Truckers are trying to avoid the U.K. as Brexit red tape keeps them waiting to get to the continent.

New weekly data highlights the additional costs companies face when trading between Britain and the European Union after U.K. left the single market on Dec. 31. While the two sides agreed not to impose tariffs on goods, so-called non-tariff barriers are nevertheless creating obstacles for business.

Freight firms are shunning the U.K., keeping rejection rates on contracts well above the third-quarter average last week, according to high-frequency data from Transporeon, the global logistics platform. This was at least partly because haulers are being put off by delays — the median time truckers spent in lines at Ashford, southeast England, was about 15 hours.