Politicians' children will no longer be allowed to fly business class to visit their parents in Canberra at the taxpayers' expense.

The Commonwealth Remuneration Tribunal has determined the dependent children of MPs must travel economy class on their three taxpayer-funded flights each year to the nation's capital.

In a ruling released on Monday, the tribunal formalised its decisions on six of the 36 recommendations of an independent review of parliamentary entitlements.

The review was sparked by revelations that former speaker Bronwyn Bishop had billed taxpayers for a $5,000 helicopter flight — a trip that would have taken 90 minutes by car.

It found the number of flights allocated to each child should remain but travel should "not constitute an indulgence".

"The review report noted the importance of providing opportunities for family reunion as a means to assist parliamentarians to maintain family life," the decision said.

MPs are expected to leave their families for 20 weeks each year while Parliament sits in Canberra.

The determination also extended entitlements for new mothers, reduced flights for retired politicians, and maintained transport allowances for MPs in large electorates.

Since 2015, new mothers have been allowed to travel with another person on parliamentary business to help with breastfeeding.

That will be extended to allow an accompanying person on trips to help care for a child up to 12 months old.

Furthermore, retired politicians will get three flights to Canberra or their electorate office to "wind up" their affairs in the three months following their departure, down from five flights over six months.

The determinations come into effect in July.