0 a law preventing people from travelling somewhere, especially preventing a particular person or group from entering a particular country:
The UN Security Council imposed a travel ban, restricting foreign travel by the country's officials, to punish its government for harbouring members of a terrorist organization.
Trump's first travel ban on people from Muslim-majority countries was declared unconstitutional.
Once the air travel ban is lifted, it's expected to take airlines several days to get operations back to normal.
Two England fans defying a travel ban were put on a plane back home after arriving in Istanbul for the match.
