to conclude - and both are proving tricky for their party leaders.
A trade union representative said the strike would either disrupt flights or generate substantial costs for the airline.