Delegates on the annual Speaker's Tour have left on a two-week, $158,000 business class trip to Europe to learn about the challenges facing the global economy.
Speaker Lockwood Smith, his wife, and four MPs - National's Melissa Lee, Labour junior whip Darien Fenton, Gareth Hughes from the Green Party and New Zealand First's Denis O'Rourke - will tour Britain, Croatia and Brussels for 14 days.
Parliamentary Relations told APNZ the estimated budget is $158,000, of which $110,000 will be spent on business class airfares.
Some of the costs will be met by host parliaments as part of reciprocal arrangements.
Daniel Tasker from Parliamentary Relations said Dr Smith's wife was going in a "representational" role and the cost of her participation was coming from parliamentary funds.