What do the new three-tier lockdown rules mean for travel in the UK? Tier 1 (medium): No restrictions on travel, but avoid visiting a Tier 3 area, and follow household-mixing rules in a Tier 2 area. For the latest travel inspiration, see our guide to where you can travel from the UK. These travel quarantine rules apply to anyone arriving by air, plane or sea. Find out more about what the new guidelines mean via our UK travel quarantine guide.