An airplane takes off in Heathrow Airport in London, Britain, March 18, 2022. The British government removed all remaining COVID restrictions on international travel for all passengers from 4 a.m. local time on Friday. (Xinhua/Li Ying)
Passengers walk in Heathrow Airport in London, Britain, March 18, 2022. The British government removed all remaining COVID restrictions on international travel for all passengers from 4 a.m. local time on Friday. (Xinhua/Li Ying)
Passengers walk at the international arrivals area in Heathrow Airport in London, Britain, March 18, 2022. The British government removed all remaining COVID restrictions on international travel for all passengers from 4 a.m. local time on Friday. (Xinhua/Li Ying)
Passengers walk in Heathrow Airport in London, Britain, March 18, 2022. The British government removed all remaining COVID restrictions on international travel for all passengers from 4 a.m. local time on Friday. (Xinhua/Li Ying)
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