Not sure if in France travel restrictions have been relaxed? Since 03/03/2021 the border between Poland and France is: Partial opening.
Before considering a trip from Wrocław to Strasbourg by plane, keep in mind that the government in France has stated that those allowed to enter on arrival are: Citizens and permanent residents of France, as well as residents of Schengen zone of the EU (EU countries, Iceland, Liechtenstein, Norway and Switzerland), Andorra, Monaco, Vatican, San Marino and Cyprus.
However, restrictions still apply when entering France due to the COVID-19 pandemic for: Foreign nationals outside the EU Schengen Zone with the exceptions above. UK are also limited.
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