"Yesterday Coles chartered a plane to deliver fresh produce, groceries and bakery flour to flood-affected Townsville and Cairns stores," a Coles spokeswoman said.
"We are also investigating alternative delivery routes with trucks from Adelaide and Darwin on the roads to deliver to other flood-impacted areas of Far North Queensland.
"Coles would like to thank our local suppliers, who have helped keep fresh milk, eggs and produce in stores wherever possible."
Woolworths is also working hard to get food into the region, securing a barge and filling it with 300 tonnes of groceries while also chartering two planes.
"While the road access up north has been challenging, we've secured a barge to deliver 300 tonnes of fresh food, nappies, baby formula and other essential items," Woolworths Northern Queensland operations manager Tina Anandji said.
The barge is expected to arrive in Townsville tomorrow filled with an extra 30 contingency containers carrying essential lines such as water, long life milk, baby formula, beans, noodles and toilet paper.
Two charter planes with 40 tonnes of fresh food and essentials will also land in Cairns today.
Panicked locals in the north of the state have bought out entire supermarkets over the past few days with photos showing the true extent of the problem.
"The shops in Townsville are insane, literally can't get so many things from any stores, insane," a local wrote.
Despite some residents on the coast worried about floodwaters, other regions were relishing the rain.
McKinlay Shire Mayor Belinda Murphy said trucks from Coles and Woolworths stranded there by floodwaters had helped locals stock up on supplies.
"A week ago, you would have been standing in a paddock full of dust and a week later, you're surrounded by floodwaters," she said.
