Vaccinated Travelers Set to Be Freed From U.K. Isolation Rules Tim Ross, Bloomberg News A passenger pushes a trolley of luggage wait in the departures hall in Terminal 5 at London Heathrow Airport in London, U.K., on Monday, May 17, 2021. After a year of false starts, rogue virus strains and vaccine drama, Brits are finally able to travel again, if only to a handful of âgreen listâ destinations that wonât require quarantine on return. Photographer: Jason Alden/Bloomberg , Bloomberg (Bloomberg) -- British travelers who have received both doses of a coronavirus vaccine will no longer need to isolate when they return home from moderate risk countries, under a plan officials expect to come into force this month.