LOS ANGELES — Toymaker Basic Fun’s team that oversees ocean shipments of Tonka trucks and Care Bears for Walmart WMT.N and other retailers is racing to reroute cargo away from the Suez Canal following militant attacks on vessels in the Red Sea. Suppliers for the likes of IKEA, Home Depot HD.N, Amazon AMZN.O and retailers around the world are doing the same as businesses grapple with the biggest shipping upheaval since the COVID-19 pandemic threw global supply chains into disarray, sources in the logistics industry said. Florida-based Basic Fun usually ships all Europe-bound toys from its China factories via the Suez Canal, the quickest way to move goods between those geographies, CEO Jay Foreman said in a telephone interview from his Hong Kong office. That trade route is used by roughly one-third of global container ship cargo, and redirecting ships around the southern tip of Africa is expected to cost up to $1 million extra in fuel for every round trip between Asia and Northern Europe. Yemeni Houthis’ drone and missile attacks in the Red Sea to show their support for Palestinian Islamist group Hamas fighting Israel in Gaza have upended shipping plans. Basic Fun is now working through the holidays to send toys from China to ports in the U.K. and Rotterdam via the longer route. It is also diverting some goods bound for ports on the U.S. East Coast from the Suez Canal to the drought-choked Panama Canal, while switching others to the West Coast via the direct route across the Pacific Ocean. “It’s just going to take longer and it’s going to cost more,” said Foreman, who added that rates for some China-U.K. freight have more than doubled to around $4,400 per container since the Israel-Hamas conflict began in October. The Suez Canal situation remains fast changing, and shippers MaerskMAERSKb.CO and CMA CGM are moving to resume voyages with military escorts through the Red Sea. The biggest impact likely will come over the next six weeks, said Michael Aldwell, executive vice president of sea logistics for Switzerland’s Kuehne + Nagel KNIN.S. “You can’t flick a switch” and reorganize global shipping, said Aldwell, who expects the diversions to cause a shortage of vessel space, strand empty containers needed for China exports in wrong places and send short-term transport price indexes sharply higher. According to estimates from freight platform Xeneta, it costs $2,320 to ship a 40-foot equivalent unit (FEU) container from the Far East to the Mediterranean “post escalation” versus $1,865 per FEU in early December. It costs $1,625 to ship an FEU from China to the United Kingdom “post escalation” versus $1,425 per FEU in early December. These rates do not include “extra ordinary” risk surcharges and “Emergency Recovery Cost” that can be between $400 and $2,000 per FEU, Peter Sand, chief analyst at Xeneta, said. Scramble for space As of Wednesday, nearly 20% of the global container fleet — or 364 hulking container vessels capable of carrying just over 2.5 million full-sized containers — had been set on a new course due to the Red Sea attacks, according to Kuehne + Nagel data. Mitsui O.S.K. Lines 9104.T and Nippon Yusen 9101.T, Japan’s largest shipping companies, said their vessels with links to Israel were avoiding the Red Sea area and both companies were monitoring the situation carefully for next steps. Vessel owners already have begun rationing the less expensive, contract-rate space they reserve for customers, said Anders Schulze, head of the ocean business at digital freight forwarder Flexport. For example, he said, a customer who delivers five containers a month versus the 10 promised in their contract may only get five containers at contract rates. The remainder would be subject to expensive spot market rates. This has set off a scramble to reserve space ahead of the early February deadline to get goods out of China before factories there close for the extended Lunar New Year celebrations, logistics experts said. “Every single booking [out of China] now needs to be reconfirmed. The dates could change, the routing may change,” said Alan Baer, CEO of OL USA, which handles freight shipments for clients. OL has contracts with ship owners and is part of the rush to secure spots on ships. Small shippers are most at risk of being elbowed out. Marco Castelli, who has an import/export business in Shanghai, has been trying to rebook three containers of Chinese-made machinery components bound for Italy after the shipments were canceled due to the crisis. “Transfer my situation to a large corporation and you get what’s going on,” he said. Foreman at Basic Fun, which plans to have about 40 containers on the water before the Lunar New Year, said the company’s contracts with customers don’t include a way to recover the extra expense. “The price is fixed. [Most suppliers] are going to have to eat those costs.”