The Globe and Mail reports in its Tuesday edition that as the war in Iran enters its second month, major companies, from airlines and couriers to on-line retail giants and grocers, are passing on fuel surcharges of as much as 20 per cent to consumers. The Globe's Mariya Postelnyak writes that Air Canada Vacations started implementing a $50 fee per passenger on some destinations. WestJet became the latest airline last week to announce a $60 fuel surcharge on all bookings made using a companion voucher from its MasterCard loyalty rewards program. Air Canada, meanwhile, does not have a specific fuel surcharge on tickets. "We are managing fuel costs through our regular fare structure," the airline said. With fuel prices reaching a national average of $1.86 a litre this week, it costs around 35-per-cent more to fill up a regular gas-powered vehicle than just a month ago. And it is about 45-per-cent more when it comes to the diesel trucks delivering parcels, produce and other consumer goods. Amazon, meanwhile, announced Thursday that it will apply a 3.5-per-cent surcharge to sellers using its Fulfillment by Amazon program starting April 17, costs that sellers will ultimately have to weigh whether to pass on to shoppers.